F81.2
ICD-10BillableMathematics disorder
Official ICD-10-CM descriptor (FY2026)
Mathematics disorder
F81.2 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Developmental acalculia
- Developmental arithmetical disorder
- Developmental Gerstmann's syndrome
- Specific learning disorder, with impairment in mathematics
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- acalculia NOS (R48.8)
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- 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)
Related codes in F81
Where this code sits
- Parent code
- F81
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.