Source Code Name Case count Share of cases (%)
OUTPAT OUTPAT_ICD10(A510) Primary genital syphilis 153
OUTPAT OUTPAT_ICD10(A513) Secondary syphilis of skin and mucous membranes 126
OUTPAT OUTPAT_ICD10(A519) Early syphilis, unspecified 70
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! 59
INPAT INPAT_ICD8(09100) Early syphilis, symptomatic, Primary syphilis, except extragenital chancre 41
INPAT INPAT_ICD9(0913A) Secondary syphilis of skin or mucous membranes 23
INPAT INPAT_ICD10(A519) Early syphilis, unspecified 21
INPAT INPAT_ICD8(09120) Early syphilis, symptomatic, Secondary syphilis of skin and mucous membranes 20
OUTPAT OUTPAT_ICD10(A515) Early syphilis, latent 20
OUTPAT OUTPAT_ICD10(A514) Other secondary syphilis 16
INPAT INPAT_ICD10(A510) Primary genital syphilis 12
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(A513) Secondary syphilis of skin and mucous membranes 10
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