Source Code Name Case count Share of cases (%)
OUTPAT OUTPAT_ICD10(A510) Primary genital syphilis 131
OUTPAT OUTPAT_ICD10(A513) Secondary syphilis of skin and mucous membranes 100
OUTPAT OUTPAT_ICD10(A519) Early syphilis, unspecified 57
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(A513) Secondary syphilis of skin and mucous membranes. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 56
INPAT INPAT_ICD8(09100) Early syphilis, symptomatic, Primary syphilis, except extragenital chancre 41
INPAT INPAT_ICD9(0913A) Secondary syphilis of skin or mucous membranes 20
INPAT INPAT_ICD8(09120) Early syphilis, symptomatic, Secondary syphilis of skin and mucous membranes 18
OUTPAT OUTPAT_ICD10(A515) Early syphilis, latent 18
INPAT INPAT_ICD10(A519) Early syphilis, unspecified 17
OUTPAT OUTPAT_ICD10(A514) Other secondary syphilis 13
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(A510) Primary genital syphilis. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 12
INPAT INPAT_ICD10(A510) Primary genital syphilis 11
INPAT INPAT_ICD10(A513) Secondary syphilis of skin and mucous membranes 9
INPAT INPAT_ICD9(0910A) Genital syphilis (primary) 8
INPAT INPAT_ICD10(A514) Other secondary syphilis 6
INPAT INPAT_ICD10(A515) Early syphilis, latent 6
OUTPAT OUTPAT_ICD10(A511) Primary anal syphilis 5
OUTPAT OUTPAT_ICD10(A512) Primary syphilis of other sites 5