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CO-11 Denial Code — Diagnosis inconsistent with the procedure – Denial Journal
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CARC

CO-11

CARC CO — Contractual Obligation Coding/Modifier
Quick Facts
Code
CO-11
Type
CARC
Category
Coding/Modifier
Status
Active

Diagnosis inconsistent with the procedure

What Does This Code Mean?

The diagnosis code doesn’t support medical necessity for the specific procedure billed.

Common Causes

  • Diagnosis pointer linked to the wrong ICD-10 code on the claim
  • Documentation doesn't support the procedure for that diagnosis

Recommended Next Steps

  1. Confirm the diagnosis pointer references the correct, most-specific ICD-10 code
  2. Query the provider if documentation genuinely doesn't support the procedure

Related Codes

CARC CO-50 CARC CO-167

More Denial Codes to Check

RARC M101 RARC M15 CARC CO-7 RARC M45 RARC M54 RARC MA130 RARC M124 CARC CO-226 RARC N95

Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.

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