All ICD10 Codes
Chapter 17

Q00–Q99: Congenital Malformations, Deformations and Chromosomal Abnormalities

Congenital Malformations, Deformations and Chromosomal Abnormalities diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • inborn errors of metabolism (E70-E88)
All CodesBillable Only
Internal Codes
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  • Q61.3—

    Polycystic kidney, unspecified

  • Q61.4—

    Renal dysplasia

  • Q61.5—

    Medullary cystic kidney

  • Q61.8—

    Other cystic kidney diseases

  • Q61.9—

    Cystic kidney disease, unspecified

  • Q62—

    Congenital obstructive defects of renal pelvis and congenital malformations of ureter

  • Q62.0—

    Congenital hydronephrosis

  • Q62.1—

    Congenital occlusion of ureter

  • Q62.10—

    Congenital occlusion of ureter, unspecified

  • Q62.11—

    Congenital occlusion of ureteropelvic junction

  • Q62.12—

    Congenital occlusion of ureterovesical orifice

  • Q62.2—

    Congenital megaureter

  • Q62.3—

    Other obstructive defects of renal pelvis and ureter

  • Q62.31—

    Congenital ureterocele, orthotopic

  • Q62.32—

    Cecoureterocele

  • Q62.39—

    Other obstructive defects of renal pelvis and ureter

  • Q62.4—

    Agenesis of ureter

  • Q62.5—

    Duplication of ureter

  • Q62.6—

    Malposition of ureter

  • Q62.60—

    Malposition of ureter, unspecified

  • Q62.61—

    Deviation of ureter

  • Q62.62—

    Displacement of ureter

  • Q62.63—

    Anomalous implantation of ureter

  • Q62.69—

    Other malposition of ureter

  • Q62.7—

    Congenital vesico-uretero-renal reflux

  • Q62.8—

    Other congenital malformations of ureter

  • Q63—

    Other congenital malformations of kidney

  • Q63.0—

    Accessory kidney

  • 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

  • Q64—

    Other congenital malformations of urinary system

  • Q64.0—

    Epispadias

  • Q64.1—

    Exstrophy of urinary bladder

  • Q64.10—

    Exstrophy of urinary bladder, unspecified

  • Q64.11—

    Supravesical fissure of urinary bladder

  • Q64.12—

    Cloacal exstrophy of urinary bladder

  • Q64.19—

    Other exstrophy of urinary bladder

  • Q64.2—

    Congenital posterior urethral valves

  • 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

  • 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

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