In most states, a spouse can make medical decisions for an incapacitated partner without a power of attorney, because default surrogate laws place spouses at the top of the list of people authorized to step in. That authority is real, but it is narrower than what a healthcare POA provides, it does not exist in every state, and it can be limited by the type of decision, hospital policy, or objections from other family members.
Where Spouses Stand Under Default Surrogate Laws
Forty-six states have default surrogate statutes that take effect when a patient cannot make their own healthcare decisions and has no advance directive. These laws set a ranked list of substitute decision-makers, and spouses almost always sit first. The typical order runs from spouse or domestic partner, to adult children, to parents, to siblings, and then to other relatives or close friends.
How that authority works varies by state. Some states require the surrogate to follow what the patient would have wanted where those wishes are known. Others give the surrogate broader discretion to act in the patient’s best interest. Four states have no default surrogate statute at all, which means a spouse in those states has no automatic legal standing to consent to treatment for an incapacitated partner and will need either a POA or a court order.
Federal law adds one piece of scaffolding. The Patient Self-Determination Act requires hospitals, nursing facilities, home health agencies, and hospice programs to give every adult patient written information about their right to make medical decisions and to create advance directives at admission or enrollment.1Office of the Law Revision Counsel. 42 USC 1395cc – Agreements With Providers of Services That helps before a crisis, not during one.
When Surrogate Authority Actually Kicks In
A spouse’s default authority does not activate the moment a partner gets sick. Before anyone else can make medical decisions on your behalf, a physician has to determine that you lack the capacity to make your own. This is a clinical judgment made at the bedside, and it can shift over the course of a hospitalization as medication wears off, delirium clears, or a condition worsens.
A patient who still has capacity retains the right to make their own choices, including choices a spouse considers unwise. Doctors generally will not override a capable patient because a spouse disagrees. The surrogate role begins only when the capacity determination has been made and documented.
What a Spouse Can and Cannot Decide
Under most default surrogate laws, a spouse can consent to or refuse routine treatment, approve diagnostic tests, and agree to surgical procedures. That covers the decisions that come up in a typical hospitalization. The limits show up in high-stakes, irreversible situations.
Many states restrict default surrogates from making certain decisions that a formally designated agent under a healthcare POA could make. Common restrictions include:
- Withdrawing life-sustaining treatment. Some states require clear evidence of the patient’s wishes before a default surrogate can authorize removing a ventilator or stopping dialysis.
- Refusing artificial nutrition and hydration. Several states treat feeding tubes as a separate category requiring higher authorization.
- Authorizing experimental treatment or enrollment in a clinical trial.
- Psychiatric commitment or psychotropic medication. Mental health decisions often fall outside default surrogate authority.
Hospital policies can tighten the practical scope further. Some facilities require a formal power of attorney or court order before proceeding with certain procedures regardless of what state law technically permits. Providers tend to be cautious about liability, and that caution can translate into delays a spouse without documentation has limited ability to overcome.
Emergencies Are Handled Differently
In genuine emergencies, the question of who has authority largely falls away. The doctrine of implied consent allows physicians to provide life-saving treatment without anyone’s permission when the patient cannot consent and delay would cause death or serious harm. You will not be asked to sign paperwork while your partner is being wheeled into emergency surgery.
Implied consent only covers the immediate crisis, though. Once the patient is stabilized, every subsequent decision reverts to the normal surrogate framework. A spouse who had no trouble during the emergency phase may hit friction over decisions about rehabilitation, long-term care, or discharge planning.
Getting Access to Your Spouse’s Medical Records
Marriage does not automatically unlock a partner’s medical records. Under the HIPAA Privacy Rule, a covered entity must treat a patient’s “personal representative” the same as the patient for purposes of accessing protected health information, and a personal representative is defined as someone with legal authority to make healthcare decisions for that person, such as a POA holder or court-appointed guardian.2U.S. Department of Health & Human Services (HHS). Personal Representatives
A spouse who qualifies as a default surrogate under state law generally meets that threshold, because state law is the source of their decision-making authority. But that connection is not always obvious to hospital staff, and proving default surrogate status is harder than handing over a signed POA. Spouses sometimes get locked out of their partner’s information while administrators sort out whether state law actually applies.
Even without personal representative status, HIPAA allows providers to share information directly relevant to a family member’s involvement in the patient’s care or payment for that care. Providers can also share a patient’s location, general condition, or the fact of death with responsible family members.3HHS.gov. Disclosures to Family and Friends That is meaningful, but it falls well short of full access to test results, treatment history, and medication lists.
When Other Family Members Disagree
The most common scenario that tests a spouse’s surrogate authority is a dispute with stepchildren or adult children from a prior relationship. Default surrogate laws put the spouse first, but that does not prevent conflict. An adult child who believes their parent would not want a particular treatment, or who suspects the spouse is not acting in the parent’s best interest, can create serious complications even without formal legal standing.
Providers generally follow the priority order set by state law, and physicians tend to defer to a surrogate who understands the medical situation and appears to be acting in the patient’s interest. When the conflict becomes loud enough, though, providers get nervous. Hospitals are not equipped to adjudicate family disputes, and the risk of liability from proceeding over an objection can make doctors reluctant to act on anyone’s consent.
Most hospitals have an ethics committee or ethics consultant for exactly this situation. An ethics consultation is advisory, not binding. The consultant typically meets with the medical team, the family, and sometimes other stakeholders to identify options and recommend a course of action, often by refocusing the discussion on the patient’s known values. If that does not resolve the dispute, the next step is usually court intervention.
Emergency Guardianship When Surrogate Authority Is Not Enough
When default authority is insufficient or contested, the legal alternative is guardianship. A court-appointed guardian receives formal authority to make healthcare decisions, which eliminates ambiguity about who is in charge. The process is slow, expensive, and invasive.
Emergency or temporary guardianship moves faster than a standard petition. Courts can schedule a hearing within days when there is an urgent medical need. The petitioner has to show, with medical evidence, that the patient is incapacitated and that the requested authority cannot wait for a full proceeding. Temporary orders typically last 60 to 90 days, with the possibility of extension.
Costs add up. Court filing fees vary by jurisdiction but generally run in the hundreds. Attorney’s fees to prepare the petition, gather medical evidence, and appear in court are the largest expense, commonly running from several thousand dollars into the mid-four figures or higher. The court may also require an independent capacity evaluation. Guardianship proceedings also become part of the public record, and the patient loses the right to make their own decisions in the areas the order covers. It works as a backstop, not as a substitute for advance planning.
Financial Liability for Consenting to Treatment
Consenting to a spouse’s medical treatment can carry financial consequences many people do not anticipate. Under the doctrine of necessaries, a common law principle still recognized in the majority of states, one spouse can be held liable for the other’s necessary expenses. Medical care is the most common category, though the doctrine can extend to shelter and food.
The practical effect is that a hospital can pursue either spouse for the patient’s medical bills regardless of who signed the consent forms. The doctrine applies automatically by virtue of the marriage. A handful of states have abolished it, and a few others limit its scope. The main exception in states that recognize it involves separation: if the spouses were living apart when the services were provided, and the provider was aware of that, the non-patient spouse may not be liable.
This exposure exists whether or not the spouse had decision-making authority. A spouse who consented under a default surrogate statute and a spouse who had no involvement in the decision at all can face the same liability. The consent question and the financial responsibility question are legally separate.
Same-Sex Spouses
Since the Supreme Court’s 2015 decision in Obergefell v. Hodges, same-sex married couples hold the same rights as opposite-sex married couples in every state, including medical decision-making authority. The Court explicitly identified hospital access and medical decision-making among the benefits of marriage that same-sex couples had been unconstitutionally denied.4Justia. Obergefell v Hodges, 576 US 644 (2015) A same-sex spouse sits in the same position in the default surrogate hierarchy, holds the same HIPAA rights, faces the same liability under the doctrine of necessaries, and has the same standing to petition for guardianship.
Why a Healthcare Power of Attorney Still Matters
Everything above describes the messy reality of what happens without advance planning. A healthcare power of attorney eliminates most of these problems in a single document. It names a specific agent, defines the scope of their authority, takes effect when a physician determines you lack capacity, and gives that person legal standing no hospital administrator or family member can easily challenge.
Creating one is straightforward. You choose an agent, who can be your spouse but does not have to be. You sign in the presence of witnesses, typically two adults who are not named as your agent and not your healthcare providers. Most states do not require notarization for a healthcare POA, though a few do. Keep the document accessible and give copies to your agent, your primary care physician, and any hospital where you receive regular care.
A healthcare POA also solves the HIPAA problem. Under the Privacy Rule, a person holding a healthcare power of attorney is your personal representative and has the same right to access your medical records that you do.2U.S. Department of Health & Human Services (HHS). Personal Representatives No ambiguity, no proving default surrogate status, no waiting for a legal department to weigh in. The time to sign one is while it feels unnecessary.