F81.2 vs Z55.8
F81.2 (Mathematics disorder) compared with Z55.8 (Other problems related to education and literacy), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. F81.2 carries an Excludes2 note covering Z55.8: “arithmetical difficulties due to inadequate teaching (Z55.8)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| F81.2Mathematics disorder | Z55.8Other problems related to education and literacy | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Mathematics disorder is a billable ICD-10-CM diagnosis code (F81.2). | Other problems related to education and literacy is a billable ICD-10-CM diagnosis code (Z55.8). |
| Includes | Developmental acalculia Developmental arithmetical disorder Developmental Gerstmann's syndrome Specific learning disorder, with impairment in mathematics | Problems related to inadequate teaching |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources