ICD-10-CM code F73 describes profound intellectual disability. IQ below 20–25; highly dependent on care for daily activities. 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 F73
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 F73 specifically, iq below 20–25; highly dependent on care for daily activities.
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 F73
Clinicians often look up F73 using plain-language terms. This code maps to:
Frequently asked questions
What is ICD-10-CM code F73?
Profound intellectual disability. IQ below 20–25; highly dependent on care for daily activities.
Is F73 a billable ICD-10-CM code?
Yes. F73 (Profound intellectual disability) is a billable, specific ICD-10-CM code that can be reported on a claim. Confirm the current official descriptor against the CDC code set and your payer’s policies before submitting.
What should I document to support F73?
Document the severity level (especially for intellectual disability and autism spectrum) and the developmental domains affected. Note any co-occurring conditions.