ICD-10 diagnosis code

F81.2 Specific disorder of arithmetical skills

This page in Swedish

F81.2 is the ICD-10 code for Specific disorder of arithmetical skills. It is a four-character subcategory of F81 (Specific developmental disorders of scholastic skills), the most specific level in the WHO edition. It belongs to the block F80–F89 (Disorders of psychological development) in Chapter V, Mental and behavioural disorders.

Code type
Subcategory (4 characters)
Chapter
V · F00–F99
Classification
WHO ICD-10, 2019 version

Definition

Involves a specific impairment in arithmetical skills that is not solely explicable on the basis of general mental retardation or of inadequate schooling. The deficit concerns mastery of basic computational skills of addition, subtraction, multiplication, and division rather than of the more abstract mathematical skills involved in algebra, trigonometry, geometry, or calculus.

What F81.2 includes

Conditions and terms that are coded here.

  • Developmental:
    • acalculia
    • arithmetical disorder
    • Gerstmann syndrome

What F81.2 excludes

Conditions that look similar but belong under another code.

  • acalculia NOS R48.8
  • arithmetical difficulties:
    • associated with a reading or spelling disorder F81.3
    • due to inadequate teaching Z55.8

F81.2 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

F81.2Specifik räknesvårighet

NorwayICD-10-NO

F81.2Spesifikk forstyrrelse i regneferdighet

DenmarkICD-10-DK

DF812Specifik regneforstyrrelse

FinlandICD-10-FI

F81.2Laskemiskyvyn häiriö

GermanyICD-10-GM

F81.2Rechenstörung

FranceICD-10-FR

F81.2Trouble spécifique de l'acquisition de l'arithmétique

NetherlandsICD-10-NL

F81.2specifieke stoornis van rekenvaardigheden

United StatesICD-10-CM

F81.2Mathematics disorder

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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