ICD-10 Code A51.31 – Condyloma latum (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A51.31 – Condyloma latum
What it is
A51.31 identifies condyloma latum, a moist, broad-based wart-like lesion associated with secondary syphilis. Use this code when the documentation states this specific manifestation.
Clinical signs
Typical findings include flat, broad, moist lesions in warm, moist skin folds, often in the anogenital area. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents condyloma latum or syphilitic condyloma as a diagnosis. It may appear as part of secondary syphilis with characteristic mucocutaneous lesions. Code it only when the record supports this specific manifestation.
Do not use for
Do not use A51.31 for common genital warts, which are coded elsewhere. Check documentation if the lesion type is not clearly linked to syphilis.
Coding tip
Verify that the note ties the lesion to syphilis before assigning A51.31.