A50 is the ICD-10 code for Congenital syphilis. It is a three-character category divided into 9 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block A50–A64 (Infections with a predominantly sexual mode of transmission) in Chapter I, Certain infectious and parasitic diseases.
- Code type
- Category (3 characters)
- Chapter
- I · A00–B99
- Classification
- WHO ICD-10, 2019 version
Subcodes of A50
- 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
A50 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DA50Medfødt syfilis
A50Synnynnäinen oireinen kuppa
A50Syphilis connata
A50Syphilis congénitale
A50congenitale syfilis
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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