ICD-10-CM > A00-B99 > A50-A64 > A56 > A56.0 A56.0 Chlamydial infection of lower genitourinary tract Non-Billable/Non-Specific Codes A56.00Chlamydial infection of lower genitourinary tract, unspecifiedA56.01Chlamydial cystitis and urethritisA56.02Chlamydial vulvovaginitisA56.09Other chlamydial infection of lower genitourinary tract