ICD-10-CM 2027
ICD-10 code for oligospermia
From the official ICD-10-CM alphabetic index entry “Oligospermia”. Page updated September 29, 2026.
About coding oligospermia
The ICD-10-CM code for oligospermia is N46.11 (Organic oligospermia). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N46.11.
Within N46.1 (oligospermia), N46.11 is specifically for organic oligospermia. Related codes cover due to extratesticular causes (N46.12).
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 oligospermia codes (official index)
- due to
- drug therapy N46.121 — Oligospermia due to drug therapy
- efferent duct obstruction N46.123 — Oligospermia due to obstruction of efferent ducts
- infection N46.122 — Oligospermia due to infection
- radiation N46.124 — Oligospermia due to radiation
- specified cause NEC N46.129 — Oligospermia due to other extratesticular causes
- systemic disease N46.125 — Oligospermia due to systemic disease
Common questions about oligospermia ICD-10 codes
What is the ICD-10 code for oligospermia?
- N46.11 — Organic oligospermia. More specific codes apply when the documentation supports them: N46.121, N46.123, N46.122, N46.124 and others below.
Is N46.11 billable?
- Yes. N46.11 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N46.11 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N46.11 as a principal diagnosis.
Is N46.11 a CC or MCC?
- No. N46.11 is neither a CC nor an MCC under MS-DRG v44.0.