OakClaim
CO-243Contractual ObligationAuthorization

CO-243 Denial Code: Services not authorized by network/primary care providers

Services of this type were not authorized by network/primary care providers.

Why CO-243 happens

  • Missing PCP referral in a gatekeeper HMO plan

How to fix a CO-243 denial

  1. 1

    Obtain a retro-referral from the PCP if the plan permits

  2. 2

    Appeal with documentation of the referral relationship

How to prevent it

Check referral requirements at scheduling for HMO members.

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