MCMedicalCodingSoftware
A56.01

A56.01: Chlamydial cystitis and urethritis

Billable / specific codeICD-10-CM

A56.01 is a billable, specific ICD-10-CM code for chlamydial cystitis and urethritis. It is valid for submission on a claim.

Check A56.01 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above A56.01

A category’s note binds every code beneath it.

Written on A56: Other sexually transmitted chlamydial diseases

  • neonatal chlamydial conjunctivitis (P39.1)
  • neonatal chlamydial pneumonia (P23.1)

Excludes2 inherited from the categories above A56.01

Not part of this code, but both may be coded when both are present.

Written on A56: Other sexually transmitted chlamydial diseases

  • chlamydial lymphogranuloma (A55)
  • conditions classified to A74.-

Other codes that can never be billed with A56.01

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • N33Bladder disorders in diseases classified elsewhere
  • N37Urethral disorders in diseases classified elsewhere

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

A56.01 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
  • A58720Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
  • A58747Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
  • A58761Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing

Alphabetic index entries that lead here

  • Chlamydia, chlamydial›cystitis
  • Chlamydia, chlamydial›urethritis
  • Cystitis›chlamydial
  • Urethritis›chlamydial

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A56.0

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.