ICD-10-CM > A00-B99 > A50-A64 > A51 > A51.3 > A51.39 A51.39 Other secondary syphilis of skin Billable/Specific Copy Code Copy Description Applicable To Syphilitic leukodermaSyphilitic mucous patch Type 1 Excludes late syphilitic leukoderma (A52.79)