Diseases of the genitourinary system (N00–N99) ICD-10-CM
Chapter 14 of the ICD-10-CM classification spans codes N00–N99 and contains 1,047 diagnosis codes for diseases of the genitourinary system, of which 838 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 · 1,047 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About Chapter 14
These conditions affect the kidneys, urinary tract, genital organs, and breasts. The chapter also includes complications during or after genitourinary procedures.
The kidney groups separate diseases of kidney filtering structures and tubules from kidney failure, chronic kidney disease, urinary stones, and other kidney or ureter disorders. Other urinary system diseases have a separate group. The remaining groups distinguish male genital organ diseases, breast disorders, inflammatory diseases of female pelvic organs, and noninflammatory disorders of the female genital tract. A final group covers genitourinary complications during or after procedures that are not classified elsewhere.
FY 2027 changes: The FY 2027 ICD-10-CM update, effective October 1, 2026, added 2 codes in this chapter.
Questions About This Page
How many codes are in the N00-N99 range?
The N00-N99 range contains 1,047 ICD-10-CM diagnosis codes in FY 2027. 838 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 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
