Q64.79 Other congenital malformations of bladder and urethra

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Q64.7 Other and unspecified congenital malformations of bladder and urethra

Excludes1 (never code together)

• congenital prolapse of bladder (mucosa) (Q79.4)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 753.8 Other specified anomalies of bladder and urethra (approximate)

Code annotations containing back-references to Q64.79

Back-references to Q64.7

• Type 1 Excludes: N36.8 Other specified disorders of urethra ("congenital urethrocele (Q64.7)")

Diagnosis Index entries for Q64.79

• Accessory (congenital) › bladder
• Accessory (congenital) › urethra
• Anomaly, anomalous (congenital) (unspecified type) › bladder › specified type NEC
• Anomaly, anomalous (congenital) (unspecified type) › meatus urinarius NEC
• Anomaly, anomalous (congenital) (unspecified type) › paraurethral ducts
• Anomaly, anomalous (congenital) (unspecified type) › urethra › specified type NEC
• Anomaly, anomalous (congenital) (unspecified type) › vesicourethral orifice
• Contraction (s), contracture, contracted › hourglass › bladder › congenital
• Cyst (colloid) (mucous) (simple) (retention) › congenital NEC › periurethral (tissue)
• Deformity › bladder (neck) (trigone) (sphincter) (acquired) › congenital
• Deformity › urethra (congenital)
• Deformity › vesicourethral orifice (acquired) › congenital NEC
• Dilatation › bladder (sphincter) › congenital
• Distortion (s) (congenital) › bladder
• Distortion (s) (congenital) › urethra
• Diverticulum, diverticula (multiple) › urethra (acquired) › congenital
• Double › bladder
• Duplication, duplex › bladder
• Fistula (cutaneous) › rectovesical › congenital
• Fistula (cutaneous) › urethra › congenital
• Fistula (cutaneous) › vesicorectal › congenital
• Hernia, hernial (acquired) (recurrent) › urethra, congenital
• Hernia, hernial (acquired) (recurrent) › urinary meatus, congenital
• Malformation (congenital) › bladder
• Malformation (congenital) › urethra
• Paramedial urethrovesical orifice
• Paraurethral duct

Nearby codes

• Q64.71 Congenital prolapse of urethra
• Q64.72 Congenital prolapse of urinary meatus
• Q64.73 Congenital urethrorectal fistula
• Q64.74 Double urethra
• Q64.75 Double urinary meatus
• Q64.79 Other congenital malformations of bladder and urethra (this code)
• Q64.8 Other specified congenital malformations of urinary system
• Q64.9 Congenital malformation of urinary system, unspecified