ICD-10 Code F80.9 – Developmental disorder of speech and language, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F80.9 – Developmental disorder of speech and language, unspecified
What it is
F80.9 identifies a developmental speech or language disorder when the record does not specify the exact type. Use it for persistent communication delay or impairment that is not otherwise classified.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see delayed speech, limited vocabulary, reduced sentence formation, or difficulty understanding or expressing language compared with age expectations.
When to use this code
Use this code when the clinician documents a developmental disorder of speech and language but does not name a specific subtype. It also fits cases where the assessment confirms a communication delay, yet the note remains nonspecific. Check documentation if autism, hearing loss, or another cause is identified.
Do not use for
Do not use F80.9 for isolated articulation problems, stuttering, or language problems clearly linked to another condition. If the chart specifies a different speech or language disorder, code that diagnosis instead.
Coding tip
Match the code to the provider’s wording and avoid assuming a more specific developmental speech-language diagnosis.