10ICD Code Hub

A51.4

Header — not billable

Other secondary syphilis

The ICD-10 code for other secondary syphilis is A51.4.

A51.4 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 7 more specific codes below.

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under A51.4

Related codes in this category