The block A50–A64 of ICD-10 is titled “Infections with a predominantly sexual mode of transmission”. It is part of Chapter I, Certain infectious and parasitic diseases, and holds 13 groups.
What A50–A64 excludes
Conditions that look similar but belong under another code.
Codes in A50–A64
- A50.0Early congenital syphilis, symptomatic
- A50.1Early congenital syphilis, latent
- A50.2Early congenital syphilis, unspecified
- A50.3Late congenital syphilitic oculopathy
- A50.4Late congenital neurosyphilis [juvenile neurosyphilis]
- A50.5Other late congenital syphilis, symptomatic
- A50.6Late congenital syphilis, latent
- A50.7Late congenital syphilis, unspecified
- A50.9Congenital syphilis, unspecified
- A54.0Gonococcal infection of lower genitourinary tract without periurethral or accessory gland abscess
- A54.1Gonococcal infection of lower genitourinary tract with periurethral and accessory gland abscess
- A54.2Gonococcal pelviperitonitis and other gonococcal genitourinary infections
- A54.3Gonococcal infection of eye
- A54.4Gonococcal infection of musculoskeletal system
- A54.5Gonococcal pharyngitis
- A54.6Gonococcal infection of anus and rectum
- A54.8Other gonococcal infections
- A54.9Gonococcal infection, unspecified
- A56.0Chlamydial infection of lower genitourinary tract
- A56.1Chlamydial infection of pelviperitoneum and other genitourinary organs
- A56.2Chlamydial infection of genitourinary tract, unspecified
- A56.3Chlamydial infection of anus and rectum
- A56.4Chlamydial infection of pharynx
- A56.8Sexually transmitted chlamydial infection of other sites
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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