← Back to Code Directory
CARC
CO-58
CARC
CO — Contractual Obligation
Coding/Modifier
Quick Facts
Code
CO-58
Type
CARC
Category
Coding/Modifier
Status
Active
Treatment deemed to have been rendered in an inappropriate or invalid place of service
What Does This Code Mean?
The payer determined the setting where the service was performed isn’t appropriate for that service.
Common Causes
- Procedure typically performed inpatient billed as outpatient (or vice versa)
- POS code doesn't match payer's coverage rules for that CPT code
Recommended Next Steps
- Confirm the payer's place-of-service requirements for the CPT code
- Correct the POS code if it was entered wrong, or appeal with clinical justification
Recently Viewed
Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.