ICD-10-CM code F81.2 describes specific disorder of arithmetical skills. Specific impairment in arithmetic skills not explained by intellectual disability (dyscalculia). It is a billable, specific code valid for claim submission. It is grouped under the “Intellectual & Developmental Disabilities” section of the mental, behavioral, and neurodevelopmental disorders chapter.
When to use F81.2
Use this group for intellectual disability, language and learning disorders, developmental coordination, and autism spectrum. Code severity where required and pair with developmental or therapy service codes as appropriate. For F81.2 specifically, specific impairment in arithmetic skills not explained by intellectual disability (dyscalculia).
Documentation & billing
Document the severity level (especially for intellectual disability and autism spectrum) and the developmental domains affected. Note any co-occurring conditions.
Common pitfalls
- Coding intellectual disability without a severity level when it can be assessed.
- Using a legacy code such as Asperger disorder (F84.5) when the current autism spectrum framework applies.
- Failing to specify the speech or language domain affected.
Common search terms for F81.2
Clinicians often look up F81.2 using plain-language terms. This code maps to:
Frequently asked questions
What is ICD-10-CM code F81.2?
Specific disorder of arithmetical skills. Specific impairment in arithmetic skills not explained by intellectual disability (dyscalculia).
Is F81.2 a billable ICD-10-CM code?
Yes. F81.2 (Specific disorder of arithmetical skills) is a billable, specific ICD-10-CM code that can be reported on a claim. Confirm the current official descriptor against the CDC code set and your payer’s policies before submitting.
What should I document to support F81.2?
Document the severity level (especially for intellectual disability and autism spectrum) and the developmental domains affected. Note any co-occurring conditions.