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BCBS prefix XOJ: BCBS of Illinois, Medicare Advantage HMO

The short answerXOJ is a Blue Cross and Blue Shield of Illinois prefix: Medicare Advantage, on the Medicare Advantage HMO, and Blue Medicare Advocate Health network (medicare Advantage). File the claim to your local Blue plan; outside Illinois, BlueCard routes it to BCBS of Illinois by the prefix.

What the XOJ prefix means

Home plan Blue Cross and Blue Shield of Illinois, a division of Health Care Service Corporation (HCSC). Medicare Advantage. 1
Network Medicare Advantage HMO, and Blue Medicare Advocate Health (network code MCA, AJV). Plans: Blue Cross Medicare Advantage Basic (HMO), Basic Plus (HMO-POS) and Premier Plus (HMO-POS), and Blue Medicare Advocate Health (HMO). 1
Who it covers Medicare Advantage. 1
Area The State of Illinois, excluding Champaign and Massac counties (Blue Medicare Advocate Health: Cook, DuPage, Kane, Kendall, Lake, McHenry and Will counties). 1
How the network works BCBS of Illinois says these plans include the same benefits as Original Medicare Part A and B, with a built-in prescription drug benefit. Out of network, a lower level of benefits applies. 1
Where to file In Illinois, to BCBS of Illinois, your local Blue plan. Outside Illinois, ask your local Blue plan before the visit: Medicare Advantage members have their own out-of-area rules. Send the member ID exactly as printed, prefix included. 2
Verify benefits Through your local Blue plan's eligibility tools, or the phone number on the member's card, before the first visit. 2
MNT policy BCBS of Illinois says these plans include the same benefits as Original Medicare Part A and B. Original Medicare covers MNT by a dietitian for diabetes, kidney disease, or a kidney transplant in the last 36 months, with a referral from the doctor. 1 3 See Medicare MNT coverage.

Before a visit with prefix XOJ

  1. Copy the current card, front and back, and enter the member ID exactly as printed, XOJ included.
  2. Verify benefits for 97802 and 97803: through your local Blue plan's eligibility tools, or the phone number on the member's card. Ask whether nutrition counseling is covered, how many visits, whether a referral is needed, and what the member pays.
  3. Outside Illinois, ask your local Blue plan where the claim goes before the visit.

Another prefix? Type it in the lookup above or see every prefix we have. For how BlueCard routes an out-of-state Blue card, see BlueCard for dietitians.

Sources

  1. Blue Cross and Blue Shield of Illinois: Networks and Benefit Plans 2026, Government Programs (PDF)
  2. Blue Cross and Blue Shield of Illinois: BlueCard claims filing (PDF)
  3. Medicare.gov: Medical nutrition therapy services

Sources checked . Payer rules change; verify the member's benefits.

Frequently asked questions

What insurance is prefix XOJ?

Blue Cross and Blue Shield of Illinois. Its 2026 network document lists XOJ for Medicare Advantage HMO, and Blue Medicare Advocate Health, medicare Advantage.

Where do I send a claim with prefix XOJ?

In Illinois, to BCBS of Illinois, your local Blue plan. Outside Illinois, ask your local Blue plan before the visit: Medicare Advantage members have their own out-of-area rules. Send the member ID exactly as printed, prefix included.

Do XOJ plans cover nutrition counseling?

BCBS of Illinois says these plans include the same benefits as Original Medicare Part A and B. Original Medicare covers MNT by a dietitian for diabetes, kidney disease, or a kidney transplant in the last 36 months, with a referral from the doctor. The member's own plan decides, so verify benefits first.

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