A53.0 Latent syphilis, unspecified as early or late

Billable ICD-10-CM code, FY2026.

Applicable to

• Latent syphilis NOS
• Positive serological reaction for syphilis

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 097.1 Latent syphilis, unspecified

Code annotations containing back-references to A53.0

Back-references to A53

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

Diagnosis Index entries for A53.0

• Positive › serology for syphilis
• Positive › VDRL
• Positive › Wassermann reaction
• Serology for syphilis › positive
• Serology for syphilis › reactivated
• Syphilis, syphilitic (acquired) › latent
• Syphilis, syphilitic (acquired) › latent › date of infection unspecified
• Syphilis, syphilitic (acquired) › latent › follow-up of latent syphilis
• Syphilis, syphilitic (acquired) › latent › follow-up of latent syphilis › date of infection unspecified
• Syphilis, syphilitic (acquired) › latent › positive serology (only finding)
• Syphilis, syphilitic (acquired) › latent › positive serology (only finding) › date of infection unspecified

Nearby codes

• A53 Other and unspecified syphilis
• A53.0 Latent syphilis, unspecified as early or late (this code)
• A53.9 Syphilis, unspecified