ICD-10 code lookup
ICD-10-CM
Congenital malformations, deformations and chromosomal abnormalities
Chapter 17, Q00-Q99. CDC FY2027 file dated June 16, 2026.
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Codes
- Q00Anencephaly and similar malformations
- Q00.0Anencephaly
- Q00.1Craniorachischisis
- Q00.2Iniencephaly
- Q01Encephalocele
- Q01.0Frontal encephalocele
- Q01.1Nasofrontal encephalocele
- Q01.2Occipital encephalocele
- Q01.8Encephalocele of other sites
- Q01.9Encephalocele, unspecified
- Q02Microcephaly
- Q03Congenital hydrocephalus
- Q03.0Malformations of aqueduct of Sylvius
- Q03.1Atresia of foramina of Magendie and Luschka
- Q03.8Other congenital hydrocephalus
- Q03.9Congenital hydrocephalus, unspecified
- Q04Other congenital malformations of brain
- Q04.0Congenital malformations of corpus callosum
- Q04.1Arhinencephaly
- Q04.2Holoprosencephaly
- Q04.3Other reduction deformities of brain
- Q04.4Septo-optic dysplasia of brain
- Q04.5Megalencephaly
- Q04.6Congenital cerebral cysts
- Q04.8Other specified congenital malformations of brain
- Q04.9Congenital malformation of brain, unspecified
- Q05Spina bifida
- Q05.0Cervical spina bifida with hydrocephalus
- Q05.1Thoracic spina bifida with hydrocephalus
- Q05.2Lumbar spina bifida with hydrocephalus
- Q05.3Sacral spina bifida with hydrocephalus
- Q05.4Unspecified spina bifida with hydrocephalus
- Q05.5Cervical spina bifida without hydrocephalus
- Q05.6Thoracic spina bifida without hydrocephalus
- Q05.7Lumbar spina bifida without hydrocephalus
- Q05.8Sacral spina bifida without hydrocephalus
- Q05.9Spina bifida, unspecified
- Q06Other congenital malformations of spinal cord
- Q06.0Amyelia
- Q06.1Hypoplasia and dysplasia of spinal cord