ICD-10-CM 2027
ICD-10 code for epididymitis chlamydia
From the official ICD-10-CM alphabetic index entry “Chlamydia, chlamydial › epididymitis”. Page updated September 29, 2026.
About coding epididymitis chlamydia
The ICD-10-CM code for epididymitis chlamydia is A56.19 (Other chlamydial genitourinary infection).
Within A56.1, choose A56.19 (Other chlamydial genitourinary infection) only when documentation doesn't support a more specific option: chlamydial female pelvic inflammatory disease (A56.11).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 689 (Kidney and Urinary Tract Infections with MCC, relative weight 1.1415) and DRG 690 (Kidney and Urinary Tract Infections without MCC, relative weight 0.801), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about epididymitis chlamydia ICD-10 codes
What is the ICD-10 code for epididymitis chlamydia?
- A56.19 — Other chlamydial genitourinary infection.
Is A56.19 billable?
- Yes. A56.19 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A56.19 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A56.19 as a principal diagnosis.
Is A56.19 a CC or MCC?
- No. A56.19 is neither a CC nor an MCC under MS-DRG v44.0.