F84.9 ICD-10-CM

ICD-10-CM code F84.9 describes pervasive developmental disorder, unspecified. Autism-spectrum presentation where the specific type is not documented. It is a billable, specific code valid for claim submission. It is grouped under the “Intellectual & Developmental Disabilities” section of the mental, behavioral, and neurodevelopmental disorders chapter.

When to use F84.9

Use this group for intellectual disability, language and learning disorders, developmental coordination, and autism spectrum. Code severity where required and pair with developmental or therapy service codes as appropriate. For F84.9 specifically, autism-spectrum presentation where the specific type is not documented.

Documentation & billing

Document the severity level (especially for intellectual disability and autism spectrum) and the developmental domains affected. Note any co-occurring conditions.

Common pitfalls

• Coding intellectual disability without a severity level when it can be assessed.
• Using a legacy code such as Asperger disorder (F84.5) when the current autism spectrum framework applies.
• Failing to specify the speech or language domain affected.

Common search terms for F84.9

Clinicians often look up F84.9 using plain-language terms. This code maps to:

Frequently asked questions