Utah Default Surrogate Decision Maker: Who Decides Without an Advance Directive

A 58-year-old Utah man has a massive stroke. He never signed an advance directive. His wife wants comfort care only. His adult son demands every possible intervention. The attending physician cannot legally proceed until this conflict is resolved — and there is no document to guide anyone.

Utah law does provide a fallback system. Under the Uniform Health Care Decisions Act (Utah Code Title 75A, Chapter 9), when an incapacitated patient has no advance directive and no court-appointed guardian, a default surrogate hierarchy determines who makes medical decisions.

The Surrogate Priority Order

Utah's statutory surrogate list follows this priority:

1. Court-appointed guardian with healthcare authority (if one exists)
2. Spouse or domestic partner
3. Adult children
4. Parents
5. Adult siblings
6. Any adult who has exhibited special care and concern for the patient, is familiar with their values, and is reasonably available

The physician must accept the decision of the highest-priority available surrogate. A parent cannot override a spouse. An adult child cannot override a surviving parent unless they hold a higher position on the list.

What Happens When Surrogates Disagree

The real problem is not the hierarchy itself — it is what happens when two or more people at the same priority level disagree. If three adult children cannot agree on a treatment plan, the statute requires the attending physician to attempt mediation.

If mediation fails, the only option is a court-supervised guardianship proceeding. This means:

• Filing a formal petition in Utah District Court
• A judge hearing arguments from competing family members
• Legal fees that commonly exceed several thousand dollars
• A timeline measured in weeks or months — while the patient remains in limbo

During the court process, physicians default to providing standard medical treatment. Aggressive interventions continue unless a judge orders otherwise.

Why the Surrogate System Falls Short

The surrogate hierarchy was designed for clear-cut situations: a married patient with one spouse who can make decisions. It breaks down quickly in common real-world scenarios:

Blended families. A second spouse and adult children from a first marriage may have fundamentally different views on treatment. The spouse holds priority, but children often contest that authority.

Estranged relationships. An adult child who has not spoken to a parent in years still holds higher priority than a devoted friend or caregiver who has been managing daily care.

Unmarried partners. A long-term partner who shares a home and handles finances has no automatic standing unless they qualify under the "special care and concern" category — the lowest priority tier.

Multiple children with different values. Three adult children hold equal priority. Two agree on withdrawing life support, one refuses. The statute does not specify majority rules.

How an Advance Directive Solves This

Naming a single healthcare agent in an advance directive eliminates the surrogate hierarchy entirely. Your chosen agent has exclusive authority to make medical decisions, regardless of what other family members want.

You can also include specific treatment instructions — your living will preferences — so your agent has documented guidance rather than guessing what you would have wanted.

An advance directive does not require an attorney, costs nothing to execute under Utah law (one witness, no notary), and can be completed electronically with remote video witnessing under HB 181.

The alternative — a guardianship battle in District Court — costs thousands of dollars and adds weeks of delay during a medical crisis.

The Utah Advance Directive & Living Will Kit walks you through naming a healthcare agent, setting treatment preferences, and distributing the document to your medical providers so the surrogate hierarchy never applies.

See more Utah guides →