Is ICD-10-CM code N51 billable?

Yes, N51 (Disorders of male genital organs in diseases classified elsewhere) is a billable ICD-10-CM diagnosis code, valid for reimbursement on HIPAA-covered transactions for FY2026.

What chapter does ICD-10-CM code N51 belong to?

N51 belongs to Chapter 14 of the ICD-10-CM tabular list: N00–N99 (Diseases of the Genitourinary System).

N51Billable

Disorders of male genital organs in diseases classified elsewhere

Diseases of the Genitourinary System·Diseases of male genital organs (N40-N53)·category·FY 2026

CH14 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

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)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

amebic balanitis (A06.8)
candidal balanitis (B37.42)
gonococcal balanitis (A54.23)
gonococcal prostatitis (A54.22)
herpesviral [herpes simplex] balanitis (A60.01)
trichomonal prostatitis (A59.02)
tuberculous prostatitis (A18.14)

Code First

underlying disease, such as:
filariasis (B74.0-B74.9)

Clinical Hierarchy

BillableHas subcodes

CH14Diseases of the genitourinary system (N00-N99)

N40-N53Diseases of male genital organs (N40-N53)

N51Disorders of male genital organs in diseases classified elsewhereBillable

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 729

Other Male Reproductive System Diagnoses with CC/MCC

DRG 730

Other Male Reproductive System Diagnoses without CC/MCC