CARC 183CO · Contractual Obligation
The provider listed as referring this service isn't recognized by the payer as eligible to make that referral.
- Common causes
- The referring provider isn't enrolled with the payer, lacks the required credentials, or their NPI is inactive or incorrect.
- Suggested fix
- Confirm the referring provider's enrollment status and NPI with the payer, correct if needed, and resubmit.
Related Contractual Obligation codes
107This claim depends on another related claim or service being referenced, but that link wasn't provided.11The diagnosis code doesn't support medical necessity for the procedure billed, based on the payer's coverage edits.13The claim shows a date of service after the patient's recorded date of death.146The diagnosis code billed wasn't a valid, active code as of the date of service.150The documentation submitted doesn't justify the complexity or level of the service billed, commonly seen with evaluation and management visit levels.16The claim is missing required information or contains a billing error that prevented the payer from processing it.170This payer doesn't reimburse this specific provider type for this service.171This payer doesn't cover this service when it's billed by this provider type in this particular facility setting.
Frequently asked questions
What does CARC 183 mean?
The provider listed as referring this service isn't recognized by the payer as eligible to make that referral.
How do I resolve CARC 183?
Confirm the referring provider's enrollment status and NPI with the payer, correct if needed, and resubmit.
Why does CARC 183 happen?
The referring provider isn't enrolled with the payer, lacks the required credentials, or their NPI is inactive or incorrect.
CARC codes maintained by X12 (x12.org). Descriptions on this site are original reference interpretations. Always verify codes with authoritative sources before making billing decisions.