N46.1

Oligospermia

FY2027Chapter 14: Diseases of the genitourinary system/N40–N53 Diseases of male genital organs

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

N46.1 is a non-billable ICD-10-CM code header for oligospermia. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are N46.11 Organic oligospermia and N46.12 Oligospermia due to extratesticular causes. Its coding notes include 1 Excludes1 entry and 8 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from N46 Male infertility

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 14 Diseases of the genitourinary system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Inclusion terms

Conditions classified to this code.

This code
  • Male infertility due to germinal cell desquamation
  • Male infertility due to hypospermatogenesis
  • Male infertility due to incomplete spermatogenic arrest

More specific codes under N46.1 2