Dyslexia and alexia

This code represents a specific learning disorder characterized by difficulties with accurate and/or fluent word recognition, poor decoding, and poor spelling abilities. It reflects a neurodevelopmental condition impacting reading acquisition, independent of intellectual ability. Alexia, a form of acquired dyslexia, is also encompassed here.

Use this code when documentation clearly indicates a diagnosis of dyslexia, a specific learning disability affecting reading. This includes developmental dyslexia in children and adults, as well as acquired alexia resulting from neurological damage. Supporting documentation typically includes psychological evaluations, educational assessments, or neurological reports confirming the diagnosis.

• Do not use this code for general reading difficulties without a formal diagnosis of dyslexia.
• Distinguish from other specific learning disorders, such as dyscalculia (F81.2) or dysgraphia (F81.81), which have separate codes.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter, or as a secondary diagnosis when it is a co-morbidity impacting treatment or management.