Other and unspecified syphilis (A53) ICD-10-CM
The A53 code range covers other and unspecified syphilis with 3 ICD-10-CM diagnosis codes. 2 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the A53 Range 3 codes · 2 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A53 range.
Syphilis
A contagious venereal disease caused by the spirochete TREPONEMA PALLIDUM.
Syphilis, Latent
The stage of syphilis that occurs following the primary (CHANCRE) and secondary stages. The patient is asymptomatic at the latent stage but remains seropositive for the SPIROCHETE.
About the A53 Code Range
Syphilis appears here among infections transmitted mainly through sexual contact.
The subdivisions separate A53.0, latent syphilis not specified as early or late, from A53.9, syphilis without further specification.
Questions About This Page
How many billable codes are in the A53 range?
Of the 3 codes in this range, 2 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A53 range classify?
The range classifies other and unspecified syphilis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
