I/DD (Intellectual and Developmental Disabilities)
What it means
A combined term covering both intellectual disabilities and broader developmental disabilities (including autism). Often used in US disability services to define service eligibility.
Term details
Category: diagnosis
Regional use: us, general
Last source check: July 28, 2026
Source
Check this definition against aaidd.org. Open the source before making health, education, funding, or legal decisions because guidance can change.
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