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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  • Q55.7—

    Congenital vasocutaneous fistula

  • Q55.8—

    Other specified congenital malformations of male genital organs

  • Q55.9—

    Congenital malformation of male genital organ, unspecified

  • Q56.0—

    Hermaphroditism, not elsewhere classified

  • Q56.1—

    Male pseudohermaphroditism, not elsewhere classified

  • Q56.2—

    Female pseudohermaphroditism, not elsewhere classified

  • Q56.3—

    Pseudohermaphroditism, unspecified

  • Q56.4—

    Indeterminate sex, unspecified

  • Q60.0—

    Renal agenesis, unilateral

  • Q60.1—

    Renal agenesis, bilateral

  • Q60.2—

    Renal agenesis, unspecified

  • Q60.3—

    Renal hypoplasia, unilateral

  • Q60.4—

    Renal hypoplasia, bilateral

  • Q60.5—

    Renal hypoplasia, unspecified

  • Q60.6—

    Potter's syndrome

  • Q61.00—

    Congenital renal cyst, unspecified

  • Q61.01—

    Congenital single renal cyst

  • Q61.02—

    Congenital multiple renal cysts

  • Q61.11—

    Cystic dilatation of collecting ducts

  • Q61.19—

    Other polycystic kidney, infantile type

  • Q61.2—

    Polycystic kidney, adult type

  • 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

  • Q62.0—

    Congenital hydronephrosis

  • 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

  • Q62.31—

    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

  • Q62.60—

    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

  • Q63.0—

    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

  • Q64.0—

    Epispadias

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