Q63.0 Accessory kidney

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

Applies from Q63 Other congenital malformations of kidney

Excludes1 (never code together)

• congenital nephrotic syndrome (N04.-)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 753.3 Other specified anomalies of kidney (approximate)

Diagnosis Index entries for Q63.0

• Accessory (congenital) › kidney
• Double › kidney with double pelvis (renal)
• Duplication, duplex › kidney
• Malformation (congenital) › kidney › accessory
• Supernumerary (congenital) › kidney
• Triple › kidneys

Nearby codes

• Q63 Other congenital malformations of kidney
• Q63.0 Accessory kidney (this code)
• Q63.1 Lobulated, fused and horseshoe kidney
• Q63.2 Ectopic kidney
• Q63.3 Hyperplastic and giant kidney
• Q63.8 Other specified congenital malformations of kidney
• Q63.9 Congenital malformation of kidney, unspecified