ICD-10-CM 2027
ICD-10 code for spermatocele
From the official ICD-10-CM alphabetic index entry “Spermatocele”. Page updated September 29, 2026.
About coding spermatocele
The ICD-10-CM code for spermatocele is N43.40 (Spermatocele of epididymis, unspecified). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N43.40.
Within N43.4, choose N43.40 (unspecified) only when documentation doesn't support a more specific option: single (N43.41) and multiple (N43.42).
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 spermatocele codes (official index)
Common questions about spermatocele ICD-10 codes
What is the ICD-10 code for spermatocele?
- N43.40 — Spermatocele of epididymis, unspecified. More specific codes apply when the documentation supports them: Q55.4, N43.42, N43.41.
What is the ICD-10 code for congenital spermatocele?
- Q55.4 — Other congenital malformations of vas deferens, epididymis, seminal vesicles and prostate.
What is the ICD-10 code for multiple spermatocele?
- N43.42 — Spermatocele of epididymis, multiple.
What is the ICD-10 code for single spermatocele?
- N43.41 — Spermatocele of epididymis, single.
Is N43.40 billable?
- Yes. N43.40 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N43.40 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N43.40 as a principal diagnosis.
Is N43.40 a CC or MCC?
- No. N43.40 is neither a CC nor an MCC under MS-DRG v44.0.