CO-12
Diagnosis inconsistent with the provider type
What This Code Means
The diagnosis billed isn’t one this type of provider typically treats or reports.
Common Causes
- Provider taxonomy doesn't align with the diagnosis category
- Specialist billing outside their usual scope for this payer
How to Resolve or Appeal
- Verify taxonomy code accuracy
- Confirm scope-of-practice alignment with the payer if the denial persists
Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.