A55

ICD-10Billable

Chlamydial lymphogranuloma (venereum)

Official ICD-10-CM descriptor (FY2026)

Chlamydial lymphogranuloma (venereum)

A55 is valid for submission on a claim: CMS flags it as a billable, specific code.

Inclusion terms

Climatic or tropical bubo
Durand-Nicolas-Favre disease
Esthiomene
Lymphogranuloma inguinale

Where this code sits

Chapter: 1. Certain infectious and parasitic diseases (A00-B99)
Block: Infections with a predominantly sexual mode of transmission (A50-A64)

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.