Q64.4 Malformation of urachus

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

Applicable to

• Cyst of urachus
• Patent urachus
• Prolapse of urachus

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 753.7 Anomalies of urachus

Diagnosis Index entries for Q64.4

• Anomaly, anomalous (congenital) (unspecified type) › urachus
• Cyst (colloid) (mucous) (simple) (retention) › allantoic
• Cyst (colloid) (mucous) (simple) (retention) › urachus, congenital
• Deformity › urachus, congenital
• Deformity › urinary tract (congenital) › urachus
• Fistula (cutaneous) › urachus, congenital
• Patent › urachus
• Persistence, persistent (congenital) › umbilical sinus
• Persistence, persistent (congenital) › urachus
• Prolapse, prolapsed › urachus, congenital
• Remnant › urachus
• Sinus › urachus
• Urachus › patent or persistent

Nearby codes

• Q64.3 Other atresia and stenosis of urethra and bladder neck
• Q64.31 Congenital bladder neck obstruction
• Q64.32 Congenital stricture of urethra
• Q64.33 Congenital stricture of urinary meatus
• Q64.39 Other atresia and stenosis of urethra and bladder neck
• Q64.4 Malformation of urachus (this code)
• Q64.5 Congenital absence of bladder and urethra
• Q64.6 Congenital diverticulum of bladder
• Q64.7 Other and unspecified congenital malformations of bladder and urethra
• Q64.70 Unspecified congenital malformation of bladder and urethra
• Q64.71 Congenital prolapse of urethra