2020 ICD-10-CM Diagnosis Code F81.2

Mathematics disorder

    2016 2017 2018 2019 2020 Billable/Specific Code
  • F81.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM F81.2 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of F81.2 - other international versions of ICD-10 F81.2 may differ.
Applicable To
  • Developmental acalculia
  • Developmental arithmetical disorder
  • Developmental Gerstmann's syndrome
  • Specific learning disorder, with impairment in mathematics
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as F81.2. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • acalculia NOS (
    ICD-10-CM Diagnosis Code R48.8

    Other symbolic dysfunctions

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Acalculia
    • Agraphia
    R48.8
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (F81.2) and the excluded code together.
  • arithmetical difficulties associated with a reading disorder (
    ICD-10-CM Diagnosis Code F81.0

    Specific reading disorder

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • 'Backward reading'
    • Developmental dyslexia
    • Specific learning disorder, with impairment in reading
    • Specific reading retardation
    Type 1 Excludes
    F81.0
    )
  • arithmetical difficulties associated with a spelling disorder (
    ICD-10-CM Diagnosis Code F81.81

    Disorder of written expression

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Specific learning disorder, with impairment in written expression
    • Specific spelling disorder
    F81.81
    )
  • arithmetical difficulties due to inadequate teaching (
    ICD-10-CM Diagnosis Code Z55.8

    Other problems related to education and literacy

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Problems related to inadequate teaching
    Z55.8
    )
The following code(s) above F81.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to F81.2:
  • F01-F99
    2020 ICD-10-CM Range F01-F99

    Mental, Behavioral and Neurodevelopmental disorders

    Includes
    • disorders of psychological development
    Type 2 Excludes
    • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
    Mental, Behavioral and Neurodevelopmental disorders
Approximate Synonyms
  • Developmental arithmetic disorder
  • Developmental disorder in mathematics
  • Specific learning disorder w impairment in mathematics
ICD-10-CM F81.2 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 886 Behavioral and developmental disorders

Convert F81.2 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to F81.2:
  • Acalculia R48.8
    ICD-10-CM Diagnosis Code R48.8

    Other symbolic dysfunctions

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Acalculia
    • Agraphia
    • developmental F81.2
  • Development
    • delayed R62.50
      - see also Delay, development
      ICD-10-CM Diagnosis Code R62.50

      Unspecified lack of expected normal physiological development in childhood

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Infantilism NOS
      • arithmetical skills F81.2
  • Disorder (of) - see also Disease
    • developmental F89
      ICD-10-CM Diagnosis Code F89

      Unspecified disorder of psychological development

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Developmental disorder NOS
      • Neurodevelopmental disorder NOS
      • learning F81.9
        ICD-10-CM Diagnosis Code F81.9

        Developmental disorder of scholastic skills, unspecified

          2016 2017 2018 2019 2020 Billable/Specific Code
        Applicable To
        • Knowledge acquisition disability NOS
        • Learning disability NOS
        • Learning disorder NOS
        • arithmetical F81.2
      • arithmetical skills F81.2
    • learning (specific) F81.9
      ICD-10-CM Diagnosis Code F81.9

      Developmental disorder of scholastic skills, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Knowledge acquisition disability NOS
      • Learning disability NOS
      • Learning disorder NOS
    • specific
      • arithmetical F81.2
  • Dyscalculia R48.8
    ICD-10-CM Diagnosis Code R48.8

    Other symbolic dysfunctions

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Acalculia
    • Agraphia
    • developmental F81.2
  • Gerstmann's syndrome R48.8
    ICD-10-CM Diagnosis Code R48.8

    Other symbolic dysfunctions

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Acalculia
    • Agraphia
    • developmental F81.2

ICD-10-CM Codes Adjacent To F81.2
F80.1 Expressive language disorder
F80.2 Mixed receptive-expressive language disorder
F80.4 Speech and language development delay due to hearing loss
F80.8 Other developmental disorders of speech and language
F80.81 Childhood onset fluency disorder
F80.82 Social pragmatic communication disorder
F80.89 Other developmental disorders of speech and language
F80.9 Developmental disorder of speech and language, unspecified
F81 Specific developmental disorders of scholastic skills
F81.0 Specific reading disorder
F81.2 Mathematics disorder
F81.8 Other developmental disorders of scholastic skills
F81.81 Disorder of written expression
F81.89 Other developmental disorders of scholastic skills
F81.9 Developmental disorder of scholastic skills, unspecified
F82 Specific developmental disorder of motor function
F84 Pervasive developmental disorders
F84.0 Autistic disorder
F84.2 Rett's syndrome
F84.3 Other childhood disintegrative disorder
F84.5 Asperger's syndrome

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.