A50.6 is the ICD-10 code for Late congenital syphilis, latent. It is a four-character subcategory of A50 (Congenital syphilis), the most specific level in the WHO edition. 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
- Subcategory (4 characters)
- Chapter
- I · A00–B99
- Classification
- WHO ICD-10, 2019 version
Coding notes
- Congenital syphilis without clinical manifestations, with positive serological reaction and negative spinal fluid test, two years or more after birth.
A50.6 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
A50.6Latent medfødt sen syfilis
DA506Sen medfødt seropositiv syfilis uden kliniske manifestationer
A50.6Piilevä synnynnäinen myöhäiskuppa
A50.6Latente konnatale Spätsyphilis
A50.6Syphilis congénitale tardive, latente
A50.6late congenitalesyfilis, latent
A50.6Late congenital syphilis, latent
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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