F84.0 vs F84.5
F84.0 (Autistic disorder) compared with F84.5 (Asperger's syndrome), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. F84.0 carries an Excludes1 note covering F84.5: “Asperger's syndrome (F84.5)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| F84.0Autistic disorder | F84.5Asperger's syndrome | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) |
| Definition | Autistic disorder is a billable ICD-10-CM diagnosis code (F84.0). | Asperger's syndrome is a billable ICD-10-CM diagnosis code (F84.5). |
| Includes | Autism spectrum disorder Infantile autism Infantile psychosis Kanner's syndrome | Asperger's disorder Autistic psychopathy Schizoid disorder of childhood |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources