HB 1139 Colorado House · 2026 Regular Session

Use of Artificial Intelligence in Health Care

Summary
On and after January 1, 2027, when determining coverage for health-care services, the act requires entities that use an artificial intelligence system (AI system) for the purpose of conducting utilization review of health-care services, including health insurance companies (carriers), pharmacy benefit managers, private utilization review organizations, behavioral health administrative services organizations, and managed care entities (entities), ensure that the AI system complies with certain requirements specified in the act. Specifically, an entity shall ensure that the AI system:Makes determinations based on medical or clinical history, the patient's individual clinical circumstances, and other relevant clinical factors specified in the act, with denial of coverage reviewed by a licensed clinician or physician or other competent regulated professional who is competent to evaluate the specific clinical issues and review the health benefit plan's terms of coverage (competent regulated professional);Does not base its determination solely on group data without reference to the individual's data;Is not used in any way that discriminates against individuals in violation of other state or federal laws and is fairly and equitably applied, including in accordance with regulations and guidance issued by the federal department of health and human services; andIs periodically reviewed to ensure the AI systems outcomes are accurate and reliable and that an individual's health data is not used beyond its intended or stated purpose.     Entities that use AI systems shall disclose to the division of insurance, the department of human services, or the department of health care policy and financing, as applicable, the utilization review functions for which the AI system will be used and the points in the utilization review process when it will be used, the process for human oversight of adverse coverage determinations, and the process for maintaining audit information to ensure that the use of the AI system complies with the requirements in the act.     The AI system may be used to assist in utilization review, including expedited approvals. A carrier's denial of coverage for a service based in whole or in part on medical necessity shall not be issued solely on the output of an AI system without human review by a licensed clinician or physician or other competent regulated professional.     Further, the act prohibits a carrier and a payer of services under the 'Colorado Medical Assistance Act' and the 'Children's Basic Health Plan Act' from paying for psychotherapy services that are provided directly to a client and that are conducted by an AI system.(Note: This summary applies to this bill as enacted.)
Bill status signed all 5 stages cleared
Introduction
Feb 2026
Committee Review
May 2026
House Passage
May 2026
Senate Passage
May 2026
Signed into Law
Jun 2026
Introduced Feb 4, 2026 Signed Jun 2, 2026
Maddy AI version diff · 5 comparisons

What changed between versions

Rerevised Final Act · 5 edits · May 27, 2026
MODERATE
The bill was reorganized from a 'Rerevised' draft to a 'Final Act' version, changing the header to indicate it is ready for the Governor's signature. The core policy content regarding the regulation of AI in healthcare was retained but significantly expanded and clarified. The final version adds specific prohibitions on AI making adverse coverage determinations without human review, mandates that AI decisions must be based on individual patient data rather than just group averages, and requires strict transparency regarding how AI systems are used in utilization review.
Scope change
The scope of applicability was expanded and clarified to explicitly include carriers, pharmacy benefit managers, private utilization review organizations, and behavioral health administrative services organizations. The bill now clearly defines which entities must comply and outlines specific scenarios where AI can be used as an assistive tool versus where it is prohibited from making final decisions.
REQUIREMENT

Added a new section prohibiting AI systems from making adverse coverage determinations (like denials of care) without meaningful review by a qualified human clinician or physician.

Mandated that AI systems used for utilization review must base determinations on individual medical history and clinical circumstances, explicitly forbidding reliance solely on group data.

Required entities to provide written disclosures to state agencies detailing how AI is used, the points in the process where it is applied, and the specific human oversight procedures in place.

Established new requirements for AI systems to produce and retain documentation, audit logs, and model-governance records to demonstrate compliance and ensure accuracy.

DEFINITION

Added precise definitions for key terms such as 'behavioral health administrative services organization' and 'private utilization review organization' to clarify which entities must comply with the new rules.

Floor votes

How they voted

This bill passed the Senate by voice vote (no roll call recorded).
Full legislative history

Actions timeline

Total actions
13
Key actions
7
Committee
2
Jun 2, 2026
Signed into law
Governor Signed
executive
May 28, 2026
Upper · Passed
Signed by the President of the Senate
upper
May 28, 2026
Lower · Passed
Signed by the Speaker of the House
lower
May 11, 2026
Upper · Passed
Senate Third Reading Passed - No Amendments
upper
May 5, 2026
Upper · Passed
Senate Committee on Business, Labor, & Technology Refer Unamended to Senate Committee of the Whole
upper
May 4, 2026
Introduced
Introduced In Senate - Assigned to Business, Labor, & Technology
upper
Mar 16, 2026
Lower · Passed
House Third Reading Passed - No Amendments
lower
Mar 4, 2026
Lower · Passed
House Committee on Health & Human Services Refer Amended to House Committee of the Whole
lower
Feb 4, 2026
Introduced
Introduced In House - Assigned to Health & Human Services
lower
4 primary · 14 co-sponsors

Sponsors