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ICD-10-CM 2027

ICD-10 code for mucous syphilis

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Syphilis, syphilitic (acquired) › mucous”. Page updated September 29, 2026.

About coding mucous syphilis

The official ICD-10-CM index doesn't give a single default code for mucous syphilis; the code depends on the details below.

More specific mucous syphilis codes (official index)

  • membrane (secondary) A51.39 — Other secondary syphilis of skin
  • late A52.79 — Other symptomatic late syphilis
  • patches A51.39 — Other secondary syphilis of skin
  • congenital A50.07 — Early mucocutaneous congenital syphilis

Common questions about mucous syphilis ICD-10 codes

What is the ICD-10 code for membrane mucous syphilis?

A51.39 — Other secondary syphilis of skin.

What is the ICD-10 code for patches mucous syphilis?

A51.39 — Other secondary syphilis of skin.