CARC150ReferenceCurrentVerified Aug 15, 2026CARC 150
AR Guide Workflow
Medical Necessity
The payer determined the service was not medically necessary or reasonable according to its policy. These denials are documentation-driven.
AR Guide explanation
What it means
The payer deems the information submitted does not support the level of service.
AR Guide knowledge
Common denial category
Medical Necessity — The payer determined the service was not medically necessary or reasonable according to its policy. These denials are documentation-driven.
AR Guide knowledge
Common causes
- Documentation does not support the level billed
- Level of service not consistent with the visit documentation
AR Guide knowledge
What AR should verify
- Compare the documentation to the level billed
- Confirm the documentation supports the key components of the level
AR Guide knowledge
Recommended action
- Appeal with the full clinical documentation
- If the level was overstated, correct and resubmit at the supported level
About this guidance: Note
AR Guide knowledge is general reference content written by our team — it is not payer-specific policy and never replaces the payer’s documentation or your contract. Always confirm specifics with the payer.