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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  • Q72.52—

    Longitudinal reduction defect of left tibia

  • Q72.53—

    Longitudinal reduction defect of tibia, bilateral

  • Q72.6—

    Longitudinal reduction defect of fibula

  • Q72.60—

    Longitudinal reduction defect of unspecified fibula

  • Q72.61—

    Longitudinal reduction defect of right fibula

  • Q72.62—

    Longitudinal reduction defect of left fibula

  • Q72.63—

    Longitudinal reduction defect of fibula, bilateral

  • Q72.7—

    Split foot

  • Q72.70—

    Split foot, unspecified lower limb

  • Q72.71—

    Split foot, right lower limb

  • Q72.72—

    Split foot, left lower limb

  • Q72.73—

    Split foot, bilateral

  • Q72.8—

    Other reduction defects of lower limb

  • Q72.81—

    Congenital shortening of lower limb

  • Q72.811—

    Congenital shortening of right lower limb

  • Q72.812—

    Congenital shortening of left lower limb

  • Q72.813—

    Congenital shortening of lower limb, bilateral

  • Q72.819—

    Congenital shortening of unspecified lower limb

  • Q72.89—

    Other reduction defects of lower limb

  • Q72.891—

    Other reduction defects of right lower limb

  • Q72.892—

    Other reduction defects of left lower limb

  • Q72.893—

    Other reduction defects of lower limb, bilateral

  • Q72.899—

    Other reduction defects of unspecified lower limb

  • Q72.9—

    Unspecified reduction defect of lower limb

  • Q72.90—

    Unspecified reduction defect of unspecified lower limb

  • Q72.91—

    Unspecified reduction defect of right lower limb

  • Q72.92—

    Unspecified reduction defect of left lower limb

  • Q72.93—

    Unspecified reduction defect of lower limb, bilateral

  • Q73—

    Reduction defects of unspecified limb

  • Q73.0—

    Congenital absence of unspecified limb(s)

  • Q73.1—

    Phocomelia, unspecified limb(s)

  • Q73.8—

    Other reduction defects of unspecified limb(s)

  • Q74—

    Other congenital malformations of limb(s)

  • Q74.0—

    Other congenital malformations of upper limb(s), including shoulder girdle

  • Q74.1—

    Congenital malformation of knee

  • Q74.2—

    Other congenital malformations of lower limb(s), including pelvic girdle

  • Q74.3—

    Arthrogryposis multiplex congenita

  • Q74.8—

    Other specified congenital malformations of limb(s)

  • Q74.9—

    Unspecified congenital malformation of limb(s)

  • Q75—

    Other congenital malformations of skull and face bones

  • Q75.0—

    Craniosynostosis

  • Q75.00—

    Craniosynostosis, unspecified

  • Q75.001—

    Craniosynostosis, unspecified type, unilateral

  • Q75.002—

    Craniosynostosis, unspecified type, bilateral

  • Q75.009—

    Craniosynostosis, unspecified

  • Q75.01—

    Sagittal craniosynostosis

  • Q75.02—

    Coronal craniosynostosis

  • Q75.021—

    Coronal craniosynostosis, unilateral

  • Q75.022—

    Coronal craniosynostosis, bilateral

  • Q75.029—

    Coronal craniosynostosis, unspecified

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