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Abnormal neuronal migration

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Any condition caused by abnormal migration of neuronal cells during the antenatal period. These conditions may present with poor muscle tone and motor function, seizures, developmental delays, mental retardation, failure to grow and thrive, difficulties with feeding, swelling in the extremities or microcephaly.

exclusions

• Lissencephaly  (LD20.1)

sections/codes in this section (LA05.5-LA05.5)

• Polymicrogyria  (LA05.50)
• Cortical dysplasia  (LA05.51)
• Other specified abnormal neuronal migration  (LA05.5Y)
• Abnormal neuronal migration, unspecified  (LA05.5Z)

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