ICD-10-CM 2027
ICD-10 code for testis disease
From the official ICD-10-CM alphabetic index entry “Disease, diseased › testis”. Page updated September 29, 2026.
About coding testis disease
The ICD-10-CM code for testis disease is N50.9 (Disorder of male genital organs, unspecified).
Within N50, choose N50.9 (Disorder of male genital organs, unspecified) only when documentation doesn't support a more specific option: atrophy of testis (N50.0), vascular disorders of male genital organs (N50.1), cyst of epididymis (N50.3) and other specified disorders of male genital organs (N50.8).
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.
Common questions about testis disease ICD-10 codes
What is the ICD-10 code for testis disease?
- N50.9 — Disorder of male genital organs, unspecified.
Is N50.9 billable?
- Yes. N50.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N50.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N50.9 as a principal diagnosis.
Is N50.9 a CC or MCC?
- No. N50.9 is neither a CC nor an MCC under MS-DRG v44.0.