Disability Integration and Coordination Improvement Act - Amends the Homeland Security Act of 2002 to direct the Administrator of the Federal Emergency Management Agency (FEMA) to: (1) establish an Office of Disability Integration and Coordination; (2) use such Office to implement strategies and activities in support of the responsibilities of the Disability Coordinator, who shall serve as the head of the Office; and (3) establish specific, measurable, achievable, and relevant performance measures for the Office, including to ensure the integration of people with disabilities into emergency, preparedness, protection, mitigation, evacuation, sheltering, transition, resiliency, and recovery plans.