ICD-10-CM 2027
ICD-10 code for epididymis fistula
From the official ICD-10-CM alphabetic index entry “Fistula (cutaneous) › epididymis”. Page updated September 29, 2026.
About coding epididymis fistula
The ICD-10-CM code for epididymis fistula is N50.89 (Other specified disorders of the male genital organs). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on N50.89.
Within N50.8, choose N50.89 (Other specified disorders of the male genital organs) only when documentation doesn't support a more specific option: testicular pain (N50.81) and scrotal pain (N50.82).
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 729 (Other Male Reproductive System Diagnoses with CC/MCC, relative weight 1.0544) and DRG 730 (Other Male Reproductive System Diagnoses without CC/MCC, relative weight 0.6597), in MDC 12 (Diseases and Disorders of the Male Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific epididymis fistula codes (official index)
- tuberculous A18.15 — Tuberculosis of other male genital organs
Common questions about epididymis fistula ICD-10 codes
What is the ICD-10 code for epididymis fistula?
- N50.89 — Other specified disorders of the male genital organs. More specific codes apply when the documentation supports them: A18.15.
What is the ICD-10 code for tuberculous epididymis fistula?
- A18.15 — Tuberculosis of other male genital organs.
Is N50.89 billable?
- Yes. N50.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N50.89 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N50.89 as a principal diagnosis.
Is N50.89 a CC or MCC?
- No. N50.89 is neither a CC nor an MCC under MS-DRG v44.0.