Disorder of written expression

This code signifies a specific learning disorder characterized by significant impairment in the development of writing skills, including grammar, spelling, punctuation, and organization of written ideas. The individual's writing ability is substantially below what is expected for their chronological age, measured intelligence, and age-appropriate education. This impairment significantly interferes with academic achievement or activities of daily living requiring written communication.

Assign this code when documentation clearly indicates a diagnosed disorder of written expression, often identified through psychoeducational assessment. This diagnosis typically involves a discrepancy between intellectual ability and writing performance, ruling out other causes like intellectual disability, neurological conditions, or inadequate schooling. Look for terms such as "dysgraphia," "specific learning disorder with impairment in written expression," or "developmental writing disorder."

• Ensure the documentation specifies a disorder of written expression, not just poor writing skills due to lack of education or effort.
• Do not confuse with F81.0 (Specific reading disorder) or F81.2 (Mixed developmental receptive and expressive language disorder), although co-occurrence is possible.
• Always sequence this code as a primary diagnosis when it is the focus of the encounter, or as a secondary diagnosis when it impacts treatment or management of another condition.