ICD-10-CM 2027
ICD-10 code for Dyscalculia
From the official ICD-10-CM alphabetic index entry “Dyscalculia”. Page updated September 29, 2026.
About coding Dyscalculia
The ICD-10-CM code for Dyscalculia is R48.8 (Other symbolic dysfunctions). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R48.8.
Within R48, choose R48.8 (Other symbolic dysfunctions) only when documentation doesn't support a more specific option: dyslexia and alexia (R48.0), agnosia (R48.1), apraxia (R48.2), visual agnosia (R48.3) and unspecified symbolic dysfunctions (R48.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 886 (Behavioral and Developmental Disorders, relative weight 1.8678), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Dyscalculia codes (official index)
- developmental F81.2 — Mathematics disorder
Common questions about Dyscalculia ICD-10 codes
What is the ICD-10 code for Dyscalculia?
- R48.8 — Other symbolic dysfunctions. More specific codes apply when the documentation supports them: F81.2.
What is the ICD-10 code for developmental dyscalculia?
- F81.2 — Mathematics disorder.
Is R48.8 billable?
- Yes. R48.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R48.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R48.8 as a principal diagnosis.
Is R48.8 a CC or MCC?
- No. R48.8 is neither a CC nor an MCC under MS-DRG v44.0.