ICD-10-CM 2027
ICD-10 code for developmental dyscalculia
From the official ICD-10-CM alphabetic index entry “Dyscalculia › developmental”. Page updated September 29, 2026.
About coding developmental dyscalculia
The ICD-10-CM code for developmental dyscalculia is F81.2 (Mathematics disorder).
Within F81 (specific developmental disorders of scholastic skills), F81.2 is specifically for Mathematics disorder. Related codes cover specific reading disorder (F81.0), other developmental disorders of scholastic skills (F81.8) and developmental disorder of scholastic skills, unspecified (F81.9).
Don't report F81.2 together with the conditions in its Excludes1 note: acalculia NOS (R48.8).
The conditions in its Excludes2 note aren't part of F81.2, but may be coded alongside it if the patient has both: arithmetical difficulties associated with a reading disorder (F81.0), arithmetical difficulties associated with a spelling disorder (F81.81) and arithmetical difficulties due to inadequate teaching (Z55.8).
Don't confuse with (Excludes1 for F81.2)
- acalculia NOS (R48.8)
Common questions about developmental dyscalculia ICD-10 codes
What is the ICD-10 code for developmental dyscalculia?
- F81.2 — Mathematics disorder.
Is F81.2 billable?
- Yes. F81.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F81.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F81.2 as a principal diagnosis.
Is F81.2 a CC or MCC?
- No. F81.2 is neither a CC nor an MCC under MS-DRG v44.0.