MCMedicalCodingSoftware
A53.0

A53.0: Latent syphilis, unspecified as early or late

Billable / specific codeICD-10-CM

A53.0 is a billable, specific ICD-10-CM code for latent syphilis, unspecified as early or late. It is valid for submission on a claim.

Check A53.0 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Latent syphilis NOS
  • Positive serological reaction for syphilis

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

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

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A53

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.