CARC 236CO · Contractual Obligation
Two procedure and modifier combinations billed on the same day conflict with each other per coding edit rules.
- Common causes
- Coding edits flag the combination as incompatible, often due to overlapping or redundant modifier usage.
- Suggested fix
- Review the modifier usage for both procedures and correct any conflicting or redundant modifiers before resubmitting.
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 236 mean?
Two procedure and modifier combinations billed on the same day conflict with each other per coding edit rules.
How do I resolve CARC 236?
Review the modifier usage for both procedures and correct any conflicting or redundant modifiers before resubmitting.
Why does CARC 236 happen?
Coding edits flag the combination as incompatible, often due to overlapping or redundant modifier usage.
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.