A50.07 Early mucocutaneous congenital syphilis
The ICD-10-CM code for Early mucocutaneous congenital syphilis is A50.07 (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 A50.07:
- Chancre (any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) › congenital
- Induration, indurated › chancre › congenital
- Patches › mucous (syphilitic) › congenital
- Mucous › patches (syphilitic) › congenital
- Bubo › syphilitic (primary) › congenital
- Condyloma › syphilitic › congenital
- Syphilis, syphilitic (acquired) › mucous › patches › congenital
- Syphilis, syphilitic (acquired) › congenital › early, or less than 2 years after birth NEC › symptomatic › mucocutaneous
U.S. Hospital Utilization
A50.07 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