Idaho Living Will Requirements
Since a 2023 overhaul of Idaho law, Idaho's statute does not use the phrase "living will" anywhere in its operative text: what other states call a living will is, in Idaho, simply one optional part of a single Advance Care Planning Document (ACPD), created under Idaho Code Sections 39-4501 through 39-4515.
Introduction
Since a 2023 overhaul of Idaho law, Idaho's statute does not use the phrase "living will" anywhere in its operative text: what other states call a living will is, in Idaho, simply one optional part of a single Advance Care Planning Document (ACPD), created under Idaho Code Sections 39-4501 through 39-4515. That optional part still does what a living will does everywhere else: it lets you write down, in your own words, the medical treatment you want or do not want if you become seriously ill or injured and cannot speak for yourself. The very same ACPD can also name a health care agent, entirely at your option, with no statutory line dividing the two functions the way some states draw one. This guide covers the treatment-wishes side of the ACPD: what you can say, what Idaho actually requires you to sign it, and what changed recently in Idaho law that most people do not expect. If you also want to name someone to decide for you, that is the same document, covered in more depth on the Idaho Healthcare Power of Attorney page.
Key Things to Know
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In Idaho, a living will is not its own separate document. It is the treatment-wishes portion of your Advance Care Planning Document (ACPD): your written statement of which medical treatments you want or want withheld if you cannot speak for yourself. It does not name who decides for you; that is a separate, optional part of the same ACPD.
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A living will is not a last will and testament. A living will governs medical care while you are alive but unable to communicate; a last will and testament governs who inherits your property after you die. Most people preparing one eventually want the other too.
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Idaho does not have a stand-alone living-will form. Idaho Code Sections 39-4501 through 39-4515 use one Advance Care Planning Document (ACPD) for both the treatment-wishes function and the health-care-agent-nomination function, and since a 2023 law change the statute does not use the phrase living will at all.
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Idaho's advance directive used to state that it had no force during pregnancy. A federal court struck that requirement down in 2021. You now choose your own pregnancy instructions instead of having a default imposed on you.
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Idaho does not require you to phrase your wishes using a fixed list of trigger conditions like a terminal condition or permanent unconsciousness. You write your own end-of-life care instructions and treatment objectives in plain language.
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Registering your ACPD with the Idaho Department of Health and Welfare's Health Care Directive Registry is optional. It is not required for your document to be valid.
Key decisions before you file
Before you file a Living Will in Idaho, a few decisions shape the document: which option to choose and what each one means. The Living Will guide walks through them.
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Idaho Requirements for Living Will
Idaho does not have a legally separate living will statute. Idaho Code Sections 39-4501 through 39-4515 (the Medical Consent and Natural Death Act) create a single Advance Care Planning Document (ACPD) that can carry treatment wishes, a health care agent nomination, or both. Since a 2023 law change (House Bill 223), the statute no longer uses the term living will at all; it replaced the prior combined instrument, which had been named Living Will and Durable Power of Attorney for Health Care.
Idaho Code Section 39-4503 defines competence by comprehension: a person is competent if they understand the need for, nature of, and significant risks of the health care decision at hand, regardless of age. The 18-and-older requirement to execute an ACPD comes from Section 39-4510(1), not Section 39-4503.
Idaho Code Section 39-4502 does define persistent vegetative state as a condition of partial arousal, unresponsiveness, and no higher brain function. However, current law does not require an ACPD to address this condition as a mandatory trigger; it is simply an available term a person may choose to use inside their own free-text end-of-life care instructions under Section 39-4510(2)(h).
Artificial nutrition and hydration (ANH) is defined at Idaho Code Section 39-4502, Idaho's ACPD has no separate, specifically-initialed ANH election; a person addresses it, if at all, within their general end-of-life care instructions or treatment objectives. Section 39-4514(3) confirms a competent patient's ACPD-based direction to withhold or deny ANH must be honored by health care providers.
Comfort care is defined at Idaho Code Section 39-4502 and required at Section 39-4514(4): anyone caring for a person for whom artificial life-sustaining treatment or artificial nutrition and hydration is withheld or withdrawn must still provide comfort care.
The current revocation section is Idaho Code Section 39-4511A. An ACPD may be revoked at any time by destruction, written signed revocation, oral expression, or any other action clearly manifesting intent to revoke. Idaho separately allows a person to SUSPEND, rather than fully revoke, an ACPD under Section 39-4511B, with the original terms resuming once a stated end condition is met, a distinct option most states do not offer.
Idaho Code Section 39-4513(2) lets a licensed independent practitioner or other health care provider who objects to a patient's wishes for ethical or professional reasons withdraw from the case without civil or criminal liability, provided they first make a good faith effort to help the patient find another willing provider. This is narrower than a general physician-compliance and transfer-of-care process; it is specifically a conscience-objection and transfer-assistance duty.
Idaho's Revised Uniform Anatomical Gift Act, beginning at Idaho Code Section 39-3401, lets a person authorize organ and tissue donation separately from their Advance Care Planning Document.
Federal HIPAA regulations at 45 CFR Section 164.508 govern how a named health care agent can be authorized to access a person's protected health information once that part of the Advance Care Planning Document is in effect. Idaho's own ACPD statute lists a HIPAA release authorization among its optional elements.
Federal law requires Medicare- and Medicaid-participating hospitals, nursing homes, and other facilities to inform patients in writing of their right under Idaho law to make an advance care planning document, including stating their own treatment wishes.
A Physician Orders for Scope of Treatment (POST) form under Idaho Code Section 39-4512A is signed jointly by a licensed independent practitioner and the patient or their surrogate decision-maker, and by law cannot contradict the patient's last known expressed wishes. It is a separate, clinician-countersigned medical order, not part of the ACPD itself, and is typically used alongside one for patients with serious illness.
Idaho Code Section 39-4513 protects licensed independent practitioners, other health care providers, and health care agents from civil or criminal liability, and from discipline for unprofessional conduct, for good-faith acts or omissions carried out under a facially valid Advance Care Planning Document, DNR order, or POST form.
Idaho's Health Care Directive Registry is now run by the Department of Health and Welfare, having been transferred from the Secretary of State. Registering is optional and does not affect an Advance Care Planning Document's validity either way. The statute allows a filing fee of up to ten dollars, though the department's current public guidance describes registering as free; revoking a registered document never carries a fee.
Since a 2023 law change, Idaho requires only your name, date of birth, phone number, mailing address, signature, and the date signed for a valid Advance Care Planning Document. Witnesses and notarization are both listed only as optional elements you may add for extra formality; neither is required, and the statute sets no eligibility rules for who may serve as an optional witness.
Idaho's advance directive form previously stated it had no force during pregnancy by default. A federal court ruled that requirement unconstitutional in April 2021 (Almerico et al. v. State of Idaho et al.), and the State issued an official notice replacing it with an opt-in choice: honor the directive fully during pregnancy, specify a particular treatment decision for pregnancy, or let a health care agent decide during pregnancy instead. No default rule applies unless the person completing the ACPD picks one of these options themselves.
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In Idaho, a living will is the treatment-wishes portion of the Advance Care Planning Document (ACPD), the single instrument Idaho Code Sections 39-4501 through 39-4515 use for advance health care planning. It lets you write, in your own words, whether you want life-sustaining treatment continued or withheld and how you want things like artificial nutrition and hydration handled. Idaho's statute has not used the term living will since a 2023 law change replaced the old combined form with the ACPD; the phrase survives only as the informal name Idaho's own health department still uses for this part of the document.
A living will is you deciding your own treatment wishes directly. A health care power of attorney is you naming someone else to decide for you instead. In Idaho both live in the same Advance Care Planning Document, but the conceptual difference is the same as anywhere else: see Idaho Healthcare Power of Attorney for the agent-naming side.
These control completely different things at completely different times. A living will, the treatment-wishes part of your Idaho Advance Care Planning Document, states your medical care wishes while you are alive but unable to communicate. A last will and testament says who inherits your property after you die, and only takes effect at death. Having one does not replace the other. Most people planning end-of-life care in Idaho also want a separate Idaho Last Will and Testament for their estate.
Only if you want it to. Idaho's older form used to say a directive had no force during pregnancy, but a federal court ruled that requirement unconstitutional in 2021, and Idaho's current template instead offers you a choice: honor your directive fully during pregnancy, specify exactly what treatment should or should not be given, or let your health care agent decide during pregnancy instead. There is no default pregnancy rule imposed on you unless you choose one.
No. The Idaho Department of Health and Welfare runs a voluntary Health Care Directive Registry under Idaho Code Section 39-4515, but the statute says outright that failing to register does not affect your document's validity. The registry moved from the Secretary of State to the Department of Health and Welfare, and while the law allows a filing fee of up to ten dollars, the department's current guidance describes registering as free.
No, they are different documents. Your Advance Care Planning Document is something you complete yourself, alone or with help, under Idaho Code Section 39-4510. A Physician Orders for Scope of Treatment (POST) form under Section 39-4512A is a medical order that a licensed independent practitioner signs together with you or your surrogate decision-maker, typically used alongside your ACPD for patients with serious illness to turn wishes into actionable orders in a clinical setting.