Diseases of the genitourinary system (N00–N99) ICD-10-CM
Chapter 14 of the ICD-10-CM classification spans codes N00–N99 and contains 1,044 diagnosis codes for diseases of the genitourinary system, of which 836 are billable. The chapter is organized into 11 sections listed below, each linking to its code ranges and individual codes.
Chapter Coding Notes
Excludes2: 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)
Sections in This Chapter 11 ranges · 1,044 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About Chapter 14
Chapter 14 (N00–N99) of the ICD-10-CM classification covers a wide range of conditions affecting the genitourinary system, which includes the kidneys, urinary tract, and reproductive organs. These codes are used to identify diseases related to both urinary function and genital health.
This chapter addresses disorders such as kidney diseases, urinary tract infections, and conditions involving the male and female reproductive systems. It includes codes for common issues like chronic kidney disease, urinary tract obstructions, and inflammatory conditions of the reproductive organs. Healthcare providers use these codes to document and manage illnesses affecting urinary elimination, fluid balance, and reproductive function. Understanding these codes helps medical coders accurately classify genitourinary diseases, supporting effective clinical care and health record documentation.
Questions About This Page
How many codes are in the N00-N99 range?
The N00-N99 range contains 1,044 ICD-10-CM diagnosis codes in FY 2026. 836 of them are billable, and the rest are category headers that organize the chapter.
What conditions does N00-N99 cover?
The range covers diseases of the genitourinary system. The sections listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
