What informed consent means
Informed consent is the idea that you decide what is done to your body, and that a decision is only meaningful if you have the information needed to make it. In Canterbury v. Spence, 464 F.2d 772 (D.C. Cir. 1972), a leading federal appeals court decision, the court described the test for whether a risk must be disclosed as its materiality to the patient's decision. It is one influential decision, not a rule that binds every state. Each state sets its own standard through its statutes and court decisions, and some measure disclosure against what a reasonable provider would say rather than what a patient would want to know.
What federal hospital rules say
Hospitals that take part in Medicare must meet federal conditions of participation. Two are relevant here:
- • 42 CFR 482.13(b)(2): the patient or the patient's representative (as allowed under state law) has the right to make informed decisions about care, including being informed of their health status and being able to request or refuse treatment.
- • 42 CFR 482.51(b)(2): a properly executed informed consent form for the operation must be in the patient's chart before surgery, except in emergencies.
These are conditions a hospital must meet to participate in Medicare. They are not a private right to sue, and a violation does not by itself prove a malpractice claim. They do show what a hospital is expected to have on record, which is why the consent form and chart are among the first things reviewed in these cases.
What a claim usually has to show
Details depend on the state, but cases of this kind generally turn on questions like these:
- • Duty to disclose: what information a provider was required to give about the procedure, its significant risks and reasonable alternatives.
- • Whether it was given: the chart, the consent form and the accounts of the people present.
- • Causation: the undisclosed risk is the one that happened, and proper disclosure would have changed the decision. Canterbury describes an objective approach, asking what a prudent person in the patient's position would have decided if suitably informed.
- • Harm: a real injury resulting from the treatment.
Exceptions courts recognise
Canterbury recognises that disclosure is not required in a genuine emergency, where the patient cannot consent and harm from delay is imminent, and the federal surgical rule above also excepts emergencies. Whether a situation qualifies is decided on its facts under state law.
Practical steps if you are concerned
- • Request a copy of your complete medical records, including any consent forms.
- • Write down what you were told before the procedure, who told you, and when, while memory is fresh.
- • Check the filing deadline for your state in our statute of limitations guide.
- • Have a medical malpractice lawyer licensed in your state review the records. This page cannot say whether your situation qualifies.
Related reading
- • Signs of medical malpractice
- • Surgical error claims
- • Can I sue my doctor?
- • What is medical malpractice?
Sources
- • eCFR, 42 CFR 482.13(b)(2), Condition of participation: Patient's rights (checked October 16, 2026).
- • eCFR, 42 CFR 482.51(b)(2), Condition of participation: Surgical services (checked October 16, 2026).
- • Canterbury v. Spence, 464 F.2d 772 (D.C. Cir. 1972), decided May 19, 1972; federal appeals court opinion applying District of Columbia law.
This page is general information about United States law as of October 2026. It is not legal advice, does not assess any individual case, and does not promise any outcome. Laws and deadlines vary by state; consult a licensed attorney in your state.