A52.9 Late syphilis, unspecified

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)

• 097.0 Late syphilis, unspecified

Code annotations containing back-references to A52.9

Back-references to A52

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

Diagnosis Index entries for A52.9

• Syphilis, syphilitic (acquired) › late
• Syphilis, syphilitic (acquired) › tertiary

Nearby codes

• A52.76 Other genitourinary symptomatic late syphilis
• A52.77 Syphilis of bone and joint
• A52.78 Syphilis of other musculoskeletal tissue
• A52.79 Other symptomatic late syphilis
• A52.8 Late syphilis, latent
• A52.9 Late syphilis, unspecified (this code)