All ICD10 Codes
Chapter 14

N00–N99: Diseases of the Genitourinary System

Diseases of the Genitourinary System diagnostic classification updated for 2026.

Chapter 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)
All CodesBillable Only
Internal Codes
PrevNext
  • N25.9—

    Disorder resulting from impaired renal tubular function, unspecified

  • N26—

    Unspecified contracted kidney

  • N26.1—

    Atrophy of kidney (terminal)

  • N26.2—

    Page kidney

  • N26.9—

    Renal sclerosis, unspecified

  • N27—

    Small kidney of unknown cause

  • N27.0—

    Small kidney, unilateral

  • N27.1—

    Small kidney, bilateral

  • N27.9—

    Small kidney, unspecified

  • N28—

    Other disorders of kidney and ureter, not elsewhere classified

  • N28.0—

    Ischemia and infarction of kidney

  • N28.1—

    Cyst of kidney, acquired

  • N28.8—

    Other specified disorders of kidney and ureter

  • N28.81—

    Hypertrophy of kidney

  • N28.82—

    Megaloureter

  • N28.83—

    Nephroptosis

  • N28.84—

    Pyelitis cystica

  • N28.85—

    Pyeloureteritis cystica

  • N28.86—

    Ureteritis cystica

  • N28.89—

    Other specified disorders of kidney and ureter

  • N28.9—

    Disorder of kidney and ureter, unspecified

  • N29—

    Other disorders of kidney and ureter in diseases classified elsewhere

  • N30—

    Cystitis

  • N30.0—

    Acute cystitis

  • N30.00—

    Acute cystitis without hematuria

  • N30.01—

    Acute cystitis with hematuria

  • N30.1—

    Interstitial cystitis (chronic)

  • N30.10—

    Interstitial cystitis (chronic) without hematuria

  • N30.11—

    Interstitial cystitis (chronic) with hematuria

  • N30.2—

    Other chronic cystitis

  • N30.20—

    Other chronic cystitis without hematuria

  • N30.21—

    Other chronic cystitis with hematuria

  • N30.3—

    Trigonitis

  • N30.30—

    Trigonitis without hematuria

  • N30.31—

    Trigonitis with hematuria

  • N30.4—

    Irradiation cystitis

  • N30.40—

    Irradiation cystitis without hematuria

  • N30.41—

    Irradiation cystitis with hematuria

  • N30.8—

    Other cystitis

  • N30.80—

    Other cystitis without hematuria

  • N30.81—

    Other cystitis with hematuria

  • N30.9—

    Cystitis, unspecified

  • N30.90—

    Cystitis, unspecified without hematuria

  • N30.91—

    Cystitis, unspecified with hematuria

  • N31—

    Neuromuscular dysfunction of bladder, not elsewhere classified

  • N31.0—

    Uninhibited neuropathic bladder, not elsewhere classified

  • N31.1—

    Reflex neuropathic bladder, not elsewhere classified

  • N31.2—

    Flaccid neuropathic bladder, not elsewhere classified

  • N31.8—

    Other neuromuscular dysfunction of bladder

  • N31.9—

    Neuromuscular dysfunction of bladder, unspecified

PreviousPage 5 of 21Next