N46.1

ICD-10Non-billable category

Oligospermia

Official ICD-10-CM descriptor (FY2026)

Oligospermia

N46.1 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Inclusion terms

Male infertility due to germinal cell desquamation
Male infertility due to hypospermatogenesis
Male infertility due to incomplete spermatogenic arrest

ICD-10-CM FY2026 defines 2 codes beneath N46.1. See the ICD-10-CM index for what this site publishes.

Related codes in N46

Where this code sits

Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: Diseases of male genital organs (N40-N53)
Parent code: N46

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.