ICD-10 Code F80.1 – Expressive language disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F80.1 – Expressive language disorder
What it is
F80.1 identifies a developmental language disorder where a person has difficulty expressing thoughts in words or sentences. Understanding may be relatively better than spoken output, but documentation should confirm the expressive deficit.
Clinical signs
Common findings include limited vocabulary, short or incomplete sentences, and trouble finding words or forming age-appropriate speech. Clinical features vary; refer to documentation.
When to use this code
Use F80.1 when the record documents expressive language impairment as the primary diagnosis, especially in children with delayed spoken language development. Apply it when the clinician distinguishes expressive difficulty from hearing loss, global developmental delay, or another neurologic condition. Check documentation if the cause is unclear.
Do not use for
Do not use this code for articulation problems, stuttering, or language issues better explained by another developmental, neurologic, or sensory disorder. If the chart does not clearly support expressive language disorder, check documentation.
Coding tip
Confirm that the provider specifically documents expressive language disorder rather than a nonspecific speech delay or mixed receptive-expressive problem.