| Header | Description |
| 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 |
| N11* | Chronic tubulo-interstitial nephritis |
| N13* | Obstructive and reflux uropathy |
| N13.3* | Other and unspecified hydronephrosis |
| N13.7* | Vesicoureteral-reflux |
| N13.72* | Vesicoureteral-reflux with reflux nephropathy without hydroureter |
| N13.73* | Vesicoureteral-reflux with reflux nephropathy with hydroureter |
| N14* | Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions |
| N15* | Other renal tubulo-interstitial diseases |
| N17* | Acute kidney failure |
| N18* | Chronic kidney disease (CKD) |
| N20* | Calculus of kidney and ureter |
| N21* | Calculus of lower urinary tract |
| N25* | Disorders resulting from impaired renal tubular function |
| N25.8* | Other 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 |
| N28.8* | Other specified disorders of kidney and ureter |
| N30* | Cystitis |
| N30.0* | Acute cystitis |
| N30.1* | Interstitial cystitis (chronic) |
| N30.2* | Other chronic cystitis |
| N30.3* | Trigonitis |
| N30.4* | Irradiation cystitis |
| N30.8* | Other cystitis |
| N30.9* | Cystitis, unspecified |
| N31* | Neuromuscular dysfunction of bladder, not elsewhere classified |
| N32* | Other disorders of bladder |
| N32.8* | Other specified disorders of bladder |
| N34* | Urethritis and urethral syndrome |
| N35* | Urethral stricture |
| N35.0* | Post-traumatic urethral stricture |
| N35.01* | Post-traumatic urethral stricture, male |
| N35.02* | Post-traumatic urethral stricture, female |
| N35.1* | Postinfective urethral stricture, not elsewhere classified |
| N35.11* | Postinfective urethral stricture, not elsewhere classified, male |
| N35.8* | Other urethral stricture |
| N35.81* | Other urethral stricture, male |
| N35.9* | Urethral stricture, unspecified |
| N35.91* | Urethral stricture, unspecified, male |
| N36* | Other disorders of urethra |
| N36.4* | Urethral functional and muscular disorders |
| N39* | Other disorders of urinary system |
| N39.4* | Other specified urinary incontinence |
| N39.49* | Other specified urinary incontinence |
| N40* | Benign prostatic hyperplasia |
| N41* | Inflammatory diseases of prostate |
| N42* | Other and unspecified disorders of prostate |
| N42.3* | Dysplasia of prostate |
| N42.8* | Other specified disorders of prostate |
| N43* | Hydrocele and spermatocele |
| N43.4* | Spermatocele of epididymis |
| N44* | Noninflammatory disorders of testis |
| N44.0* | Torsion of testis |
| N45* | Orchitis and epididymitis |
| N46* | Male infertility |
| N46.0* | Azoospermia |
| N46.02* | Azoospermia due to extratesticular causes |
| N46.1* | Oligospermia |
| N46.12* | Oligospermia due to extratesticular causes |
| N47* | Disorders of prepuce |
| N48* | Other disorders of penis |
| N48.2* | Other inflammatory disorders of penis |
| N48.3* | Priapism |
| N48.8* | Other specified disorders of penis |
| N49* | Inflammatory disorders of male genital organs, not elsewhere classified |
| N50* | Other and unspecified disorders of male genital organs |
| N50.8* | Other specified disorders of male genital organs |
| N50.81* | Testicular pain |
| N52* | Male erectile dysfunction |
| N52.0* | Vasculogenic erectile dysfunction |
| N52.3* | Postprocedural erectile dysfunction |
| N53* | Other male sexual dysfunction |
| N53.1* | Ejaculatory dysfunction |
| N60* | Benign mammary dysplasia |
| N60.0* | Solitary cyst of breast |
| N60.1* | Diffuse cystic mastopathy |
| N60.2* | Fibroadenosis of breast |
| N60.3* | Fibrosclerosis of breast |
| N60.4* | Mammary duct ectasia |
| N60.8* | Other benign mammary dysplasias |
| N60.9* | Unspecified benign mammary dysplasia |
| N61* | Inflammatory disorders of breast |
| N63* | Unspecified lump in breast |
| N63.1* | Unspecified lump in the right breast |
| N63.2* | Unspecified lump in the left breast |
| N63.3* | Unspecified lump in axillary tail |
| N63.4* | Unspecified lump in breast, subareolar |
| N64* | Other disorders of breast |
| N64.5* | Other signs and symptoms in breast |
| N64.8* | Other specified disorders of breast |
| N65* | Deformity and disproportion of reconstructed breast |
| N70* | Salpingitis and oophoritis |
| N70.0* | Acute salpingitis and oophoritis |
| N70.1* | Chronic salpingitis and oophoritis |
| N70.9* | Salpingitis and oophoritis, unspecified |
| N71* | Inflammatory disease of uterus, except cervix |
| N73* | Other female pelvic inflammatory diseases |
| N75* | Diseases of Bartholin's gland |
| N76* | Other inflammation of vagina and vulva |
| N76.8* | Other specified inflammation of vagina and vulva |
| N77* | Vulvovaginal ulceration and inflammation in diseases classified elsewhere |
| N80* | Endometriosis |
| N81* | Female genital prolapse |
| N81.1* | Cystocele |
| N81.8* | Other female genital prolapse |
| N82* | Fistulae involving female genital tract |
| N83* | Noninflammatory disorders of ovary, fallopian tube and broad ligament |
| N83.0* | Follicular cyst of ovary |
| N83.1* | Corpus luteum cyst |
| N83.2* | Other and unspecified ovarian cysts |
| N83.20* | Unspecified ovarian cysts |
| N83.29* | Other ovarian cysts |
| N83.3* | Acquired atrophy of ovary and fallopian tube |
| N83.31* | Acquired atrophy of ovary |
| N83.32* | Acquired atrophy of fallopian tube |
| N83.33* | Acquired atrophy of ovary and fallopian tube |
| N83.4* | Prolapse and hernia of ovary and fallopian tube |
| N83.5* | Torsion of ovary, ovarian pedicle and fallopian tube |
| N83.51* | Torsion of ovary and ovarian pedicle |
| N83.52* | Torsion of fallopian tube |
| N84* | Polyp of female genital tract |
| N85* | Other noninflammatory disorders of uterus, except cervix |
| N85.0* | Endometrial hyperplasia |
| 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 |
| N90.6* | Hypertrophy of vulva |
| N90.8* | Other specified noninflammatory disorders of vulva and perineum |
| N90.81* | Female genital mutilation status |
| 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 |
| N94.1* | Dyspareunia |
| N94.8* | Other specified conditions associated with female genital organs and menstrual cycle |
| N94.81* | Vulvodynia |
| N95* | Menopausal and other perimenopausal disorders |
| N97* | Female infertility |
| N98* | Complications associated with artificial fertilization |
| N99* | Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified |
