ICD-10 Code F84.5 – Asperger’s syndrome (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F84.5 – Asperger’s syndrome
What it is
F84.5 identifies Asperger’s syndrome, a neurodevelopmental condition on the autism spectrum. It is used for individuals with persistent social communication differences and restricted or repetitive patterns of behavior.
Clinical signs
Clinical features commonly include difficulty with social interaction, limited reciprocity, and intense, focused interests. Speech and intellectual development are often otherwise typical; clinical features vary; refer to documentation.
When to use this code
Use F84.5 when the record specifically documents Asperger’s syndrome or a comparable autism-spectrum diagnosis with this label. Apply it for outpatient, inpatient, or historical problem-list coding when the clinician confirms the condition. Check documentation if the note only says autism spectrum disorder without further detail.
Do not use for
Do not use this code for nonspecific developmental delay, isolated speech delay, or social difficulties without a documented Asperger’s diagnosis. Do not substitute it for other autism spectrum conditions unless the record supports that classification.
Coding tip
Code only when the provider explicitly documents Asperger’s syndrome; otherwise, query or check documentation.