Disorders of male genital organs in diseases classified elsewhere (N51) ICD-10-CM
The N51 code range covers disorders of male genital organs in diseases classified elsewhere with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
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.
Codes in the N51 Range 1 codes · 1 billable
- N51 Disorders of male genital organs in diseases classified elsewhere
About the N51 Code Range
ICD-10 code N51 is used to classify disorders of male genital organs that occur as part of other underlying diseases. This code specifically captures conditions like infections or inflammations of the male reproductive system linked to different primary illnesses.
Disorders coded under N51 include conditions such as orchitis and epididymitis when they are associated with another disease, as well as chylocele caused by infections like Loa loa. These conditions—sometimes referred to as Orchitis associated with another disorder, Epididymitis associated with another disorder, or Chylocele of the tunica vaginalis caused by Loa loa—require this code to accurately capture their relationship to a broader illness. Understanding that N51 is the specific ICD-10 code for male genital organ disorders linked with systemic diseases helps coders and healthcare providers document these complex cases correctly in medical records and billing systems.
Questions About This Page
How many billable codes are in the N51 range?
Of the 1 codes in this range, 1 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 N51 range classify?
The range classifies disorders of male genital organs in diseases classified elsewhere. 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.
