CO-296CO group · Authorization

CO-296 denial code: precertification valid, but not for this provider

CO-296 arrives when the doctor who did the case is not the doctor the authorization names — which happens whenever a schedule changes.

CO-296 fires when a valid authorization exists for a different rendering provider. Call coverage, partner handovers and locum arrangements are the ordinary causes, and none of them changes whether the care was necessary.

What CO-296 means

Authorizations are frequently issued against a named physician, and care is delivered by whoever is available on the day. Within a single group this is usually curable: many payers will transfer an authorization between providers in the same practice on request, and some treat a group-level authorization as covering any member. Where the payer refuses, the appeal is that the authorization approved the service and the substitution did not change what was medically necessary.

Why CO-296 fires

  • Call coverage or a partner handover changed who rendered the service.
  • A locum covered the authorized physician.
  • The authorization was issued to the referring rather than the performing provider.
  • The service moved to a different site with a different provider.

Is CO-296 worth appealing?

Sometimes worth appealing

Ask for the authorization to be transferred or reissued first — many payers will within a group. Where they refuse, argue that the approval was for the service and the substitution did not alter its necessity.

How to resolve or appeal CO-296

  1. 1

    Request a provider transfer

    Within the same group this is often an administrative change rather than a new authorization.

  2. 2

    Document the coverage arrangement

    Why the authorized physician did not render the service and who did.

  3. 3

    Argue substance over identity

    The approval addressed the service; the reviewer approved the care, not the individual.

CO-296 — frequently asked

Does it matter that we are the same practice?
It helps considerably. Many payers issue authorizations at group level or will transfer within a group; the denial often reflects how the request was recorded rather than a policy against substitution.
Is this appealable or a correction?
Try the correction first — it is faster. The appeal is the fallback where the payer insists the authorization was personal to the named provider.

Related guides

CO-284 · AuthorizationCO-198 · AuthorizationCO-197 · Authorization

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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