ICD-10-CM 2027
ICD-10 code for testis cyst
From the official ICD-10-CM alphabetic index entry “Cyst (colloid) (mucous) (simple) (retention) › testis”. Page updated September 29, 2026.
About coding testis cyst
The ICD-10-CM code for testis cyst is N44.2 (Benign cyst of testis). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on N44.2.
Within N44 (noninflammatory disorders of testis), N44.2 is specifically for benign cyst of testis. Related codes cover torsion of testis (N44.0), cyst of tunica albuginea testis (N44.1) and other noninflammatory disorders of the testis (N44.8).
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.
More specific testis cyst codes (official index)
- tunica albuginea N44.1 — Cyst of tunica albuginea testis
Common questions about testis cyst ICD-10 codes
What is the ICD-10 code for testis cyst?
- N44.2 — Benign cyst of testis. More specific codes apply when the documentation supports them: N44.1.
What is the ICD-10 code for tunica albuginea testis cyst?
- N44.1 — Cyst of tunica albuginea testis.
Is N44.2 billable?
- Yes. N44.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N44.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N44.2 as a principal diagnosis.
Is N44.2 a CC or MCC?
- No. N44.2 is neither a CC nor an MCC under MS-DRG v44.0.