| A55 | Chlamydial lymphogranuloma (venereum) |
| A56 | Other sexually transmitted chlamydial diseases |
| A56.0 | Chlamydial infection of lower genitourinary tract |
| A56.00 | Chlamydial infection of lower genitourinary tract, unspecified |
| A56.01 | Chlamydial cystitis and urethritis |
| A56.02 | Chlamydial vulvovaginitis |
| A56.09 | Other chlamydial infection of lower genitourinary tract |
| A56.1 | Chlamydial infection of pelviperitoneum and other genitourinary organs |
| A56.11 | Chlamydial female pelvic inflammatory disease |
| A56.19 | Other chlamydial genitourinary infection |
| A56.2 | Chlamydial infection of genitourinary tract, unspecified |
| A56.3 | Chlamydial infection of anus and rectum |
| A56.4 | Chlamydial infection of pharynx |
| A56.8 | Sexually transmitted chlamydial infection of other sites |