OA-22OA group · Coordination of benefits

OA-22 denial code: this care may be covered by another payer

OA-22 is a question about order, not about coverage, and the order is set by rules rather than by preference.

OA-22 fires when the payer has reason to believe another plan is primary. Coordination order follows established rules — employment status, which parent's birthday falls earlier in the year, active versus retiree coverage — and a payer applying them from stale information is the usual cause.

What OA-22 means

Payers learn about other coverage from surveys, from prior claims and from data-sharing services, and that information ages badly. A spouse's plan that ended a year ago can still make a payer think it is secondary. Resolving this usually means updating the coordination record with the member rather than appealing a determination, because no coverage decision has been made.

Why OA-22 fires

  • The payer's coordination record shows other coverage that has ended.
  • Coordination order genuinely places another plan first.
  • A dependent is covered by two parents' plans and the order rule was misapplied.
  • The member did not return a coordination-of-benefits questionnaire.

Is OA-22 worth appealing?

Sometimes worth appealing

Update the coordination record first. Where the order rule was misapplied, name the rule and the fact that decides it — birthday, employment status, or active versus retiree.

How to resolve or appeal OA-22

  1. 1

    Have the member update coordination

    An unreturned questionnaire suspends claims indefinitely and is the single most common cause.

  2. 2

    State the applicable order rule

    Where two plans genuinely exist, the rule and the fact that triggers it settle the order.

OA-22 — frequently asked

What is the birthday rule?
For a dependent covered by two parents, the plan of the parent whose birthday falls earlier in the calendar year is generally primary — the year of birth does not matter. It is the rule payers most often apply from incomplete data.
Is this appealable?
There is rarely a determination to appeal. It is a records problem, and it resolves faster through the coordination file than through the appeals process.

Related guides

OA-109 · Coordination of benefitsCO-22 · Coordination of benefitsCO-23 · Coordination of benefits

Sources

Reason-code meanings are paraphrased from the X12 Claim Adjustment Reason Code list for plain-language reference; they are not reproduced verbatim. This is general information, not legal, coding, or medical advice — always confirm against the payer's remittance and policy.

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