Male infertility (N46) ICD-10-CM
The N46 code range covers male infertility with 21 ICD-10-CM diagnosis codes. 16 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- vasectomy status Z98.52
Codes in the N46 Range 21 codes · 16 billable
- N46 Male infertilityNon-billable
- N46.0 AzoospermiaNon-billable
- N46.01 Organic azoospermia
- N46.02 Azoospermia due to extratesticular causesNon-billable
- N46.021 Azoospermia due to drug therapy
- N46.022 Azoospermia due to infection
- N46.023 Azoospermia due to obstruction of efferent ducts
- N46.024 Azoospermia due to radiation
- N46.025 Azoospermia due to systemic disease
- N46.029 Azoospermia due to other extratesticular causes
- N46.1 OligospermiaNon-billable
- N46.11 Organic oligospermia
- N46.12 Oligospermia due to extratesticular causesNon-billable
- N46.121 Oligospermia due to drug therapy
- N46.122 Oligospermia due to infection
- N46.123 Oligospermia due to obstruction of efferent ducts
- N46.124 Oligospermia due to radiation
- N46.125 Oligospermia due to systemic disease
- N46.129 Oligospermia due to other extratesticular causes
- N46.8 Other male infertility
- N46.9 Male infertility, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the N46 range.
Aspermia
A condition characterized by the complete absence of SEMEN. This disorder should be differentiated from AZOOSPERMIA, absence of sperm in the semen.
Asthenozoospermia
A condition in which the percentage of motile sperm is abnormally low.
Azoospermia
A condition of having no sperm present in the ejaculate (SEMEN).
Oligospermia
A condition of suboptimal concentration of SPERMATOZOA in the ejaculated SEMEN to ensure successful FERTILIZATION of an OVUM. In humans, oligospermia is defined as a sperm count below 20 million per milliliter semen.
Semen
The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma.
Teratozoospermia
Conditions in which sperm show abnormal morphology.
About the N46 Code Range
ICD-10 code N46 is used to classify and document male infertility, covering a range of conditions that impair male reproductive ability. These codes precisely identify different causes and types of infertility, including azoospermia (absence of sperm) and oligospermia (low sperm count), each with specific subcategories.
The ICD-10 code for male infertility includes detailed classifications such as N46.0 for azoospermia and N46.1 for oligospermia. Within these, distinctions are made between organic causes, extratesticular causes like infections or obstructions, drug-induced conditions, and systemic diseases. For example, N46.01 covers organic azoospermia, also known by terms like anorchid azoospermia or primary spermatogenic failure, while N46.022 refers specifically to azoospermia due to infection. Other codes, such as N46.8, capture various other male infertility causes like congenital or acquired disorders, including cases involving antisperm antibodies or abnormal sperm morphology. The unspecified category N46.9 helps coders mark infertility when a definitive diagnosis isn’t established, encompassing synonyms like unexplained infertility, male sterility, and fertility problems caused by systemic or environmental factors. This coding framework assists healthcare providers and coders in precisely documenting male infertility causes to support accurate diagnosis, treatment, and research.
Questions About This Page
How many billable codes are in the N46 range?
Of the 21 codes in this range, 16 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the N46 range classify?
The range classifies male infertility. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
