A51.3
Header — not billableSecondary syphilis of skin and mucous membranes
The ICD-10 code for secondary syphilis of skin and mucous membranes is A51.3.
A51.3 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under A51.3
Related codes in this category
- A51.0Primary genital syphilis
- A51.1Primary anal syphilis
- A51.2Primary syphilis of other sites
- A51.4Other secondary syphilisnon-billable header
- A51.5Early syphilis, latent
- A51.9Early syphilis, unspecified
- A51.3Secondary syphilis of skin and mucous membranesnon-billable header