ICD-10-CM · Chapter 1

A51..39 Other secondary syphilis of skin

Billable

← A51 — Early syphilis Chapter 1: A00-B99

Includes

Syphilitic leukoderma
Syphilitic mucous patch

Excludes 1 (cannot be coded together)

late syphilitic leukoderma (A52.79)

Last reviewed: September 2026