Chapter 14: Diseases of the genitourinary system (N00-N99)

Code Range: N00 — N99 11 Sections FY 2026

This chapter of the ICD-10-CM classification covers diagnosis codes from N00 through N99. Browse the sections below to find specific diagnosis codes within this chapter.

Chapter Notes

Excludes2 (not included here):

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

N00-N08 Glomerular diseases (N00-N08)
120 codes
N10-N16 Renal tubulo-interstitial diseases (N10-N16)
44 codes
N17-N19 Acute kidney failure and chronic kidney disease (N17-N19)
18 codes
N20-N23 Urolithiasis (N20-N23)
12 codes
N25-N29 Other disorders of kidney and ureter (N25-N29)
28 codes
N30-N39 Other diseases of the urinary system (N30-N39)
112 codes
N40-N53 Diseases of male genital organs (N40-N53)
150 codes
N60-N65 Disorders of breast (N60-N65)
79 codes
N70-N77 Inflammatory diseases of female pelvic organs (N70-N77)
49 codes
N80-N98 Noninflammatory disorders of female genital tract (N80-N98)
378 codes
N99 Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99)
54 codes

Top-Level Codes in This Chapter

N00 Acute nephritic syndrome
N01 Rapidly progressive nephritic syndrome
N02 Recurrent and persistent hematuria
N03 Chronic nephritic syndrome
N04 Nephrotic syndrome
N05 Unspecified nephritic syndrome
N06 Isolated proteinuria with specified morphological lesion
N07 Hereditary nephropathy, not elsewhere classified
N08 Glomerular disorders in diseases classified elsewhere Billable
N10 Acute pyelonephritis Billable
N11 Chronic tubulo-interstitial nephritis
N12 Tubulo-interstitial nephritis, not specified as acute or chronic Billable
N13 Obstructive and reflux uropathy
N14 Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions
N15 Other renal tubulo-interstitial diseases
N16 Renal tubulo-interstitial disorders in diseases classified elsewhere Billable
N17 Acute kidney failure
N18 Chronic kidney disease (CKD)
N19 Unspecified kidney failure Billable
N20 Calculus of kidney and ureter
N21 Calculus of lower urinary tract
N22 Calculus of urinary tract in diseases classified elsewhere Billable
N23 Unspecified renal colic Billable
N25 Disorders resulting from impaired renal tubular function
N26 Unspecified contracted kidney
N27 Small kidney of unknown cause
N28 Other disorders of kidney and ureter, not elsewhere classified
N29 Other disorders of kidney and ureter in diseases classified elsewhere Billable
N30 Cystitis
N31 Neuromuscular dysfunction of bladder, not elsewhere classified
N32 Other disorders of bladder
N33 Bladder disorders in diseases classified elsewhere Billable
N34 Urethritis and urethral syndrome
N35 Urethral stricture
N36 Other disorders of urethra
N37 Urethral disorders in diseases classified elsewhere Billable
N39 Other disorders of urinary system
N40 Benign prostatic hyperplasia
N41 Inflammatory diseases of prostate
N42 Other and unspecified disorders of prostate
N43 Hydrocele and spermatocele
N44 Noninflammatory disorders of testis
N45 Orchitis and epididymitis
N46 Male infertility
N47 Disorders of prepuce
N48 Other disorders of penis
N49 Inflammatory disorders of male genital organs, not elsewhere classified
N50 Other and unspecified disorders of male genital organs
N51 Disorders of male genital organs in diseases classified elsewhere Billable
N52 Male erectile dysfunction
N53 Other male sexual dysfunction
N60 Benign mammary dysplasia
N61 Inflammatory disorders of breast
N62 Hypertrophy of breast Billable
N63 Unspecified lump in breast
N64 Other disorders of breast
N65 Deformity and disproportion of reconstructed breast
N70 Salpingitis and oophoritis
N71 Inflammatory disease of uterus, except cervix
N72 Inflammatory disease of cervix uteri Billable
N73 Other female pelvic inflammatory diseases
N74 Female pelvic inflammatory disorders in diseases classified elsewhere Billable
N75 Diseases of Bartholin's gland
N76 Other inflammation of vagina and vulva
N77 Vulvovaginal ulceration and inflammation in diseases classified elsewhere
N80 Endometriosis
N81 Female genital prolapse
N82 Fistulae involving female genital tract
N83 Noninflammatory disorders of ovary, fallopian tube and broad ligament
N84 Polyp of female genital tract
N85 Other noninflammatory disorders of uterus, except cervix
N86 Erosion and ectropion of cervix uteri Billable
N87 Dysplasia of cervix uteri
N88 Other noninflammatory disorders of cervix uteri
N89 Other noninflammatory disorders of vagina
N90 Other noninflammatory disorders of vulva and perineum
N91 Absent, scanty and rare menstruation
N92 Excessive, frequent and irregular menstruation
N93 Other abnormal uterine and vaginal bleeding
N94 Pain and other conditions associated with female genital organs and menstrual cycle
N95 Menopausal and other perimenopausal disorders
N96 Recurrent pregnancy loss Billable
N97 Female infertility
N98 Complications associated with artificial fertilization
N99 Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified

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