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7q31 microdeletion syndrome

Disease definition

7q31 microdeletion syndrome is a rare chromosomal anomaly characterized by speech and language disorder, predominantly presenting as an apraxia of speech, sometimes associated with oral motor dyspraxia, dysarthria, receptive and expressive language disorder, and hearing loss. Individuals with larger deletions in this region have also been reported to display intellectual disability and autism.


Classification level: Disorder
  • Synonym(s):
    • Del(7)(q31)
    • Monosomy 7q31
  • Prevalence: <1 / 1 000 000
  • Inheritance: Not applicable or Unknown 
  • Age of onset: Infancy, Neonatal
  • ICD-10: Q93.5
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information


Additional information

Further information on this disease

Specialised Social Services

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