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ICD-10 Guide
ICD-10 CodesF81.2

F81.2

Billable

Mathematics disorder

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 F81.2 is a billable code used to indicate a diagnosis of mathematics disorder.

Key Diagnostic Point:

Mathematics disorder, also known as dyscalculia, is a specific learning disability that affects an individual's ability to understand and manipulate numbers. This neurodevelopmental disorder is characterized by difficulties in number sense, memorization of arithmetic facts, and accurate and fluent calculation. Individuals with mathematics disorder may struggle with understanding mathematical concepts, performing calculations, and applying mathematical reasoning in everyday situations. The disorder can manifest in various ways, including difficulty with basic arithmetic operations, problems with understanding time and measurement, and challenges in recognizing patterns or relationships between numbers. It is important to note that mathematics disorder is not due to a lack of intelligence or inadequate educational opportunities but is often associated with other neurodevelopmental disorders such as autism spectrum disorder (ASD) and communication disorders. Early identification and intervention are crucial for improving outcomes, and tailored educational strategies can help individuals develop their mathematical skills and confidence.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation of symptoms among individuals
  • Overlap with other learning disabilities and neurodevelopmental disorders
  • Need for comprehensive assessment to confirm diagnosis
  • Potential co-occurrence with other conditions like ADHD or ASD

Audit Risk Factors

  • Inadequate documentation of educational assessments
  • Failure to document co-occurring conditions
  • Lack of evidence for interventions provided
  • Misclassification of severity or type of learning disability

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed developmental history, educational assessments, and intervention strategies.

Common Clinical Scenarios

Assessment of a child struggling with math in school, referral for educational support.

Billing Considerations

Consideration of co-occurring developmental disorders and the impact on learning.

Psychology

Documentation Requirements

Comprehensive psychological evaluation, including cognitive testing and academic performance.

Common Clinical Scenarios

Diagnosis of mathematics disorder in a child with suspected learning disabilities.

Billing Considerations

Use of standardized testing to differentiate from other learning disorders.

Coding Guidelines

Inclusion Criteria

Use F81.2 When
  • According to ICD
  • 10 guidelines, F81
  • 2 should be used when there is clear evidence of a mathematics disorder that significantly impairs academic performance
  • It is essential to document the specific difficulties experienced by the patient and any interventions attempted

Exclusion Criteria

Do NOT use F81.2 When
  • Exclusion criteria include general cognitive impairments and lack of educational opportunity

Related ICD-10 Codes

Related CPT Codes

96101CPT Code

Psychological testing

Clinical Scenario

Used for comprehensive evaluation of learning disabilities.

Documentation Requirements

Detailed report of testing results and recommendations.

Specialty Considerations

Psychologists should ensure tests are age-appropriate and relevant.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of learning disabilities, including mathematics disorder. This specificity aids in better understanding and treatment of the condition, facilitating targeted interventions and educational support.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of learning disabilities, including mathematics disorder. This specificity aids in better understanding and treatment of the condition, facilitating targeted interventions and educational support.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of learning disabilities, including mathematics disorder. This specificity aids in better understanding and treatment of the condition, facilitating targeted interventions and educational support.

Resources

Clinical References

  • •
    Dyscalculia: A Guide for Parents and Educators

Coding & Billing References

  • •
    Dyscalculia: A Guide for Parents and Educators

Frequently Asked Questions

What are the main symptoms of mathematics disorder?

Symptoms include difficulty understanding numbers, trouble with basic arithmetic, challenges in memorizing math facts, and problems applying math concepts in real-life situations.