ICD-10 Code for Syphilid
The ICD-10-CM code for syphilid is A51.39 — Other secondary syphilis of skin. This is the code the Alphabetic Index gives for syphilid with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
Billable
Which syphilid code should you use?
The Alphabetic Index lists 3 codes under Syphilid. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources