Diseases of the genitourinary system (N00–N99)

Browse all the diagnosis codes used for diseases of the genitourinary system (n00–n99). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.
  • Diseases of the genitourinary system (N00–N99)

    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)

    • Glomerular diseases (N00-N08)

      • Acute nephritic syndrome (N00)
      • Rapidly progressive nephritic syndrome (N01)
      • Recurrent and persistent hematuria (N02)
      • Chronic nephritic syndrome (N03)
      • Nephrotic syndrome (N04)
      • Unspecified nephritic syndrome (N05)
      • Isolated proteinuria with specified morphological lesion (N06)
      • Hereditary nephropathy, not elsewhere classified (N07)
      • Glomerular disorders in diseases classified elsewhere (N08)
    • Renal tubulo-interstitial diseases (N10-N16)

      • Acute pyelonephritis (N10)
      • Chronic tubulo-interstitial nephritis (N11)
      • Tubulo-interstitial nephritis, not specified as acute or chronic (N12)
      • Obstructive and reflux uropathy (N13)
      • Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14)
      • Other renal tubulo-interstitial diseases (N15)
      • Renal tubulo-interstitial disorders in diseases classified elsewhere (N16)
    • Acute kidney failure and chronic kidney disease (N17-N19)

      • Acute kidney failure (N17)
      • Chronic kidney disease (CKD) (N18)
      • Unspecified kidney failure (N19)
    • Urolithiasis (N20-N23)

      • Calculus of kidney and ureter (N20)
      • Calculus of lower urinary tract (N21)
      • Calculus of urinary tract in diseases classified elsewhere (N22)
      • Unspecified renal colic (N23)
    • Other disorders of kidney and ureter (N25-N29)

      • Disorders resulting from impaired renal tubular function (N25)
      • Unspecified contracted kidney (N26)
      • Small kidney of unknown cause (N27)
      • Other disorders of kidney and ureter, not elsewhere classified (N28)
      • Other disorders of kidney and ureter in diseases classified elsewhere (N29)
    • Other diseases of the urinary system (N30-N39)

      • Cystitis (N30)
      • Neuromuscular dysfunction of bladder, not elsewhere classified (N31)
      • Other disorders of bladder (N32)
      • Bladder disorders in diseases classified elsewhere (N33)
      • Urethritis and urethral syndrome (N34)
      • Urethral stricture (N35)
      • Other disorders of urethra (N36)
      • Urethral disorders in diseases classified elsewhere (N37)
      • Other disorders of urinary system (N39)
    • Diseases of male genital organs (N40-N53)

      • Benign prostatic hyperplasia (N40)
      • Inflammatory diseases of prostate (N41)
      • Other and unspecified disorders of prostate (N42)
      • Hydrocele and spermatocele (N43)
      • Noninflammatory disorders of testis (N44)
      • Orchitis and epididymitis (N45)
      • Male infertility (N46)
      • Disorders of prepuce (N47)
      • Other disorders of penis (N48)
      • Inflammatory disorders of male genital organs, not elsewhere classified (N49)
      • Other and unspecified disorders of male genital organs (N50)
      • Disorders of male genital organs in diseases classified elsewhere (N51)
      • Male erectile dysfunction (N52)
      • Other male sexual dysfunction (N53)
    • Disorders of breast (N60-N65)

      • Benign mammary dysplasia (N60)
      • Inflammatory disorders of breast (N61)
      • Hypertrophy of breast (N62)
      • Unspecified lump in breast (N63)
      • Other disorders of breast (N64)
      • Deformity and disproportion of reconstructed breast (N65)
    • Inflammatory diseases of female pelvic organs (N70-N77)

      • Salpingitis and oophoritis (N70)
      • Inflammatory disease of uterus, except cervix (N71)
      • Inflammatory disease of cervix uteri (N72)
      • Other female pelvic inflammatory diseases (N73)
      • Female pelvic inflammatory disorders in diseases classified elsewhere (N74)
      • Diseases of Bartholin's gland (N75)
      • Other inflammation of vagina and vulva (N76)
      • Vulvovaginal ulceration and inflammation in diseases classified elsewhere (N77)
    • Noninflammatory disorders of female genital tract (N80-N98)

      • Endometriosis (N80)
      • Female genital prolapse (N81)
      • Fistulae involving female genital tract (N82)
      • Noninflammatory disorders of ovary, fallopian tube and broad ligament (N83)
      • Polyp of female genital tract (N84)
      • Other noninflammatory disorders of uterus, except cervix (N85)
      • Erosion and ectropion of cervix uteri (N86)
      • Dysplasia of cervix uteri (N87)
      • Other noninflammatory disorders of cervix uteri (N88)
      • Other noninflammatory disorders of vagina (N89)
      • Other noninflammatory disorders of vulva and perineum (N90)
      • Absent, scanty and rare menstruation (N91)
      • Excessive, frequent and irregular menstruation (N92)
      • Other abnormal uterine and vaginal bleeding (N93)
      • Pain and other conditions associated with female genital organs and menstrual cycle (N94)
      • Menopausal and other perimenopausal disorders (N95)
      • Recurrent pregnancy loss (N96)
      • Female infertility (N97)
      • Complications associated with artificial fertilization (N98)
    • Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99)

      • Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99)