A74 Other diseases caused by chlamydiae

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Other diseases caused by chlamydiae is A74 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
A70-A74: Other diseases caused by chlamydiae (A70-A74)
Category A74
6 codes (4 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with A74.
  • neonatal chlamydial conjunctivitis (P39.1)
  • neonatal chlamydial pneumonia (P23.1)
  • Reiter's disease (M02.3-)
  • sexually transmitted chlamydial diseases (A55-A56)
Excludes2
Not included here. These conditions are coded elsewhere but may be coded together if applicable.
  • chlamydial pneumonia (J16.0)

Official Coding Guidelines

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.a
Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference A74 with the canonical source and edition:

A74 — Other diseases caused by chlamydiae. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/A74

Canonical URL: https://icd10codingpro.com/codes/A74

Related Codes

More Specific Codes

A74.0 Chlamydial conjunctivitis A74.8 Other chlamydial diseases A74.9 Chlamydial infection, unspecified

All Codes in A74

Every most-specific code under A74 Other diseases caused by chlamydiae (4 codes):

Show the complete A74 code list
A74.0 Chlamydial conjunctivitis A74.81 Chlamydial peritonitis A74.89 Other chlamydial diseases A74.9 Chlamydial infection, unspecified
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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