A50.59 Other late congenital syphilis, symptomatic
The ICD-10-CM code for Other late congenital syphilis, symptomatic is A50.59 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- A50-A64: Infections with a predominantly sexual mode of transmission (A50-A64)
- Category A50
- 38 codes (33 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to A50.59:
- Dubois' disease (thymus gland)
- Stigmata congenital syphilis
- Syphiloma › congenital
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › Dubois
- Disease, diseased › Dubois (thymus)
- Syphilis, syphilitic (acquired) › stigmata (congenital)
- Gumma (syphilitic) › congenital
- Glomerulonephritis › in (due to) › syphilis (late) congenital
U.S. Hospital Utilization
A50.59 appeared in too few sampled U.S. inpatient stays in 2023 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
HIV Infections (TOC entry)a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19
Infectious agents causing diseases in other chapters (TOC)b. Infectious agents as the cause of diseases classified to other chapters ................................. 22
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026