N36.0 Urethral fistula

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Urethroperineal fistula
• Urethrorectal fistula
• Urinary fistula NOS

Excludes1 (never code together)

• urethroscrotal fistula (N50.89)
• urethrovaginal fistula (N82.1)
• urethrovesicovaginal fistula (N82.1)

MS-DRG index

Defines the logic of DRG(s) 698-700 in MDC 11.

Approximate ICD-9-CM (GEMs)

• 599.1 Urethral fistula

Diagnosis Index entries for N36.0

• Fistula (cutaneous) › perineum, perineal (with urethral involvement) NEC
• Fistula (cutaneous) › rectourethral
• Fistula (cutaneous) › urethra
• Fistula (cutaneous) › urethroperineal
• Fistula (cutaneous) › urethrorectal
• Fistula (cutaneous) › urinary (tract) (persistent) (recurrent)

Nearby codes

• N36 Other disorders of urethra
• N36.0 Urethral fistula (this code)
• 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)