Your Child’s Application for Developmental Disabilities (DDA)

A Step -by-Step guide to submitting and application for DDA on behalf of your child.

The Washington State Developmental Disabilities Administration (DDA) provides services for individuals with developmental and intellectual disabilities. DDA is responsible for administering various Medicaid waivers that provide essential services to families who have members who have a developmental disability. Applying for DDA services can be an extremely long process, however, this process is necessary for families to receive services such as physical therapy, behavioral health, respite, and residential services.

Before you begin the process of applying for DDA services, it’s important to understand the eligibility criteria and gather the necessary information. Here’s a step-by-step checklist to help you get started:

  • Verify Eligibility: Review the Eligible Conditions With Age and Type of Evidence to confirm that your child’s condition qualifies for DDA support.
  • Complete Required Forms: Fill out the Request for DDA Eligibility Determination form. This form is crucial for starting the DDA process.
  • Consent Form: Fill out the Consent Form to authorize the release of necessary information for your application.
  • Acknowledge Privacy Practices: Agree to the DSHS Notice of Privacy Practices for Client Medical Information to ensure that your child’s medical information is handled in compliance with privacy regulations.
  • Submission: Submit all the completed forms and required information to your local DDA office.

*DDA services are available for children with developmental delays until their 10th birthday. Children aged four and older with a condition related to intellectual disabilities are also eligible for DDA services. Washington State Department of Social and Health Services maintains a list of
supported conditions, age ranges, and acceptable tests for diagnosis.

*For more information on filing the right paperwork, view PAVE’s DDA Access Eligibility video. Informing Families also has a video about Applying for DDA.

If you have additional questions, contact your local DDA office by calling:

  • 1-800-462-0624 for: Adams, Asotin, Benton, Chelan, Columbia, Douglas, Ferry, Franklin, Garfield, Grant, Kittitas, Klickitat, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens, Walla Walla, Whitman, and Yakima Counties
  • 1-800-788-2053 for: Island, King, San Juan, Skagit, Snohomish, and Whatcom Counties
  • 1-800-248-0949 for: Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Kitsap, Lewis, Mason, Pacific, Pierce, Skamania, Thurston, and Wahkiakum Counties