A52.03 Syphilitic endocarditis
The ICD-10-CM code for Syphilitic endocarditis is A52.03 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- A50-A64: Infections with a predominantly sexual mode of transmission (A50-A64)
- Category A52
- 34 codes (30 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to A52.03:
- Syphilis, syphilitic (acquired) › aortic (insufficiency) (regurgitation) (stenosis)
- Syphilis, syphilitic (acquired) › endocarditis
- Syphilis, syphilitic (acquired) › mitral stenosis
- Syphilis, syphilitic (acquired) › valvulitis NEC
- Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) › syphilitic
- Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) › pulmonary (chronic) (heart) (valve) › syphilitic
- Disease, diseased › coronary (artery) › ostial, syphilitic (aortic) (mitral) (pulmonary)
- Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) › aortic (heart) (nonrheumatic) (valve) › syphilitic
Inclusion Terms
- Syphilitic aortic valve incompetence or stenosis
- Syphilitic mitral valve stenosis
- Syphilitic pulmonary valve regurgitation
U.S. Hospital Utilization
A52.03 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