A51.0 is the ICD-10 code for Primary genital syphilis. It is a four-character subcategory of A51 (Early 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
What A51.0 includes
Conditions and terms that are coded here.
- Syphilitic chancre NOS
A51.0 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
A51.0Primær genital syfilis
DA510Primær genital syfilis
A51.0Primaarinen sukupuolielinten kuppa
A51.0Primärer syphilitischer Genitalaffekt
A51.0Syphilis génitale primaire
A51.0primaire genitalesyfilis
A51.0Primary genital syphilis
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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