Local IDD Authority (LIDDA)

Local intellectual and developmental disability authorities (LIDDAs) serve as the point of entry for publicly funded intellectual and developmental disability (IDD) programs, whether the program is provided by a public or private entity. They:

  • provide or contract to provide an array of services and supports for people with intellectual and developmental disabilities;
  • are responsible for enrolling eligible individuals into the following Medicaid programs:
  • are responsible for Permanency Planning for individuals under 22 years of age who live in an ICF/IID, state supported living center or a residential setting of the HCS Program.

Provider Communications

Read news, information letters (ILs) & provider letters (PLs).

Performance Contract

The LIDDA Performance Contract can be found on the Contracts Awarded by HHS webpage.

Email HHS Open Records to request unredacted copies.


Become a Certified Authorized Provider to Conduct a DID

LIDDAs can request that the Texas Health and Human Services Commission certify an employee other than a licensed psychologist to conduct a determination of intellectual disability (DID). This can be especially helpful to LIDDAs that are facing an increase in the number of DIDs to be completed with the launch of Community First Choice.


Information & Provider Letters

Case-sensitive. Use commas to separate multiple entries.
Note: These files are in PDF format unless otherwise noted.
Number Title/Notes Date Published
IL 2024-08 Employment Assistance, Supported Employment and Prevocational Services Required On-Site Assessments for Home and Community-Based Services (HCBS) Settings Compliance
IL 2024-05 Preparing for the Upcoming Fiscal Year 2024 Fee-for-Service Claims Billing Closeout
IL 2024-04 Changes to HHSC-Approved Diagnostic Codes for Persons with Related Conditions List

Note: Replaces IL 2021-44

IL 2023-41 Employment First Discovery Tool
IL 2023-39 Individual Plan of Care (IPC) Revision Process to Update Attendant Rates in the HCS and TxHmL Programs Effective Sept. 1, 2023
IL 2023-31 Fiscal Year 2023 Cutoff Date for Year-End Closeout Processing LTC TMHP Claims
IL 2023-25 Critical Incident Management Reporting System (CIMS) Provider Interface Project Status
IL 2023-23 Attendant Compensation Rate Enhancement Program Information for Individualized Skills and Socialization Services in the HCS and TxHmL Waiver Program
IL 2023-22 Employment First Uniform Assessment Tool
IL 2023-21 Preparing for the Upcoming Fiscal Year 2023 Fee-for-Service Claims Billing Closeout