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N71

Non-Billable (Header)

Inflammatory disease of uterus, except cervix

Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)

What This Code Means

N71 is the ICD-10-CM diagnosis code for inflammatory disease of uterus, except cervix. N71 sits in the ICD-10-CM chapter for diseases of the genitourinary system (n00-n99), within the section covering inflammatory diseases of female pelvic organs (n70-n77).

Header codes like N71 cannot be reported on claims directly — they organize child codes that share clinical context but the actual diagnosis must be coded to the highest level of specificity supported by the documentation. Coders should look at N71's child codes and select the one that matches the patient's documented presentation, since payers reject header codes submitted as the primary diagnosis. For risk adjustment workflows, header codes never contribute to a Medicare Advantage member's RAF score on their own; only billable child codes that happen to map to a payment HCC affect risk-adjusted plan payments.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for N71 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Includes

  • endo (myo) metritis
  • metritis
  • myometritis
  • pyometra
  • uterine abscess

Excludes 1 — Do NOT code together

  • hyperplastic endometritis (N85.0-)
  • infection of uterus following delivery (O85, O86.-)

Use Additional Code

  • code (B95-B97), to identify infectious agent

Child Codes

Code Hierarchy

N71Inflammatory disease of uterus, except cervix
N71Inflammatory disease of uterus, except cervix

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