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 retardation (F70-F79)
 * F80.3 Acquired aphasia with epilepsy [Landau-Kleffner]
 * Excludes1: aphasia NOS (R47.01)
 * Excludes2: pervasive developmental disorders (F84.-)
 * F80.4 Speech and language development delay due to hearing loss
 * Code also type of hearing loss (H90.-, H91.-)
 * F80.8 Other developmental disorders of speech or language
 * F80.9 Developmental disorder of speech or language, unspecified
 * Communication disorder NOS
 * Language disorder NOS

F81 Specific developmental disorders of scholastic skills

 * F81.0 Specific reading disorder
 * "Backward reading"
 * Developmental dyslexia
 * Specific reading retardation
 * Excludes1: alexia NOS (R48.0)
 * dyslexia NOS (R48.0)
 * F81.2 Mathematics disorder
 * Developmental acalculia
 * Developmental arithmetical disorder
 * Developmental Gerstmann's syndrome
 * Excludes1: acalculia NOS (R48.8)
 * Excludes2: 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)
 * F81.8 Other developmental disorders of scholastic skills
 * F81.81 Disorder of 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

F82 Specific developmental disorder of motor function

 * Includes: clumsy child syndrome
 * developmental coordination disorder
 * developmental dyspraxia
 * Excludes1: abnormalities of gait and mobility (R26.-)
 * lack of coordination (R27.-)
 * Excludes2: lack of coordination secondary to mental retardation (F70-F79)

F84 Pervasive developmental disorders

 * Use