CARC 11CO · Contractual Obligation
The diagnosis code doesn't support medical necessity for the procedure billed, based on the payer's coverage edits.
- Common causes
- The diagnosis and procedure combination isn't recognized as medically linked by the payer's claim edits, often due to an incomplete or non-specific diagnosis code.
- Suggested fix
- Review the encounter documentation for a more specific or additional diagnosis that supports the procedure, then resubmit or appeal with clinical notes.
Related Contractual Obligation codes
107This claim depends on another related claim or service being referenced, but that link wasn't provided.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.172The payment amount was adjusted because of the rendering provider's specialty designation.
Frequently asked questions
What does CARC 11 mean?
The diagnosis code doesn't support medical necessity for the procedure billed, based on the payer's coverage edits.
How do I resolve CARC 11?
Review the encounter documentation for a more specific or additional diagnosis that supports the procedure, then resubmit or appeal with clinical notes.
Why does CARC 11 happen?
The diagnosis and procedure combination isn't recognized as medically linked by the payer's claim edits, often due to an incomplete or non-specific diagnosis code.
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.