| A56 | Other sexually transmitted chlamydial diseases | NON-BILLABLE CODE |
| A56.0 | Chlamydial infection of lower genitourinary tract | NON-BILLABLE CODE |
| A56.00 | Chlamydial infection of lower genitourinary tract, unspecified | BILLABLE CODE |
| A56.01 | Chlamydial cystitis and urethritis | BILLABLE CODE |
| A56.02 | Chlamydial vulvovaginitis | BILLABLE CODE |
| A56.09 | Other chlamydial infection of lower genitourinary tract | BILLABLE CODE |
| A56.1 | Chlamydial infection of pelviperitoneum and other genitourinary organs | NON-BILLABLE CODE |
| A56.19 | Other chlamydial genitourinary infection | BILLABLE CODE |
| A56.2 | Chlamydial infection of genitourinary tract, unspecified | BILLABLE CODE |
| A56.3 | Chlamydial infection of anus and rectum | BILLABLE CODE |
| A56.4 | Chlamydial infection of pharynx | BILLABLE CODE |
| A56.8 | Sexually transmitted chlamydial infection of other sites | BILLABLE CODE |
