Learning the Lingo

Acronyms

The intellectual and developmental disabilities (IDD) community uses many acronyms, which can sometimes feel overwhelming. This page is here to help. Whether you’re a self-advocate, family member, professional, or just looking to learn more, you’ll find clear explanations of key terms used in services, support, and advocacy.

Want to download the full list of IDD Community Acronyms? Click here.

IDPH

Illinois Department of Public Health

lEP

Individual Education Plan

IRWE

Impairment Related Work Expenses

ISBE

Illinois State Board of Education

ISC

Individual Service Coordination

ISP

Individual Support Plan

ISSA

Individual Service and Support Advocacy

ITP

Individual Treatment Plan (mental health)

MCO

Managed Care Organization

MH

Mental Health