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Frequency / medical necessity appealable with records

Denial Code CARC 151: Payer deems the information submitted doesn't support this many/frequency of services

CARC 151 means: payer deems the information submitted doesn't support this many/frequency of services. Here's what it means in plain English, why it happens, and how it's worked toward payment.

CARC 151 — Payer deems the information submitted doesn't support this many/frequency of services. Denial family: Frequency / medical necessity.

Why you get a CARC 151 denial

How to fix or appeal CARC 151

  1. Verify the units/frequency are coded correctly.
  2. If clinically justified, appeal with documentation supporting the frequency.
  3. Cross-walk to the payer's policy on service limits.

Recoverable when the frequency is clinically supported and you submit the records to prove it.

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CARC 151 — FAQ

What does CARC 151 mean?

The payer thinks too many services/units were billed for the period. If the frequency is clinically necessary and documented, it's appealable with records.

How do I appeal CARC 151?

Submit the documentation that justifies the frequency and cross-walk it to the payer's service-limit policy; confirm units were coded correctly first.

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