ICD-10 Code A52.79 – Other symptomatic late syphilis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A52.79 – Other symptomatic late syphilis
What it is
A52.79 identifies late syphilis with symptoms that do not fit a more specific late syphilis category. Use it when documentation confirms symptomatic late-stage disease and the record does not name a different coded manifestation.
Clinical signs
Clinical features vary; refer to documentation. Late syphilis may involve neurologic, cardiovascular, or other organ-specific findings, but you should code only what is clearly documented and supported by the record.
When to use this code
Use this code when the provider documents other symptomatic late syphilis and no more specific late syphilis code applies. It may also fit when the chart describes late syphilis symptoms but does not identify a better-defined manifestation. Check the note for organ involvement and stage.
Do not use for
Do not use A52.79 for early syphilis, latent syphilis, or congenital syphilis. If the documentation names a specific late syphilis manifestation, choose that more precise code instead.
Coding tip
Code the most specific documented syphilis stage and manifestation first; if the record is vague, check documentation before defaulting to A52.79.