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ALL MEDICAL CODES IN CATEGORY Congenital malformations of the nervous system (Q00-Q07)

2025 ICD-10-CM code Q04

Other congenital malformations of the brain.

Diastematomyelia is a congenital spinal cord malformation characterized by a longitudinal split in the spinal cord.

Anencephaly.

Congenital hydrocephalus, unspecified.

Sacral spina bifida without hydrocephalus.

Other specified congenital malformations of nervous system.

Microcephaly. Codefirst, if applicable, congenital Zika virus disease.

Arnold-Chiari syndrome without spina bifida or hydrocephalus.

Nasofrontal encephalocele; a protrusion of brain tissue through a defect in the skull at the fronto-nasal junction.

Other congenital hydrocephalus. This condition involves enlarged cerebrospinal fluid cavities in the head present from birth.

Arnold-Chiari syndrome with spina bifida.