Current
A55 — Chlamydial lymphogranuloma (venereum)
Part of Chapter 1: Certain infectious and parasitic diseases , block Infections with a predominantly sexual mode of transmission (A50-A64) .
Official Notes
Inclusion Terms
Climatic or tropical bubo
Inclusion Terms
Durand-Nicolas-Favre disease
Inclusion Terms
Esthiomene
Inclusion Terms
Lymphogranuloma inguinale
Child Codes
A55 has no child codes in the FY 2027 release -- it is used on its own.
Referenced By
Official notes on these codes cite A55.
FY 2027 effective October 1, 2026 · CDC NCHS and CMS