ICD-11 classes
20 Developmental anomalies
Structural developmental anomalies primarily affecting one...
Structural developmental anomalies of the nervous system
LA05 — Cerebral structural developmental anomalies
LA05.5 — Abnormal neuronal migration

ICD-11 LA05.5 — Abnormal neuronal migration

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.

The diagnosis includes nothing.

It excludes 1 item.

  • Lissencephaly (LD20.1)

Diagnosis with code LA05.5 contains 4 clarifying diagnoses:

  1. LA05.50 — Polymicrogyria
  2. LA05.51 — Cortical dysplasia
  3. LA05.5Y — Other specified abnormal neuronal migration
  4. LA05.5Z — Abnormal neuronal migration, unspecified

The diagnosis is coded elsewhere:

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