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  4. Other diseases of the urinary system (N30-N39)

Other diseases of the urinary system (N30-N39)

ICD-10 codes N30-N39 are used to classify various diseases affecting the urinary system beyond kidney-specific conditions. This range covers a spectrum of bladder disorders, urethral diseases, urinary tract infections, and types of urinary incontinence.

Within this range, codes starting with N30 identify different forms of cystitis, including acute, chronic, interstitial, and radiation-induced cystitis with or without hematuria. For instance, common terms like “acute bacterial simple cystitis” correspond to N30.00, while “hemorrhagic cystitis” maps to N30.01. Codes beginning with N31 describe neuromuscular bladder dysfunctions such as uninhibited, reflex, or flaccid neuropathic bladder. Other bladder disorders, including “overactive bladder” (N32.81) and bladder-neck obstruction (N32.0), fall under the N32 section. The codes from N34 address urethritis and urethral syndromes, including “urethral abscess” (N34.0) and “nonspecific urethritis” (N34.1). Urethral strictures are classified within N35, with detailed options for post-traumatic and postinfective strictures differentiated by gender and site, such as “post-traumatic bulbous urethral stricture” (N35.011). The range also includes other urethral disorders like “urethral fistula” (N36.0) and “urethral caruncle” (N36.2). Lastly, N39 codes cover assorted urinary system disorders and urinary incontinence types, such as “stress incontinence” (N39.3), “urge incontinence” (N39.41), and unspecified urinary tract infections (N39.0). These codes, along with their synonyms, assist health professionals and coders in accurately identifying and documenting diverse urinary conditions for correct diagnosis and treatment tracking.

  • Diseases of the genitourinary system (N00–N99)

    • Other diseases of the urinary system (N30-N39)

        • Cystitis (N30)

        • 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

        • Urethral stricture (N35)

        • N35 Urethral stricture
        • N35.0 Post-traumatic urethral stricture
        • N35.01 Post-traumatic urethral stricture, male
        • N35.010 Post-traumatic urethral stricture, male, meatal
        • N35.011 Post-traumatic bulbous urethral stricture
        • N35.012 Post-traumatic membranous urethral stricture
        • N35.013 Post-traumatic anterior urethral stricture
        • N35.014 Post-traumatic urethral stricture, male, unspecified
        • N35.016 Post-traumatic urethral stricture, male, overlapping sites
        • N35.02 Post-traumatic urethral stricture, female
        • N35.021 Urethral stricture due to childbirth
        • N35.028 Other post-traumatic urethral stricture, female
        • N35.1 Postinfective urethral stricture, not elsewhere classified
        • N35.11 Postinfective urethral stricture, not elsewhere classified, male
        • N35.111 Postinfective urethral stricture, not elsewhere classified, male, meatal
        • N35.112 Postinfective bulbous urethral stricture, not elsewhere classified, male
        • N35.113 Postinfective membranous urethral stricture, not elsewhere classified, male
        • N35.114 Postinfective anterior urethral stricture, not elsewhere classified, male
        • N35.116 Postinfective urethral stricture, not elsewhere classified, male, overlapping sites
        • N35.119 Postinfective urethral stricture, not elsewhere classified, male, unspecified
        • N35.12 Postinfective urethral stricture, not elsewhere classified, female
        • N35.8 Other urethral stricture
        • N35.81 Other urethral stricture, male
        • N35.811 Other urethral stricture, male, meatal
        • N35.812 Other bulbous urethral stricture, male
        • N35.813 Other membranous urethral stricture, male
        • N35.814 Other anterior urethral stricture, male
        • N35.816 Other urethral stricture, male, overlapping sites
        • N35.819 Other urethral stricture, male, unspecified site
        • N35.82 Other urethral stricture, female
        • N35.9 Urethral stricture, unspecified
        • N35.91 Urethral stricture, unspecified, male
        • N35.911 Unspecified urethral stricture, male, meatal
        • N35.912 Unspecified bulbous urethral stricture, male
        • N35.913 Unspecified membranous urethral stricture, male
        • N35.914 Unspecified anterior urethral stricture, male
        • N35.916 Unspecified urethral stricture, male, overlapping sites
        • N35.919 Unspecified urethral stricture, male, unspecified site
        • N35.92 Unspecified urethral stricture, female

        • Other disorders of urethra (N36)

        • N36 Other disorders of urethra
        • N36.0 Urethral fistula
        • N36.1 Urethral diverticulum
        • N36.2 Urethral caruncle
        • N36.4 Urethral functional and muscular disorders
        • N36.41 Hypermobility of urethra
        • N36.42 Intrinsic sphincter deficiency (ISD)
        • N36.43 Combined hypermobility of urethra and intrinsic sphincter deficiency
        • N36.44 Muscular disorders of urethra
        • N36.5 Urethral false passage
        • N36.8 Other specified disorders of urethra
        • N36.9 Urethral disorder, unspecified

Instructional Notations

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

  • urinary infection (complicating):
  • abortion or ectopic or molar pregnancy O00 O07 O08.8
  • pregnancy, childbirth and the puerperium O23 O75.3 O86.2