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F81
Specific developmental disorders of scholastic skills
F81.0
Specific reading disorder
  • alexia NOS (R48.0)
  • dyslexia NOS (R48.0)
  • 'Backward reading'
  • Developmental dyslexia
  • Specific learning disorder, with impairment in reading
  • Specific reading retardation
F81.2
Mathematics disorder
  • acalculia NOS (R48.8)
  • arithmetical difficulties associated with a reading disorder (F81.0)
  • arithmetical difficulties associated with a spelling disorder (F81.81)
  • arithmetical difficulties due to inadequate teaching (Z55.8)
  • Developmental acalculia
  • Developmental arithmetical disorder
  • Developmental Gerstmann's syndrome
  • Specific learning disorder, with impairment in mathematics
F81.8
Other developmental disorders of scholastic skills
F81.81
Disorder of written expression
  • Specific learning disorder, with impairment in written expression
  • Specific spelling disorder
F81.89
Other developmental disorders of scholastic skills
F81.9
Developmental disorder of scholastic skills, unspecified
  • Knowledge acquisition disability NOS
  • Learning disability NOS
  • Learning disorder NOS