ICD-10 Code F81.0 – Specific reading disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F81.0 – Specific reading disorder
What it is
F81.0 identifies a specific learning disorder affecting reading skills. Use it when a patient has persistent difficulty recognizing words, reading fluently, or understanding written text that is not explained by general intellectual disability or inadequate schooling.
Clinical signs
Common findings include slow, inaccurate reading, poor decoding, and trouble spelling words that were previously read. Clinical features vary; refer to documentation for the pattern, severity, and whether the concern is confirmed by formal assessment.
When to use this code
Use F81.0 when the record documents a diagnosed reading disorder, dyslexia, or specific impairment of reading. It is appropriate when the clinician links the reading difficulty to a neurodevelopmental learning disorder rather than to vision problems, language delay, or temporary educational issues.
Do not use for
Do not use this code for isolated poor grades, nonspecific learning problems, or reading difficulty caused by another condition. Check documentation if the chart does not clearly distinguish a reading disorder from broader academic, cognitive, or neurologic concerns.
Coding tip
Confirm that the provider documents a specific reading disorder diagnosis, not just “trouble reading,” before assigning F81.0.