14. CONGENITAL ANOMALIES (740-759)
742 Other congenital anomalies of nervous system
Excludes:
congenital central alveolar hypoventilation syndrome (327.25)
742.0: Encephalocele
Encephalocystocele
Encephalomyelocele
Hydroencephalocele
Hydromeningocele, cranial
Meningocele, cerebral
Meningoencephalocele
742.1: Microcephalus
Hydromicrocephaly
Micrencephaly
742.2: Reduction deformities of brain
Absence of part of brain
Agenesis of part of brain
Agyria
Aplasia of part of brain
Arhinencephaly
Holoprosencephaly
Hypoplasia of part of brain
Microgyria
742.3: Congenital hydrocephalus
Aqueduct of Sylvius:
anomaly
obstruction, congenital
stenosis
Atresia of foramina of Magendie and Luschka
Hydrocephalus in newborn
Excludes:
hydrocephalus:
acquired (331.3-331.4)
due to congenital toxoplasmosis (771.2)
with any condition classifiable to 741.9 (741.0)
742.4: Other specified anomalies of brain
Congenital cerebral cyst
Macroencephaly
Macrogyria
Megalencephaly
Multiple anomalies of brain NOS
Porencephaly
Ulegyria
742.5: Other specified anomalies of spinal cord
742.8: Other specified anomalies of nervous system
Agenesis of nerve
Displacement of brachial plexus
Familial dysautonomia
Jaw-winking syndrome
Marcus-Gunn syndrome
Riley-Day syndrome
Excludes:
neurofibromatosis (237.70-237.79)
742.9: Unspecified anomaly of brain, spinal cord, and nervous system
Anomaly of brain, nervous system, and spinal cord
Congenital, of brain, nervous system, and spinal cord:
disease of brain, nervous system, and spinal cord
lesion of brain, nervous system, and spinal cord
Deformity of brain, nervous system, and spinal cord

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