---
title: "ICD-10-CM F84.0: Autistic disorder | BillingBrief"
description: "F84.0 is autistic disorder, which includes autism spectrum disorder, infantile autism and Kanner's syndrome. If Asperger's syndrome is documented, use F84.5…"
canonical: "https://billingbrief.com/icd10/f84.0/"
language: "en"
---

# F84.0 Autistic disorder

ICD-10-CM · [CMS code reference](#source)

F84.0 is autistic disorder, which includes autism spectrum disorder, infantile autism and Kanner's syndrome. If Asperger's syndrome is documented, use F84.5 instead.

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Also covers

-   Autism spectrum disorder
-   Infantile autism
-   Infantile psychosis
-   Kanner's syndrome

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   Asperger's syndrome ([F84.5](https://billingbrief.com/icd10/f84.5/))

### Code also

A second code may be needed. Sequencing depends on the encounter.

-   any associated medical condition and intellectual disabilities

## Related codes

-   [`F84.2` Rett's syndrome ICD-10-CM](https://billingbrief.com/icd10/f84.2/)
-   [`F84.3` Other childhood disintegrative disorder ICD-10-CM](https://billingbrief.com/icd10/f84.3/)
-   [`F84.5` Asperger's syndrome ICD-10-CM](https://billingbrief.com/icd10/f84.5/)
-   [`F84.8` Other pervasive developmental disorders ICD-10-CM](https://billingbrief.com/icd10/f84.8/)
-   [`F84.9` Pervasive developmental disorder, unspecified ICD-10-CM](https://billingbrief.com/icd10/f84.9/)

## Common questions

### What's the difference between F84.0 and F84.5?

F84.0 is autistic disorder, which includes autism spectrum disorder. F84.5 is Asperger's syndrome. F84.0 has an Excludes1 note for F84.5, so the two are not coded together; use the one the provider documents.

### Is F84.0 a billable code?

Yes. F84.0 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

F84 Pervasive developmental disorders

Chapter

Mental, behavioral and neurodevelopmental disorders

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).