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CO-10 Denial Code — Diagnosis inconsistent with the patient’s gender – Denial Journal
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CARC

CO-10

CARC CO — Contractual Obligation Coding/Modifier
Quick Facts
Code
CO-10
Type
CARC
Category
Coding/Modifier
Status
Active

Diagnosis inconsistent with the patient's gender

What Does This Code Mean?

The diagnosis code billed doesn’t align with the patient’s gender on file.

Common Causes

  • Gender-specific diagnosis code used against mismatched demographic data
  • Data entry error

Recommended Next Steps

  1. Confirm patient demographics are accurate
  2. Correct and resubmit if it was a data entry error

More Denial Codes to Check

RARC MA114 RARC M50 CARC CO-12 RARC M59 RARC MA82 RARC M127 RARC MA36 CARC CO-17 CARC CO-16 RARC M77

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

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