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CARC
CO-198
CARC
CO — Contractual Obligation
Authorization
Quick Facts
Code
CO-198
Type
CARC
Category
Authorization
Status
Active
Precertification/notification/authorization/pre-treatment exceeded
What Does This Code Mean?
The service exceeded the scope, units, or date range of the authorization that was actually obtained.
Common Causes
- More units/visits performed than the authorization allowed
- Service performed after the authorization's approved date range expired
Recommended Next Steps
- Compare units/dates billed against the approved authorization exactly
- Request an authorization extension or additional units if clinically justified, and appeal with that documentation
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Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.