A50 Congenital syphilis

A51 Early syphilis

A52 Late syphilis

A53 Other and unspecified syphilis

A54 Gonococcal infection

A55 Chlamydial lymphogranuloma (venereum)

A56 Other sexually transmitted chlamydial diseases

A57 Chancroid

A58 Granuloma inguinale

A59 Trichomoniasis

A60 Anogenital herpesviral [herpes simplex] infection

A63 Other predominantly sexually transmitted diseases, not elsewhere classified

A64 Unspecified sexually transmitted disease