F70-F79 — Intellectual Disabilities
ICD-10-CM codes F70-F79 cover intellectual disabilities, within mental, behavioral and neurodevelopmental disorders. The block holds 9 codes across 6 categories, of which 7 are billable and 2 are header codes that cannot be submitted on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- borderline intellectual functioning, IQ above 70 to 84 (R41.83)
Code first
The underlying condition must be sequenced before this code.
- any associated physical or developmental disorders
What else to watch in F70-F79
- 7 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.