The BCBS Prefix List IAA to IZZ provides medical billers and healthcare providers with a reliable way to identify the correct Blue Cross Blue Shield issuing company before submitting claims. Because each alpha prefix connects to a specific BCBS Prefix State and plan category, even a small routing mistake can slow reimbursement.
BCBS Prefix List IAA to IZZ
Reviewing the BCBS Prefix List IAA to IZZ during eligibility verification helps protect revenue and reduce unnecessary claim corrections. Moreover, many I-series prefixes belong to different regional BCBS organizations such as Indiana, Michigan, Texas, and New Jersey. As a result, careful verification ensures that claims move smoothly through the correct payer system.
How BCBS Alpha Prefixes Impact Claim Processing
Every BCBS member ID begins with three letters known as the alpha prefix. These letters determine:
- The issuing BCBS organization
- The BCBS Prefix State
- The member’s plan structure (HMO, PPO, EPO, HDHP, Medicare Advantage, Medicaid)
- Proper electronic payer routing
For instance, if an ID starts with IED or IWA, the billing team must confirm whether the plan falls under Anthem BCBS of Indiana and identify the correct coverage type before submission. Otherwise, the claim may require resubmission due to payer mismatch.
🔎 BCBS Prefix Finder – IAA to IZZ State & Plan Lookup
The BCBS Prefix Finder section below allows billing teams to quickly match high-volume I-series prefixes with their respective states and plan categories. Instead of relying on memory or assumptions, providers can use this structured lookup as an initial reference and then verify benefits directly through the payer portal. Consequently, practices reduce denials and improve clean claim rates.
BCBS Prefix Lookup From IAA to IZZ
| BCBS Prefix | State | Company Name | Types Of Health Plan |
|---|---|---|---|
| IAA | Wisconsin | Anthem BCBS of Wisconsin | HMO, High-Deductible Health Plan (HDHP), EPO |
| IAB | South Dakota/Iowa | Wellmark BCBS | PPO, Medicaid, Traditional Indemnity |
| IAC | Oregon/Idaho/Utah/Washington | Regence BCBS | POS, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IAD | Indiana | Anthem BCBS of Indiana | EPO, Traditional Indemnity, PPO |
| IAE | Michigan | BCBS of Michigan | Medicare Advantage, HMO, POS |
| IAF | New York | BCBS of Western New York | High-Deductible Health Plan (HDHP), Medicaid, EPO |
| IAG | Virginia | Anthem BCBS of Virginia | Traditional Indemnity, PPO, HMO |
| IAH | South Dakota/Iowa | Wellmark BCBS | Medicaid, High-Deductible Health Plan (HDHP), POS |
| IAI | South Carolina | BCBS of South Carolina | PPO, EPO, Medicare Advantage |
| IAJ | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| IAK | California | Blue-Shield of California | EPO, POS, Medicaid |
| IAL | South Dakota/Iowa | Wellmark BCBS | Medicare Advantage, PPO, High-Deductible Health Plan (HDHP) |
| IAM | California | Blue-Shield of California | Traditional Indemnity, HMO, EPO |
| IAO | New York | BCBS of Western New York | High-Deductible Health Plan (HDHP), Medicaid, POS |
| IAP | South Dakota/Iowa | Wellmark BCBS | PPO, Medicare Advantage, Traditional Indemnity |
| IAQ | Nebraska | BCBS of Nebraska | EPO, High-Deductible Health Plan (HDHP), HMO |
| IAR | Alabama | BCBS of Alabama | Medicaid, POS, PPO |
| IAS | Massachusetts | BCBS of Massachusetts | High-Deductible Health Plan (HDHP), Traditional Indemnity, EPO |
| IAT | New York | Empire BCBS of New York | Medicare Advantage, HMO, PPO |
| IAU | Nebraska | BCBS of Nebraska | POS, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| IAV | South Dakota/Iowa | Wellmark BCBS | EPO, PPO, Medicaid |
| IAW | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), HMO, Medicare Advantage |
| IAX | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, POS, EPO |
| IAY | South Carolina | BCBS of South Carolina | Medicaid, PPO, High-Deductible Health Plan (HDHP) |
| IAZ | South Dakota/Iowa | Wellmark BCBS | Medicare Advantage, EPO, HMO |
| IBA | Illinois | BCBS of Illinois | Traditional Indemnity, High-Deductible Health Plan (HDHP), POS |
| IBB | New Jersey | Horizon BCBS of New Jersey | PPO, Medicaid, EPO |
| IBC | Wisconsin | Anthem BCBS of Wisconsin | HMO, Medicare Advantage, Traditional Indemnity |
| IBD | Wisconsin | Anthem BCBS of Wisconsin | High-Deductible Health Plan (HDHP), POS, PPO |
| IBE | Illinois | BCBS of Illinois | EPO, Traditional Indemnity, Medicaid |
| IBF | South Dakota/Iowa | Wellmark BCBS | Medicare Advantage, HMO, High-Deductible Health Plan (HDHP) |
| IBG | Illinois | BCBS of Illinois | POS, PPO, Traditional Indemnity |
| IBH | Alabama | BCBS of Alabama | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IBI | South Dakota/Iowa | Wellmark BCBS | PPO, HMO, Medicare Advantage |
| IBJ | Michigan | BCBS of Michigan | Traditional Indemnity, High-Deductible Health Plan (HDHP), POS |
| IBK | Georgia | Anthem BCBS of Georgia | Medicaid, EPO, PPO |
| IBL | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Medicare Advantage, HMO, High-Deductible Health Plan (HDHP) |
| IBM | California | Blue-Shield of California | Traditional Indemnity, POS, EPO |
| IBO | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | High-Deductible Health Plan (HDHP), PPO, HMO |
| IBP | South Dakota/Iowa | Wellmark BCBS | Medicaid, Traditional Indemnity, Medicare Advantage |
| IBQ | Oregon/Idaho/Utah/Washington | Regence BCBS | POS, EPO, High-Deductible Health Plan (HDHP) |
| IBR | Michigan | BCBS of Michigan | PPO, HMO, Traditional Indemnity |
| IBS | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), Medicaid, POS |
| IBT | Illinois | BCBS of Illinois | Medicare Advantage, PPO, EPO |
| IBU | Alabama | BCBS of Alabama | EPO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| IBV | Massachusetts | BCBS of Massachusetts | HMO, POS, Medicare Advantage |
| IBW | Illinois | BCBS of Illinois | Traditional Indemnity, Medicaid, PPO |
| IBX | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), EPO, HMO |
| IBZ | Oregon/Idaho/Utah/Washington | Regence BCBS | PPO, Traditional Indemnity, Medicare Advantage |
| ICA | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| ICB | Illinois | BCBS of Illinois | POS, PPO, HMO |
| ICC | Colorado | Anthem BCBS of Colorado | Medicaid, Traditional Indemnity, EPO |
| ICD | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), Medicare Advantage, PPO |
| ICE | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | HMO, POS, Traditional Indemnity |
| ICF | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, EPO, Medicaid |
| ICG | Louisiana | BCBS of Louisiana | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| ICH | Virginia | Anthem BCBS of Virginia | POS, Medicare Advantage, PPO |
| ICI | South Carolina | BCBS of South Carolina | EPO, Medicaid, High-Deductible Health Plan (HDHP) |
| ICJ | Georgia | Anthem BCBS of Georgia | Traditional Indemnity, HMO, Medicare Advantage |
| ICK | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, POS, High-Deductible Health Plan (HDHP) |
| ICL | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), EPO, Traditional Indemnity |
| ICM | California | Blue-Shield of California | Medicaid, Medicare Advantage, HMO |
| ICN | Georgia | Anthem BCBS of Georgia | EPO, POS, PPO |
| ICO | North Carolina | BCBS of North Carolina | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicaid |
| ICP | Georgia | Anthem BCBS of Georgia | Medicare Advantage, PPO, EPO |
| ICQ | Virginia | Anthem BCBS of Virginia | High-Deductible Health Plan (HDHP), HMO, Traditional Indemnity |
| ICR | Ohio | Anthem BCBS of Ohio | POS, Medicaid, PPO |
| ICS | Missouri | Anthem BCBS of Missouri | EPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| ICT | New York (Western) | BCBS of Western New York | Traditional Indemnity, PPO, HMO |
| ICU | Oregon/Idaho/Utah/Washington | Regence BCBS | High-Deductible Health Plan (HDHP), EPO, POS |
| ICV | Michigan | BCBS of Michigan | Medicaid, Medicare Advantage, Traditional Indemnity |
| ICW | Massachusetts | BCBS of Massachusetts | PPO, High-Deductible Health Plan (HDHP), EPO |
| ICX | Wisconsin | Anthem BCBS of Wisconsin | Traditional Indemnity, HMO, Medicare Advantage |
| ICY | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), POS, PPO |
| ICZ | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | EPO, Medicaid, Traditional Indemnity |
| IDA | Idaho | Blue-Cross of Idaho | POS, PPO, High-Deductible Health Plan (HDHP) |
| IDB | Florida | Florida-Blue | Medicaid, Medicare Advantage, HMO |
| IDC | California | Blue Cross of California | Traditional Indemnity, EPO, POS |
| IDD | Virginia | Anthem BCBS of Virginia | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| IDE | Idaho | Blue-Cross of Idaho | HMO, Traditional Indemnity, EPO |
| IDF | Idaho | Blue-Cross of Idaho | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IDG | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | EPO, Medicare Advantage, POS |
| IDH | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| IDI | California | Blue-Shield of California | Medicaid, POS, PPO |
| IDJ | Virginia | Anthem BCBS of Virginia | Medicare Advantage, HMO, Traditional Indemnity |
| IDK | New York | Empire BCBS of New York | High-Deductible Health Plan (HDHP), EPO, PPO |
| IDL | Idaho | Blue-Cross of Idaho | Traditional Indemnity, Medicaid, POS |
| IDM | Idaho | Blue-Cross of Idaho | HMO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IDN | Idaho | Blue-Cross of Idaho | EPO, PPO, Traditional Indemnity |
| IDO | Kansas | BCBS of Kansas | Medicaid, High-Deductible Health Plan (HDHP), EPO |
| IDP | Idaho | Blue-Cross of Idaho | Traditional Indemnity, POS, HMO |
| IDQ | Virginia | Anthem BCBS of Virginia | Medicare Advantage, PPO, High-Deductible Health Plan (HDHP) |
| IDR | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IDS | Kansas City | BCBS of Kansas City | HMO, Traditional Indemnity, POS |
| IDT | Virginia | Anthem BCBS of Virginia | EPO, Medicare Advantage, PPO |
| IDU | Louisiana | BCBS of Louisiana | High-Deductible Health Plan (HDHP), Medicaid, Traditional Indemnity |
| IDV | Idaho | Blue Cross of Idaho | PPO, POS, High-Deductible Health Plan (HDHP) |
| IDX | Illinois | BCBS of Illinois | Traditional Indemnity, Medicare Advantage, HMO |
| IDY | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), EPO, PPO |
| IDZ | South Dakota/Iowa | Wellmark BCBS | Medicaid, POS, Medicare Advantage |
| IEA | Oregon/Idaho/Utah/Washington | Regence BCBS | HMO, EPO, Traditional Indemnity |
| IEB | Indiana | Anthem BCBS of Indiana | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IEC | California | Blue-Shield of California | POS, Medicare Advantage, Traditional Indemnity |
| IED | Indiana | Anthem BCBS of Indiana | EPO, High-Deductible Health Plan (HDHP), PPO |
| IEF | Massachusetts | BCBS of Massachusetts | Medicare Advantage, HMO, Medicaid |
| IEG | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Traditional Indemnity, POS, High-Deductible Health Plan (HDHP) |
| IEH | Alaska | Premera BCBS of Alaska | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IEI | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | PPO, Traditional Indemnity, Medicare Advantage |
| IEJ | South Carolina | BCBS of South Carolina | HMO, High-Deductible Health Plan (HDHP), EPO |
| IEK | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicaid, POS, PPO |
| IEL | Illinois | BCBS of Illinois | EPO, Medicare Advantage, Traditional Indemnity |
| IEM | New York | Blue Shield of Northeastern New York | High-Deductible Health Plan (HDHP), HMO, POS |
| IEN | New York | Blue Cross of California | PPO, Medicaid, EPO |
| IEO | North Carolina | BCBS of North Carolina | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IEP | Louisiana | BCBS of Louisiana | POS, HMO, PPO |
| IEQ | New York | Empire BCBS of New York | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IER | Virginia | Anthem BCBS of Virginia | Medicare Advantage, Traditional Indemnity, POS |
| IES | Texas | BCBS of Texas | HMO, PPO, High-Deductible Health Plan (HDHP) |
| IET | Connecticut | Anthem BCBS of Connecticut | EPO, Medicaid, Traditional Indemnity |
| IEU | Louisiana | BCBS of Louisiana | High-Deductible Health Plan (HDHP), POS, PPO |
| IEV | Alabama | BCBS of Alabama | Medicare Advantage, HMO, EPO |
| IEW | Illinois | BCBS of Illinois | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicaid |
| IEX | Michigan | BCBS of Michigan | PPO, POS, Medicare Advantage |
| IEY | South Carolina | BCBS of South Carolina | HMO, EPO, High-Deductible Health Plan (HDHP) |
| IEZ | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicaid, Traditional Indemnity, PPO |
| IFA | Georgia | Anthem BCBS of Georgia | Medicare Advantage, POS, EPO |
| IFB | South Dakota/Iowa | Wellmark BCBS | HMO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| IFC | New York (Western) | BCBS of Western New York | PPO, Medicaid, POS |
| IFD | Oregon/Idaho/Utah/Washington | Regence BCBS | EPO, Medicare Advantage, Traditional Indemnity |
| IFE | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| IFF | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, HMO, EPO |
| IFH | Pennsylvania | Highmark BCBS of Pennsylvania | POS, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IFI | Pennsylvania | Highmark BCBS of Pennsylvania | Medicaid, PPO, Traditional Indemnity |
| IFJ | Pennsylvania | Highmark BCBS of Pennsylvania | HMO, EPO, High-Deductible Health Plan (HDHP) |
| IFK | Pennsylvania | Highmark BCBS of Pennsylvania | Medicare Advantage, POS, PPO |
| IFL | Oregon/Idaho/Utah/Washington | Regence BCBS | EPO, Traditional Indemnity, Medicaid |
| IFM | California | Blue Cross of California | High-Deductible Health Plan (HDHP), HMO, POS |
| IFN | Pennsylvania | Highmark BCBS of Pennsylvania | PPO, Medicare Advantage, EPO |
| IFO | Pennsylvania | Highmark BCBS of Pennsylvania | Traditional Indemnity, High-Deductible Health Plan (HDHP), HMO |
| IFP | Nevada | Anthem BCBS of Nevada | Medicaid, POS, High-Deductible Health Plan (HDHP) |
| IFQ | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicare Advantage, PPO, Traditional Indemnity |
| IFR | Kentucky | Anthem BCBS of Kentucky | EPO, HMO, Medicaid |
| IFS | Kansas City | BCBS of Kansas City | High-Deductible Health Plan (HDHP), POS, PPO |
| IFT | Pennsylvania | Highmark BCBS of Pennsylvania | HMO, Traditional Indemnity, Medicare Advantage |
| IFU | Pennsylvania | Highmark BCBS of Pennsylvania | PPO, EPO, High-Deductible Health Plan (HDHP) |
| IFV | Pennsylvania | Highmark BCBS of Pennsylvania | Medicaid, Traditional Indemnity, POS |
| IFW | Pennsylvania | Highmark BCBS of Pennsylvania | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IFX | Ohio | Anthem BCBS of Ohio | HMO, PPO, Traditional Indemnity |
| IFY | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | POS, Medicaid, High-Deductible Health Plan (HDHP) |
| IFZ | South Carolina | BCBS of South Carolina | PPO, Medicare Advantage, EPO |
| IGA | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, HMO, POS |
| IGB | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| IGC | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | HMO, EPO, Traditional Indemnity |
| IGD | South Dakota/Iowa | Wellmark BCBS | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IGE | Alabama | BCBS of Alabama | POS, Medicare Advantage, Traditional Indemnity |
| IGF | California | Blue-Shield of California | EPO, High-Deductible Health Plan (HDHP), PPO |
| IGG | California | Blue-Shield of California | Medicare Advantage, HMO, Medicaid |
| IGH | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, POS, High-Deductible Health Plan (HDHP) |
| IGI | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IGJ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | PPO, Traditional Indemnity, Medicare Advantage |
| IGK | Pennsylvania | Highmark BCBS of Pennsylvania | HMO, High-Deductible Health Plan (HDHP), EPO |
| IGL | Pennsylvania | Highmark BCBS of Pennsylvania | Medicaid, POS, PPO |
| IGM | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | EPO, Medicare Advantage, Traditional Indemnity |
| IGN | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), HMO, POS |
| IGO | New York (Western) | BCBS of Western New York | PPO, Medicaid, EPO |
| IGP | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IGQ | Pennsylvania | Highmark BCBS of Pennsylvania | POS, HMO, PPO |
| IGR | New York | Empire BCBS | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IGS | Alabama | BCBS of Alabama | Medicare Advantage, Traditional Indemnity, POS |
| IGT | California | Blue Shield of California | HMO, PPO, High-Deductible Health Plan (HDHP) |
| IGU | Louisiana | BCBS of Louisiana | EPO, Medicaid, Traditional Indemnity |
| IGV | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), POS, PPO |
| IGW | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicare Advantage, HMO, EPO |
| IGX | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicaid |
| IGY | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, POS, Medicare Advantage |
| IGZ | Pennsylvania | Highmark BCBS of Pennsylvania | HMO, EPO, High-Deductible Health Plan (HDHP) |
| IHA | California | Blue Shield of California | Medicaid, Traditional Indemnity, PPO |
| IHB | South Dakota/Iowa | Wellmark BCBS | Medicare Advantage, POS, EPO |
| IHC | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | HMO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| IHD | Nebraska | BCBS of Nebraska | PPO, Medicaid, POS |
| IHE | Ohio | Anthem BCBS of Ohio | EPO, Medicare Advantage, Traditional Indemnity |
| IHF | New York | Empire BCBS of New York | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| IHG | Georgia | Anthem BCBS of Georgia | Traditional Indemnity, HMO, EPO |
| IHH | Alabama | BCBS of Alabama | POS, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IHI | Pennsylvania | Highmark BCBS of Pennsylvania | Medicaid, PPO, Traditional Indemnity |
| IHJ | New York | Empire BCBS of New York | HMO, EPO, High-Deductible Health Plan (HDHP) |
| IHK | Pennsylvania | Highmark BCBS of Pennsylvania | Medicare Advantage, POS, PPO |
| IHL | West Virginia | Highmark BCBS of West Virginia | EPO, Traditional Indemnity, Medicaid |
| IHM | Delaware | Highmark BCBS of Delaware | High-Deductible Health Plan (HDHP), HMO, POS |
| IHN | California | Blue-Shield of California | PPO, Medicare Advantage, EPO |
| IHO | Louisiana | BCBS of Louisiana | Traditional Indemnity, High-Deductible Health Plan (HDHP), HMO |
| IHP | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Medicaid, POS, High-Deductible Health Plan (HDHP) |
| IHQ | Louisiana | BCBS of Louisiana | Medicare Advantage, PPO, Traditional Indemnity |
| IHR | California | Blue-Shield of California | EPO, HMO, Medicaid |
| IHS | Massachusetts | BCBS of Massachusetts | High-Deductible Health Plan (HDHP), POS, PPO |
| IHT | Alabama | BCBS of Alabama | HMO, Traditional Indemnity, Medicare Advantage |
| IHV | Georgia | Anthem BCBS of Georgia | PPO, EPO, High-Deductible Health Plan (HDHP) |
| IHW | California | Blue-Shield of California | Medicaid, Traditional Indemnity, POS |
| IHX | Colorado | Anthem BCBS of Colorado | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IHY | Georgia | Anthem BCBS of Georgia | HMO, PPO, Traditional Indemnity |
| IHZ | Georgia | Anthem BCBS of Georgia | POS, Medicaid, High-Deductible Health Plan (HDHP) |
| IIA | California | Blue-Shield of California | HMO, Traditional Indemnity, PPO |
| IIB | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IIC | New Jersey | Horizon BCBS of New Jersey | POS, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IID | Idaho | Blue-Cross of Idaho | EPO, Traditional Indemnity, POS |
| IIE | Pennsylvania | Highmark BCBS of Pennsylvania | Medicare Advantage, PPO, Medicaid |
| IIF | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), HMO, EPO |
| IIG | Pennsylvania | Highmark BCBS of Pennsylvania | Traditional Indemnity, Medicaid, PPO |
| IIH | Oregon/Idaho/Utah/Washington | Regence BCBS | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| III | Tennessee | BCBS of Tennessee | PPO, Traditional Indemnity, HMO |
| IIJ | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), POS, EPO |
| IIK | Pennsylvania | Highmark BCBS of Pennsylvania | Medicaid, PPO, Medicare Advantage |
| IIL | Pennsylvania | Highmark BCBS of Pennsylvania | EPO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| IIM | Pennsylvania | Highmark BCBS of Pennsylvania | POS, HMO, Medicaid |
| IIN | Massachusetts | BCBS of Massachusetts | Medicare Advantage, EPO, PPO |
| IIP | New York (Western) | BCBS of Western New York | High-Deductible Health Plan (HDHP), Traditional Indemnity, POS |
| IIQ | South Carolina | BCBS of South Carolina | Medicaid, HMO, High-Deductible Health Plan (HDHP) |
| IIR | South Carolina | BCBS of South Carolina | EPO, PPO, Traditional Indemnity |
| IIS | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), POS, Medicare Advantage |
| IIT | Illinois | BCBS of Illinois | Traditional Indemnity, HMO, EPO |
| IIU | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | PPO, High-Deductible Health Plan (HDHP), Medicaid |
| IIV | Florida | Florida-Blue | POS, Medicare Advantage, Traditional Indemnity |
| IIW | California | Blue-Shield of California | Medicaid, EPO, PPO |
| IIX | Idaho | Blue-Cross of Idaho | High-Deductible Health Plan (HDHP), HMO, Traditional Indemnity |
| IIY | South Carolina | BCBS of South Carolina | EPO, POS, Medicare Advantage |
| IIZ | South Carolina | BCBS of South Carolina | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| IJA | Wisconsin | Anthem BCBS of Wisconsin | HMO, Medicaid, EPO |
| IJB | Kentucky | Anthem BCBS of Kentucky | High-Deductible Health Plan (HDHP), POS, Traditional Indemnity |
| IJC | South Carolina | BCBS of South Carolina | PPO, EPO, Medicaid |
| IJD | New Hampshire | Anthem BCBS of New Hampshire | Medicare Advantage, HMO, High-Deductible Health Plan (HDHP) |
| IJE | New York (Western) | BCBS of Western New York | Traditional Indemnity, PPO, EPO |
| IJF | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), Medicaid, POS |
| IJG | Georgia | Anthem BCBS of Georgia | EPO, Medicare Advantage, HMO |
| IJH | Georgia | Anthem BCBS of Georgia | PPO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| IJI | Georgia | Anthem BCBS of Georgia | Medicaid, POS, EPO |
| IJJ | Georgia | Anthem BCBS of Georgia | Medicare Advantage, PPO, High-Deductible Health Plan (HDHP) |
| IJK | Georgia | Anthem BCBS of Georgia | HMO, Traditional Indemnity, EPO |
| IJL | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| IJM | South Carolina | BCBS of South Carolina | POS, EPO, Medicare Advantage |
| IJN | South Carolina | BCBS of South Carolina | Traditional Indemnity, PPO, HMO |
| IJO | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), POS, Medicaid |
| IJP | South Carolina | BCBS of South Carolina | PPO, Medicare Advantage, Traditional Indemnity |
| IJQ | Georgia | Anthem BCBS of Georgia | EPO, HMO, High-Deductible Health Plan (HDHP) |
| IJR | Idaho | Blue-Cross of Idaho | Medicaid, PPO, POS |
| IJS | Wisconsin | Anthem BCBS of Wisconsin | High-Deductible Health Plan (HDHP), Traditional Indemnity, EPO |
| IJT | Georgia | Anthem BCBS of Georgia | Medicare Advantage, POS, PPO |
| IJU | Texas | BCBS of Texas | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| IJV | Georgia | Anthem BCBS of Georgia | Traditional Indemnity, HMO, EPO |
| IJW | New Jersey | Horizon BCBS of New Jersey | PPO, High-Deductible Health Plan (HDHP), POS |
| IJX | Georgia | Anthem BCBS of Georgia | Medicaid, Traditional Indemnity, Medicare Advantage |
| IJY | Pennsylvania | Capital Blue-Cross of Pennsylvania | High-Deductible Health Plan (HDHP), PPO, HMO |
| IJZ | South Carolina | BCBS of South Carolina | EPO, Medicare Advantage, POS |
| IKA | Kentucky | Anthem BCBS of Kentucky | Traditional Indemnity, PPO, Medicaid |
| IKB | Virginia | Anthem BCBS of Virginia | High-Deductible Health Plan (HDHP), POS, Traditional Indemnity |
| IKC | Virginia | Anthem BCBS of Virginia | PPO, EPO, HMO |
| IKD | South Dakota/Iowa | Wellmark BCBS | Medicare Advantage, High-Deductible Health Plan (HDHP), Medicaid |
| IKE | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, POS, PPO |
| IKF | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | EPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IKG | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), Medicaid, EPO |
| IKH | South Dakota/Iowa | Wellmark BCBS | PPO, Traditional Indemnity, HMO |
| IKI | South Carolina | BCBS of South Carolina | Medicaid, POS, High-Deductible Health Plan (HDHP) |
| IKJ | South Carolina | BCBS of South Carolina | Medicare Advantage, PPO, EPO |
| IKK | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Traditional Indemnity, POS |
| IKL | Virginia | Anthem BCBS of Virginia | HMO, EPO, PPO |
| IKM | Pennsylvania | Independence Blue Cross FOC | POS, Medicare Advantage, Traditional Indemnity |
| IKO | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| IKQ | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, HMO, EPO |
| IKR | Missouri | Anthem BCBS of Missouri | Medicaid, High-Deductible Health Plan (HDHP), POS |
| IKS | California | Blue-Shield of California | PPO, EPO, Medicare Advantage |
| IKT | Kentucky | Anthem BCBS of Kentucky | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| IKU | Georgia | Anthem BCBS of Georgia | EPO, POS, Medicaid |
| IKV | Michigan | BCBS of Michigan | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| IKW | Georgia | Anthem BCBS of Georgia | Medicare Advantage, HMO, EPO |
| IKX | Michigan | BCBS of Michigan | Medicaid, POS, Traditional Indemnity |
| IKY | Nebraska | BCBS of Nebraska | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| ILA | New York | Empire BCBS of New York | High-Deductible Health Plan (HDHP), EPO, HMO |
| ILB | Massachusetts | BCBS of Massachusetts | Traditional Indemnity, Medicaid, PPO |
| ILC | South Dakota/Iowa | Wellmark BCBS | Medicare Advantage, POS, EPO |
| ILD | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, Traditional Indemnity |
| ILE | South Dakota/Iowa | Wellmark BCBS | PPO, EPO, Medicaid |
| ILF | Alabama | BCBS of Alabama | HMO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| ILG | California | Blue-Shield of California | Medicare Advantage, POS, PPO |
| ILH | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), Traditional Indemnity, EPO |
| ILI | California | Blue Shield of California | Medicaid, HMO, Medicare Advantage |
| ILJ | Wisconsin | Anthem BCBS of Wisconsin | POS, PPO, High-Deductible Health Plan (HDHP) |
| ILK | Oregon/Idaho/Utah/Washington | Regence BCBS | Traditional Indemnity, Medicaid, EPO |
| ILL | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| ILM | California | Blue Shield of California | HMO, POS, Traditional Indemnity |
| ILN | Tennessee | BCBS of Tennessee Commercial | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| ILO | Wisconsin | Anthem BCBS of Wisconsin | Medicare Advantage, Traditional Indemnity, EPO |
| ILP | Kansas City | BCBS of Kansas City | POS, High-Deductible Health Plan (HDHP), HMO |
| ILQ | California | Blue Cross of California | Medicaid, EPO, PPO |
| ILS | Alaska | Premera BCBS of Alaska | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| ILT | Illinois | BCBS of Illinois | Traditional Indemnity, PPO, HMO |
| ILU | California | Blue Shield of California | Medicare Advantage, EPO, High-Deductible Health Plan (HDHP) |
| ILV | Alabama | BCBS of Alabama | PPO, Traditional Indemnity, Medicaid |
| ILW | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), POS, PPO |
| ILX | Alabama | BCBS of Alabama | EPO, HMO, Traditional Indemnity |
| ILY | California | Anthem Blue-Cross | Medicaid, High-Deductible Health Plan (HDHP), Medicare Advantage |
| ILZ | Michigan | BCBS of Michigan | POS, PPO, EPO |
| IMA | New York | Excellus BCBS of New York | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| IMB | Massachusetts | BCBS of Massachusetts | Medicaid, Medicare Advantage, POS |
| IMC | Virginia | Anthem BCBS of Virginia | PPO, EPO, High-Deductible Health Plan (HDHP) |
| IME | Pennsylvania | Highmark BCBS of Pennsylvania | Traditional Indemnity, HMO, Medicaid |
| IMF | Oregon/Idaho/Utah/Washington | Regence BCBS | High-Deductible Health Plan (HDHP), POS, Medicare Advantage |
| IMG | Oregon/Idaho/Utah/Washington | Regence BCBS | HMO, PPO, Traditional Indemnity |
| IMH | Colorado | Anthem BCBS of Colorado | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IMI | South Dakota/Iowa | Wellmark BCBS | POS, Medicare Advantage, Traditional Indemnity |
| IMJ | Missouri | Anthem BCBS of Missouri | EPO, High-Deductible Health Plan (HDHP), PPO |
| IMK | Maine | Anthem BCBS of Maine | Medicare Advantage, Medicaid, HMO |
| IMM | New York (Western) | BCBS of Western New York | Traditional Indemnity, POS, High-Deductible Health Plan (HDHP) |
| IMO | California | Blue Cross of California | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IMP | Alabama | BCBS of Alabama | PPO, Medicare Advantage, Traditional Indemnity |
| IMQ | Tennessee | BCBS of Tennessee | HMO, High-Deductible Health Plan (HDHP), EPO |
| IMR | Alabama | BCBS of Alabama | Medicaid, POS, PPO |
| IMS | Kentucky | Anthem BCBS of Kentucky | EPO, Traditional Indemnity, Medicare Advantage |
| IMT | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), HMO, POS |
| IMU | Louisiana | BCBS of Louisiana | PPO, Medicaid, EPO |
| IMV | Massachusetts | BCBS of Massachusetts | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IMW | Ohio | Anthem BCBS of Ohio | POS, HMO, PPO |
| IMX | Missouri | Anthem BCBS of Missouri | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IMY | South Carolina | BCBS of South Carolina | Medicare Advantage, Traditional Indemnity, POS |
| IMZ | South Dakota/Iowa | Wellmark BCBS | HMO, PPO, High-Deductible Health Plan (HDHP) |
| INA | Kentucky | Anthem BCBS of Kentucky | EPO, Medicaid, Traditional Indemnity |
| INB | Alaska | Premera Blue-Cross of Alaska | High-Deductible Health Plan (HDHP), POS, PPO |
| INC | California | Anthem Blue-Cross | Medicare Advantage, HMO, EPO |
| IND | North Carolina | BCBS of North Carolina | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicaid |
| INE | South Carolina | BCBS of South Carolina | PPO, POS, Medicare Advantage |
| INF | California | Blue Shield of California | HMO, EPO, High-Deductible Health Plan (HDHP) |
| ING | Ohio | Anthem BCBS of Ohio | Medicaid, Traditional Indemnity, PPO |
| INI | Pennsylvania | Highmark BCBS of Pennsylvania | Medicare Advantage, POS, EPO |
| INJ | Kentucky | Anthem BCBS of Kentucky | High-Deductible Health Plan (HDHP), HMO, Traditional Indemnity |
| INK | California | Anthem Blue-Cross | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| INL | Tennessee | BCBS of Tennessee | EPO, Medicare Advantage, POS |
| INN | Nebraska | BCBS of Nebraska | Traditional Indemnity, HMO, EPO |
| INO | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), POS, PPO |
| INP | North Carolina | BCBS of North Carolina | Medicare Advantage, Medicaid, HMO |
| INQ | Oregon/Idaho/Utah/Washington | Regence BCBS | Traditional Indemnity, EPO, POS |
| INR | Indiana | Anthem BCBS of Indiana | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| INS | South Dakota/Iowa | Wellmark BCBS | HMO, Traditional Indemnity, Medicaid |
| INT | Virginia | Anthem BCBS of Virginia | EPO, High-Deductible Health Plan (HDHP), POS |
| INU | South Carolina | BCBS of South Carolina | Medicaid, Medicare Advantage, PPO |
| INV | South Carolina | BCBS of South Carolina | Traditional Indemnity, HMO, EPO |
| INW | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | High-Deductible Health Plan (HDHP), POS, PPO |
| INX | North Carolina | BCBS of North Carolina | Medicare Advantage, EPO, Traditional Indemnity |
| INY | California | Anthem Blue-Cross | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| INZ | California | Blue-Shield of California | HMO, POS, Medicare Advantage |
| IOA | Arizona | BCBS of Arizona | EPO, Traditional Indemnity, HMO |
| IOB | Tennessee | BCBS of Tennessee | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| IOC | California | Blue-Shield of California | Medicare Advantage, POS, EPO |
| IOD | Michigan | BCBS of Michigan | Traditional Indemnity, HMO, High-Deductible Health Plan (HDHP) |
| IOE | New York | Empire BCBS of New York | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IOF | California | Blue-Shield of California | HMO, Medicare Advantage, Traditional Indemnity |
| IOG | New York (Northeastern) | Blue-Shield of Northeastern New York | EPO, POS, High-Deductible Health Plan (HDHP) |
| IOI | Michigan | BCBS of Michigan | Medicaid, PPO, Traditional Indemnity |
| IOJ | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, EPO |
| IOK | Virginia | Anthem BCBS of Virginia | Medicare Advantage, POS, PPO |
| IOL | Michigan | BCBS of Michigan | EPO, Traditional Indemnity, Medicaid |
| IOM | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| ION | Florida | BCBS of Florida | HMO, POS, Traditional Indemnity |
| IOO | Michigan | BCBS of Michigan | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IOP | New York (Western) | BCBS of Western New York | Medicare Advantage, EPO, HMO |
| IOQ | Michigan | BCBS of Michigan | POS, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| IOR | South Carolina | BCBS of South Carolina | Medicaid, PPO, EPO |
| IOS | North Carolina | BCBS of North Carolina | High-Deductible Health Plan (HDHP), HMO, Medicare Advantage |
| IOT | Pennsylvania | Highmark BCBS of Pennsylvania | EPO, POS, Traditional Indemnity |
| IOU | Louisiana | BCBS of Louisiana | PPO, High-Deductible Health Plan (HDHP), Medicaid |
| IOV | South Carolina | BCBS of South Carolina | Traditional Indemnity, Medicare Advantage, HMO |
| IOX | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), EPO, POS |
| IOY | South Carolina | BCBS of South Carolina | Medicare Advantage, PPO, Traditional Indemnity |
| IOZ | California | Blue-Shield of California | HMO, High-Deductible Health Plan (HDHP), Medicaid |
| IPA | Virginia | Anthem BCBS of Virginia | EPO, POS, PPO |
| IPB | Pennsylvania | Highmark BCBS of Pennsylvania | Traditional Indemnity, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IPD | Pennsylvania | Highmark BCBS of Pennsylvania | PPO, Medicaid, EPO |
| IPE | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), HMO, Traditional Indemnity |
| IPG | Virginia | Anthem BCBS of Virginia | EPO, Medicare Advantage, POS |
| IPH | Kansas | BCBS of Kansas | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| IPI | Georgia | Anthem BCBS of Georgia | HMO, Medicaid, EPO |
| IPJ | Georgia | Anthem BCBS of Georgia | PPO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| IPK | California | Blue-Shield of California | Medicare Advantage, POS, PPO |
| IPL | Kansas City | BCBS of Kansas City | High-Deductible Health Plan (HDHP), Traditional Indemnity, EPO |
| IPM | Pennsylvania | Highmark BCBS of Pennsylvania | Medicaid, HMO, Medicare Advantage |
| IPN | Pennsylvania | Highmark BCBS of Pennsylvania | POS, PPO, High-Deductible Health Plan (HDHP) |
| IPP | Georgia | Anthem BCBS of Georgia | Traditional Indemnity, Medicaid, EPO |
| IPQ | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| IPR | South Dakota/Iowa | Wellmark BCBS | HMO, POS, Traditional Indemnity |
| IPS | California | Blue-Shield of California | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IPT | Illinois | BCBS of Illinois | Medicare Advantage, Traditional Indemnity, EPO |
| IPU | Idaho | Blue-Cross of Idaho | POS, High-Deductible Health Plan (HDHP), HMO |
| IPV | Michigan | BCBS of Michigan | Medicaid, EPO, PPO |
| IPW | Oregon/Idaho/Utah/Washington | Regence BCBS | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| IPX | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, PPO, HMO |
| IPY | New York (Western) | BCBS of Western New York | Medicare Advantage, EPO, High-Deductible Health Plan (HDHP) |
| IPZ | Rhode Island | BCBS of Rhode Island | PPO, Traditional Indemnity, Medicaid |
| IQA | Washington | Premera Blue Cross | High-Deductible Health Plan (HDHP), POS, PPO |
| IQB | Georgia | Anthem BCBS of Georgia | EPO, HMO, Traditional Indemnity |
| IQC | Pennsylvania | Capital Blue-Cross of Pennsylvania | Medicaid, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IQD | Georgia | Anthem BCBS of Georgia | POS, PPO, EPO |
| IQE | Tennessee | BCBS of Tennessee | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| IQF | Tennessee | BCBS of Tennessee | Medicaid, Medicare Advantage, POS |
| IQG | Indiana | Anthem BCBS of Indiana | PPO, EPO, High-Deductible Health Plan (HDHP) |
| IQH | Kentucky | Anthem BCBS of Kentucky | Traditional Indemnity, HMO, Medicaid |
| IQI | Missouri | Anthem BCBS of Missouri | High-Deductible Health Plan (HDHP), POS, Medicare Advantage |
| IQJ | Virginia | Anthem BCBS of Virginia | HMO, PPO, Traditional Indemnity |
| IQK | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IQL | Georgia | Anthem BCBS of Georgia | POS, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IQM | Georgia | Anthem BCBS of Georgia | EPO, Traditional Indemnity, POS |
| IQN | Louisiana | BCBS of Louisiana | Medicare Advantage, PPO, Medicaid |
| IQO | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), HMO, EPO |
| IQP | Georgia | Anthem BCBS of Georgia | Traditional Indemnity, Medicaid, PPO |
| IQQ | Georgia | Anthem BCBS of Georgia | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IQR | Wisconsin | Anthem BCBS of Wisconsin | PPO, Traditional Indemnity, HMO |
| IQS | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | High-Deductible Health Plan (HDHP), POS, EPO |
| IQT | Ohio | Anthem BCBS of Ohio | Medicaid, PPO, Medicare Advantage |
| IQU | Michigan | BCBS of Michigan | EPO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| IQV | Georgia | Anthem BCBS of Georgia | POS, HMO, Medicaid |
| IQW | Georgia | Anthem BCBS of Georgia | Medicare Advantage, EPO, PPO |
| IQX | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), Traditional Indemnity, POS |
| IQY | South Carolina | BCBS of South Carolina | Medicaid, HMO, High-Deductible Health Plan (HDHP) |
| IQZ | New Jersey | Horizon BCBS of New Jersey | EPO, PPO |
| IRA | New Jersey | Horizon BCBS of New Jersey | PPO, Traditional Indemnity, HMO |
| IRB | Massachusetts | BCBS of Massachusetts | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| IRC | Colorado | Anthem BCBS of Colorado | POS, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IRD | Massachusetts | BCBS of Massachusetts | EPO, Traditional Indemnity, POS |
| IRE | Pennsylvania | Independence Blue Cross FOC | Medicare Advantage, PPO, Medicaid |
| IRF | California | Blue Cross of California | High-Deductible Health Plan (HDHP), HMO, EPO |
| IRG | Louisiana | BCBS of Louisiana | Traditional Indemnity, Medicaid, PPO |
| IRH | Georgia | Anthem BCBS of Georgia | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IRI | Rhode Island | BCBS of Rhode Island | PPO, Traditional Indemnity, HMO |
| IRJ | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), POS, EPO |
| IRK | Alabama | BCBS of Alabama | Medicaid, PPO, Medicare Advantage |
| IRM | Kansas City | BCBS of Kansas City | EPO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| IRO | Ohio | Anthem BCBS of Ohio | POS, HMO, Medicaid |
| IRP | Florida | BCBS of Florida | Medicare Advantage, EPO, PPO |
| IRQ | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), Traditional Indemnity, POS |
| IRR | Ohio | Anthem BCBS of Ohio | Medicaid, HMO, High-Deductible Health Plan (HDHP) |
| IRS | Florida | Florida-Blue | EPO, PPO, Traditional Indemnity |
| IRT | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), POS, Medicare Advantage |
| IRU | Connecticut | Anthem BCBS of Connecticut | Traditional Indemnity, HMO, EPO |
| IRV | Massachusetts | BCBS of Massachusetts | PPO, High-Deductible Health Plan (HDHP), Medicaid |
| IRW | California | Blue-Shield of California | POS, Medicare Advantage, Traditional Indemnity |
| IRX | Massachusetts | BCBS of Massachusetts | Medicaid, EPO, PPO |
| IRY | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | High-Deductible Health Plan (HDHP), HMO, Traditional Indemnity |
| IRZ | California | Anthem Blue-Cross | EPO, POS, Medicare Advantage |
| ISA | Ohio | Anthem BCBS of Ohio | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| ISB | Alaska | Premera BCBS of Alaska | HMO, Medicaid, EPO |
| ISC | New Jersey | Horizon BCBS of New Jersey | High-Deductible Health Plan (HDHP), POS, Traditional Indemnity |
| ISD | Arizona | BCBS of Arizona | PPO, EPO, Medicaid |
| ISE | Virginia | Anthem BCBS of Virginia | Medicare Advantage, HMO, High-Deductible Health Plan (HDHP) |
| ISF | Arizona | BCBS of Arizona | Traditional Indemnity, PPO, EPO |
| ISH | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), Medicaid, POS |
| ISI | California | Blue-Shield of California | EPO, Medicare Advantage, HMO |
| ISJ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | PPO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| ISK | Kentucky | Anthem BCBS of Kentucky | Medicaid, POS, EPO |
| ISL | South Dakota/Iowa | Wellmark BCBS | Medicare Advantage, PPO, High-Deductible Health Plan (HDHP) |
| ISM | Pennsylvania | Highmark BCBS of Pennsylvania | HMO, Traditional Indemnity, EPO |
| ISN | Idaho | Blue-Cross of Idaho | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| ISO | Massachusetts | BCBS of Massachusetts | POS, EPO, Medicare Advantage |
| ISP | Wisconsin | Anthem BCBS of Wisconsin | Traditional Indemnity, PPO, HMO |
| ISQ | Kansas City | BCBS of Kansas City | High-Deductible Health Plan (HDHP), POS, Medicaid |
| ISR | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | PPO, Medicare Advantage, Traditional Indemnity |
| ISS | Missouri | Anthem BCBS of Missouri | EPO, HMO, High-Deductible Health Plan (HDHP) |
| IST | Ohio | Anthem BCBS of Ohio | Medicaid, PPO, POS |
| ISU | Idaho | Blue-Cross of Idaho | High-Deductible Health Plan (HDHP), Traditional Indemnity, EPO |
| ISV | Michigan | BCBS of Michigan | Medicare Advantage, POS, PPO |
| ISW | Idaho | Blue-Cross of Idaho | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| ISX | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, HMO, EPO |
| ISZ | Idaho | Blue-Cross of Idaho | PPO, High-Deductible Health Plan (HDHP), POS |
| ITA | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicaid, Traditional Indemnity, Medicare Advantage |
| ITB | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), PPO, HMO |
| ITC | Massachusetts | BCBS of Massachusetts | EPO, Medicare Advantage, POS |
| ITD | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, PPO, Medicaid |
| ITE | North Carolina | BCBS of North Carolina | High-Deductible Health Plan (HDHP), POS, Traditional Indemnity |
| ITF | Michigan | BCBS of Michigan | PPO, EPO, HMO |
| ITG | Georgia | Anthem BCBS of Georgia | Medicare Advantage, High-Deductible Health Plan (HDHP), Medicaid |
| ITH | Pennsylvania | Capital Blue-Cross of Pennsylvania | Traditional Indemnity, POS, PPO |
| ITI | Georgia | Anthem BCBS of Georgia | EPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| ITJ | Tennessee | BCBS of Tennessee Commercial | High-Deductible Health Plan (HDHP), Medicaid, EPO |
| ITK | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, Traditional Indemnity, HMO |
| ITM | Michigan | BCBS of Michigan | Medicaid, POS, High-Deductible Health Plan (HDHP) |
| ITN | California | Blue Shield of California | Medicare Advantage, PPO, EPO |
| ITO | New York (Northeastern) | Blue-Shield of Northeastern New York | High-Deductible Health Plan (HDHP), Traditional Indemnity, POS |
| ITP | Ohio | Anthem BCBS of Ohio | HMO, EPO, PPO |
| ITQ | South Dakota/Iowa | Wellmark BCBS | POS, Medicare Advantage, Traditional Indemnity |
| ITR | New York | Empire BCBS of New York | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| ITS | Arkansas | Arkansas BCBS | Traditional Indemnity, HMO, EPO |
| ITT | Georgia | Anthem BCBS of Georgia | Medicaid, High-Deductible Health Plan (HDHP), POS |
| ITU | Oregon/Idaho/Utah/Washington | Regence BCBS | PPO, EPO, Medicare Advantage |
| ITV | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| ITW | Illinois | BCBS of Illinois | EPO, POS, Medicaid |
| ITX | Oregon/Idaho/Utah/Washington | Regence BCBS | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| ITY | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Medicare Advantage, HMO, EPO |
| ITZ | Georgia | Anthem BCBS of Georgia | Medicaid, POS, Traditional Indemnity |
| IUA | South Dakota/Iowa | Wellmark BCBS | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IUB | Connecticut | Anthem BCBS of Connecticut | High-Deductible Health Plan (HDHP), EPO, HMO |
| IUC | Ohio | Anthem BCBS of Ohio | Traditional Indemnity, Medicaid, PPO |
| IUE | New York | Empire BCBS of New York | Medicare Advantage, POS, EPO |
| IUF | Missouri | Anthem BCBS of Missouri | High-Deductible Health Plan (HDHP), HMO, Traditional Indemnity |
| IUG | Alaska | Premera BCBS of Alaska | PPO, EPO, Medicaid |
| IUH | Massachusetts | BCBS of Massachusetts | HMO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| IUI | Rhode Island | BCBS of Rhode Island | Medicare Advantage, POS, PPO |
| IUJ | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), Traditional Indemnity, EPO |
| IUK | Louisiana | BCBS of Louisiana | Medicaid, HMO, Medicare Advantage |
| IUL | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | POS, PPO, High-Deductible Health Plan (HDHP) |
| IUM | Massachusetts | BCBS of Massachusetts | Traditional Indemnity, Medicaid, EPO |
| IUO | New York | Empire BCBS of New York | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| IUP | Connecticut | Anthem BCBS of Connecticut | HMO, POS, Traditional Indemnity |
| IUQ | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IUR | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Medicare Advantage, Traditional Indemnity, EPO |
| IUS | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | POS, High-Deductible Health Plan (HDHP), HMO |
| IUT | Ohio | Anthem BCBS of Ohio | Medicaid, EPO, PPO |
| IUV | Oregon/Idaho/Utah/Washington | Regence BCBS | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| IUW | Ohio | Anthem BCBS of Ohio | Traditional Indemnity, PPO, HMO |
| IUX | New York | Empire BCBS | Medicare Advantage, EPO, High-Deductible Health Plan (HDHP) |
| IUY | Georgia | Anthem BCBS of Georgia | PPO, Traditional Indemnity, Medicaid |
| IUZ | New York | Empire BCBS | High-Deductible Health Plan (HDHP), POS, PPO |
| IVB | Michigan | BCBS of Michigan | EPO, HMO, Traditional Indemnity |
| IVC | Kansas City | BCBS of Kansas City | Medicaid, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IVD | Pennsylvania | Highmark BCBS of Pennsylvania | POS, PPO, EPO |
| IVE | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| IVF | Tennessee | BCBS of Tennessee | Medicaid, Medicare Advantage, POS |
| IVG | California | Blue Cross of California | PPO, EPO, High-Deductible Health Plan (HDHP) |
| IVH | Rhode Island | BCBS of Rhode Island | Traditional Indemnity, HMO, Medicaid |
| IVI | Louisiana | BCBS of Louisiana | High-Deductible Health Plan (HDHP), POS, Medicare Advantage |
| IVJ | Wisconsin | Anthem BCBS of Wisconsin | PPO, Medicaid, Traditional Indemnity |
| IVK | Mississippi | BCBS of Mississippi | HMO, High-Deductible Health Plan (HDHP), EPO |
| IVL | South Carolina | BCBS of South Carolina | Medicare Advantage, POS, High-Deductible Health Plan (HDHP) |
| IVM | South Carolina | BCBS of South Carolina | EPO, Traditional Indemnity, PPO |
| IVN | Tennessee | BCBS of Tennessee | High-Deductible Health Plan (HDHP), HMO, Medicaid |
| IVO | New Jersey | Horizon BCBS of New Jersey | Traditional Indemnity, Medicare Advantage, EPO |
| IVP | Michigan | BCBS of Michigan | POS, PPO, High-Deductible Health Plan (HDHP) |
| IVR | Arizona | BCBS of Arizona | HMO, Traditional Indemnity, Medicaid |
| IVS | California | Anthem Blue-Cross | PPO, EPO, Medicare Advantage |
| IVT | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), POS, Traditional Indemnity |
| IVU | South Carolina | BCBS of South Carolina | Medicare Advantage, HMO, PPO |
| IVV | Pennsylvania | Highmark BCBS of Pennsylvania | EPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IVW | Wisconsin | Anthem BCBS of Wisconsin | Traditional Indemnity, POS, HMO |
| IVX | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), PPO, EPO |
| IVY | Rhode Island | BCBS of Rhode Island | Medicaid, Medicare Advantage, Traditional Indemnity |
| IVZ | Indiana | Anthem BCBS of Indiana | PPO, High-Deductible Health Plan (HDHP), POS |
| IWA | Indiana | Anthem BCBS of Indiana | EPO, HMO, Medicaid |
| IWB | Nebraska | BCBS of Nebraska | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicare Advantage |
| IWC | Virginia | Anthem BCBS of Virginia | PPO, POS, EPO |
| IWD | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicaid, HMO, High-Deductible Health Plan (HDHP) |
| IWE | South Dakota/Iowa | Wellmark BCBS | EPO, Medicare Advantage, Traditional Indemnity |
| IWF | New York | Empire BCBS of New York | High-Deductible Health Plan (HDHP), PPO, HMO |
| IWG | New York | Excellus BCBS of New York | Traditional Indemnity, Medicaid, POS |
| IWH | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicare Advantage, EPO, High-Deductible Health Plan (HDHP) |
| IWI | Georgia | Anthem BCBS of Georgia | PPO, Traditional Indemnity, HMO |
| IWJ | Indiana | Anthem BCBS of Indiana | High-Deductible Health Plan (HDHP), Medicaid, EPO |
| IWK | Michigan | BCBS of Michigan | HMO, POS, Medicare Advantage |
| IWL | Georgia | Anthem BCBS of Georgia | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| IWM | New York | Blue Shield of Northeastern New York | EPO, Medicaid, HMO |
| IWN | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| IWO | Missouri | Anthem BCBS of Missouri | PPO, Traditional Indemnity, EPO |
| IWP | Michigan | BCBS of Michigan | Medicaid, High-Deductible Health Plan (HDHP), PPO |
| IWQ | Georgia | Anthem BCBS of Georgia | Medicare Advantage, HMO, Traditional Indemnity |
| IWR | Connecticut | Anthem BCBS of Connecticut | POS, High-Deductible Health Plan (HDHP), EPO |
| IWS | South Dakota/Iowa | Wellmark BCBS | HMO, PPO, Medicaid |
| IWT | Pennsylvania | Capital Blue-Cross of Pennsylvania | Traditional Indemnity, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IWU | Virginia | Anthem BCBS of Virginia | EPO, POS, HMO |
| IWV | Kansas City | BCBS of Kansas City | High-Deductible Health Plan (HDHP), Medicaid, Traditional Indemnity |
| IWW | Massachusetts | BCBS of Massachusetts | PPO, Medicare Advantage, EPO |
| IWX | New York (Western) | BCBS of Western New York | HMO, High-Deductible Health Plan (HDHP), POS |
| IWY | New York | Empire BCBS of New York | Traditional Indemnity, EPO, Medicaid |
| IWZ | Michigan | BCBS of Michigan | PPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IXA | Arkansas | Arkansas BCBS | High-Deductible Health Plan (HDHP), POS, HMO |
| IXB | California | Blue-Shield of California | Traditional Indemnity, PPO, EPO |
| IXC | California | Blue-Shield of California | Medicaid, HMO, Medicare Advantage |
| IXD | California | Blue Cross of Californiacated/Not Assigned | PPO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| IXE | Ohio | Anthem BCBS of Ohio | EPO, Medicaid, High-Deductible Health Plan (HDHP) |
| IXF | Indiana | Anthem BCBS of Indiana | Medicare Advantage, Traditional Indemnity, POS |
| IXG | Indiana | Anthem BCBS of Indiana | High-Deductible Health Plan (HDHP), EPO, HMO |
| IXH | Indiana | Anthem BCBS of Indiana | Traditional Indemnity, PPO, Medicaid |
| IXI | Florida | Florida-Blue | HMO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| IXJ | Indiana | Anthem BCBS of Indiana | EPO, POS, Traditional Indemnity |
| IXK | Ohio | Anthem BCBS of Ohio | Medicaid, High-Deductible Health Plan (HDHP), PPO |
| IXL | California | Blue-Shield of California | Traditional Indemnity, Medicare Advantage, EPO |
| IXM | California | Blue-Shield of California | HMO, POS, High-Deductible Health Plan (HDHP) |
| IXN | Ohio | Anthem BCBS of Ohio | PPO, Medicaid, Traditional Indemnity |
| IXO | California | Blue-Shield of California | Medicare Advantage, High-Deductible Health Plan (HDHP), HMO |
| IXP | Missouri | Anthem BCBS of Missouri | EPO, Traditional Indemnity, POS |
| IXQ | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| IXR | Michigan | BCBS of Michigan | Medicare Advantage, EPO, HMO |
| IXS | Pennsylvania | Independence Blue Cross FOC | POS, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| IXT | California | Blue Cross of California | HMO, Medicaid, PPO |
| IXU | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IXW | Michigan | BCBS of Michigan | PPO, EPO, POS |
| IXX | Ohio | Anthem BCBS of Ohio | Medicaid, HMO, Traditional Indemnity |
| IXY | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| IXZ | Georgia | Anthem BCBS of Georgia | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| IYB | Wisconsin | Anthem BCBS of Wisconsin | EPO, POS, Medicaid |
| IYC | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Medicare Advantage, HMO, PPO |
| IYD | Pennsylvania | Capital Blue-Cross of Pennsylvania | High-Deductible Health Plan (HDHP), Traditional Indemnity, EPO |
| IYE | South Dakota/Iowa | Wellmark BCBS | PPO, Medicare Advantage, POS |
| IYG | Florida | Florida-Blue | HMO, Medicaid, High-Deductible Health Plan (HDHP) |
| IYH | Kentucky | Anthem BCBS of Kentucky | EPO, Traditional Indemnity, PPO |
| IYI | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), POS, Medicaid |
| IYJ | Kansas City | BCBS of Kansas City | Medicare Advantage, HMO, EPO |
| IYK | South Carolina | BCBS of South Carolina | PPO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| IYL | Georgia | Anthem BCBS of Georgia | Medicaid, POS, PPO |
| IYM | Minnesota | BCBS of Minnesota | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicare Advantage |
| IYN | Alaska | Premera Blue-Cross of Alaska | EPO, HMO, Medicaid |
| IYO | Michigan | BCBS of Michigan | HMO, Traditional Indemnity, Medicaid |
| IYP | Colorado | Anthem BCBS of Colorado | PPO, High-Deductible Health Plan (HDHP), EPO |
| IYQ | South Carolina | BCBS of South Carolina | Medicare Advantage, POS, Traditional Indemnity |
| IYR | South Carolina | BCBS of South Carolina | EPO, High-Deductible Health Plan (HDHP), PPO |
| IYS | Rhode Island | BCBS of Rhode Island | High-Deductible Health Plan (HDHP), HMO, Medicare Advantage |
| IYT | Georgia | Anthem BCBS of Georgia | Traditional Indemnity, EPO, Medicaid |
| IYU | Michigan | BCBS of Michigan | POS, PPO, High-Deductible Health Plan (HDHP) |
| IYV | Michigan | BCBS of Michigan | Medicare Advantage, HMO, Traditional Indemnity |
| IYW | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | EPO, High-Deductible Health Plan (HDHP), PPO |
| IYX | Michigan | BCBS of Michigan | Medicaid, POS, Medicare Advantage |
| IYY | Michigan | BCBS of Michigan | Traditional Indemnity, HMO, EPO |
| IYZ | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), Medicaid |
| IZA | Alabama | BCBS of Alabama | HMO, Traditional Indemnity, EPO |
| IZB | Wisconsin | Anthem BCBS of Wisconsin | PPO, High-Deductible Health Plan (HDHP), POS |
| IZD | Georgia | Anthem BCBS of Georgia | Medicare Advantage, EPO, Traditional Indemnity |
| IZE | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| IZF | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, POS, Medicare Advantage |
| IZG | Michigan | BCBS of Michigan | HMO, EPO, High-Deductible Health Plan (HDHP) |
| IZH | Georgia | Anthem BCBS of Georgia | Medicaid, Traditional Indemnity, PPO |
| IZI | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| IZJ | Michigan | BCBS of Michigan | PPO, Traditional Indemnity, HMO |
| IZK | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), Medicaid, POS |
| IZL | Michigan | BCBS of Michigan | EPO, Medicare Advantage, PPO |
| IZM | Michigan | BCBS of Michigan | Traditional Indemnity, High-Deductible Health Plan (HDHP), HMO |
| IZN | Georgia | Anthem BCBS of Georgia | POS, Medicaid, Traditional Indemnity |
| IZO | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), EPO |
| IZP | Idaho | Blue-Cross of Idaho | Medicare Advantage, HMO, POS |
| IZQ | Michigan | BCBS of Michigan | EPO, Traditional Indemnity, PPO |
| IZR | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicaid, Traditional Indemnity |
| IZS | Michigan | BCBS of Michigan | Medicare Advantage, EPO, HMO |
| IZT | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), POS |
| IZU | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, Medicaid, EPO |
| IZV | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| IZW | Michigan | BCBS of Michigan | HMO, POS, Traditional Indemnity |
| IZX | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), Medicaid |
| IZY | Michigan | BCBS of Michigan | EPO, Medicare Advantage, HMO |
| IZZ | California | Anthem Blue Cross of California | Traditional Indemnity, High-Deductible Health Plan (HDHP), POS |
Common I-Series BCBS Prefix Breakdown
Below is a practical explanation of the most Common prefixes within this range, written with billing workflow in mind.
BCBS Prefix IED – Indiana
| BCBS Prefix | BCBS Prefix State | Issuing Company | Plan Type |
|---|---|---|---|
| IED | Indiana | Anthem BCBS of Indiana | EPO, HDHP, PPO |
The BCBS Prefix IED connects with Anthem BCBS of Indiana. When providers encounter this prefix, they should confirm whether the patient holds an EPO, HDHP, or PPO plan.
Since High-Deductible Health Plans require accurate deductible tracking, checking remaining balances before collecting patient responsibility becomes essential. In addition, verifying network participation ensures correct reimbursement for PPO services.
BCBS Prefix IWA – Indiana
| BCBS Prefix | BCBS Prefix State | Issuing Company | Plan Type |
|---|---|---|---|
| IWA | Indiana | Anthem BCBS of Indiana | EPO, HMO, Medicaid |
The BCBS Prefix IWA also belongs to Anthem BCBS of Indiana; however, this prefix may include HMO and Medicaid coverage options.
Because Medicaid billing follows different compliance guidelines, providers must confirm the exact coverage category before submission. Furthermore, HMO plans typically require referrals, so verifying primary care authorization prevents administrative delays.
BCBS Prefix IQU – Michigan
| BCBS Prefix | BCBS Prefix State | Issuing Company | Plan Type |
|---|---|---|---|
| IQU | Michigan | BCBS of Michigan | EPO, Traditional Inde |
The BCBS Prefix IQU maps to BCBS of Michigan and supports EPO, Traditional Indemnity, and HDHP plans.
Traditional Indemnity plans generally offer broader provider flexibility. However, HDHP members may still have unmet deductibles. Therefore, eligibility verification protects both the practice and the patient from unexpected billing confusion.
BCBS Prefix IRA – New Jersey
| BCBS Prefix | BCBS Prefix State | Issuing Company | Plan Type |
|---|---|---|---|
| IRA | New Jersey | Horizon BCBS of New Jersey | PPO, Traditional Indemnity, HMO |
The BCBS Prefix IRA corresponds with Horizon BCBS of New Jersey. It commonly supports PPO, HMO, and Traditional Indemnity structures.
Because New Jersey plans can vary in referral and authorization rules, billing teams should confirm coverage details before submitting high-cost procedures. As a result, the likelihood of post-submission corrections decreases significantly.
BCBS Prefix INE – South Carolina
| BCBS Prefix | BCBS Prefix State | Issuing Company | Plan Type |
|---|---|---|---|
| INE | South Carolina | BCBS of South Carolina | PPO, POS, Medicare Advantage |
The BCBS Prefix INE belongs to BCBS of South Carolina and may include Medicare Advantage benefits alongside PPO and POS coverage.
Since Medicare Advantage plans follow distinct billing requirements, verifying plan type becomes especially important. Additionally, POS structures may require referral documentation, so reviewing eligibility summaries ensures accurate claim entry.
BCBS Prefix ION – Florida
| BCBS Prefix | BCBS Prefix State | Issuing Company | Plan Type |
|---|---|---|---|
| ION | Florida | BCBS of Florida | HMO, POS, Traditional Indemnity |
The BCBS Prefix ION links to BCBS of Florida and typically supports HMO, POS, and Traditional Indemnity plans.
Because Florida HMO coverage may limit specialist access without referral, providers should confirm authorization status before scheduling advanced services. Consequently, correct prefix identification streamlines reimbursement.
BCBS Prefix IES – Texas
| BCBS Prefix | BCBS Prefix State | Issuing Company | Plan Type |
|---|---|---|---|
| IES | Texas | BCBS of Texas | HMO, PPO, HDHP |
The BCBS Prefix IES connects with BCBS of Texas and supports HMO, PPO, and HDHP options.
Since Texas plans often require precise payer ID selection during electronic submission, billing staff should double-check routing details before finalizing the claim. Moreover, reviewing deductible balances prevents patient billing misunderstandings.
BCBS Alpha Prefix ICI – South Carolina
| BCBS Prefix | BCBS Prefix State | Issuing Company | Plan Type |
|---|---|---|---|
| ICI | South Carolina | BCBS of South Carolina | EPO, Medicaid, HDHP |
The BCBS Alpha Prefix ICI maps to BCBS of South Carolina and may include EPO, Medicaid, and HDHP structures.
Because Medicaid billing guidelines differ from commercial plans, confirming coverage classification ensures compliance. Furthermore, HDHP members may carry higher out-of-pocket responsibility, which requires clear patient communication.
Why Accurate I-Series Prefix Verification Matters
Although prefix lookup seems straightforward, incorrect routing remains a common cause of claim delays. For example:
- Claims may reach the wrong BCBS region
- Deductible information may not match eligibility records
- Referral requirements may be overlooked
However, when billing teams consistently verify prefixes during patient intake, they reduce administrative rework and maintain steady cash flow.
Additionally, structured prefix validation supports stronger revenue cycle management practices.
Recommended Workflow for Prefix Confirmation
To maintain billing accuracy:
- Identify the first three letters of the member ID
- Reference the IAA to IZZ lookup table
- Confirm BCBS Prefix State and issuing company
- Verify eligibility and authorization requirements
- Submit the claim using the correct payer ID
As a result, claim acceptance rates improve and follow-up efforts decrease.
FAQs – BCBS Prefix List IAA to IZZ
Q. What does BCBS Prefix List IAA to IZZ include?
A. It covers all BCBS member ID prefixes beginning with the letter I within that range.
Q. Can one state have multiple I-series prefixes?
A. Yes. For example, Indiana includes both IED and IWA.
Q. Why should providers confirm plan type?
A. Because HMO, PPO, EPO, HDHP, and Medicaid plans follow different billing guidelines.
Q. Is prefix verification required for every patient visit?
A. Yes. Plan benefits may change even within the same issuing company.
Conclusion
The BCBS Prefix List IAA to IZZ serves as an essential reference for healthcare providers aiming to maintain accurate claim routing and consistent reimbursement. By verifying the BCBS Prefix State and associated plan structure before submission, billing teams minimize avoidable denials and administrative delays. In addition, a structured prefix-first workflow strengthens overall revenue cycle performance. For organizations seeking to improve claim accuracy and reduce payer-related disruptions, partnering with an experienced medical billing team can help create a more stable and efficient reimbursement process.
