A51.2 Primary syphilis of other sites

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 091.2 Other primary syphilis

Code annotations containing back-references to A51.2

Back-references to A51

• Type 2 Excludes: N34 Urethritis and urethral syndrome ("urethritis in diseases with a predominantly sexual mode of transmission (A50-A64)")

Diagnosis Index entries for A51.2

• Chancre (any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) › conjunctiva NEC
• Chancre (any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) › extragenital
• Chancre (any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) › eyelid
• Chancre (any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) › lip
• Chancre (any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) › nipple
• Chancre (any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) › palate, soft
• Chancre (any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) › soft › palate
• Induration, indurated › chancre › extragenital NEC
• Syphilis, syphilitic (acquired) › chancre (multiple) › extragenital
• Syphilis, syphilitic (acquired) › early › symptomatic › extragenital chancre
• Syphilis, syphilitic (acquired) › lip › chancre (primary)
• Syphilis, syphilitic (acquired) › primary › extragenital chancre NEC
• Syphilis, syphilitic (acquired) › primary › fingers
• Syphilis, syphilitic (acquired) › primary › lip
• Syphilis, syphilitic (acquired) › primary › specified site NEC
• Syphilis, syphilitic (acquired) › primary › tonsils
• Syphilis, syphilitic (acquired) › tonsil (lingual) (late) › primary
• Ulcus › durum (syphilitic) › extragenital

Nearby codes

• A51 Early syphilis
• A51.0 Primary genital syphilis
• A51.1 Primary anal syphilis
• A51.2 Primary syphilis of other sites (this code)
• A51.3 Secondary syphilis of skin and mucous membranes
• A51.31 Condyloma latum
• A51.32 Syphilitic alopecia
• A51.39 Other secondary syphilis of skin
• A51.4 Other secondary syphilis