(a) If an adult patient of a home and community support services agency or in a hospital or nursing home, or an adult inmate of a county or municipal jail, is comatose, incapacitated, or otherwise mentally or physically incapable of communication and does not have a legal guardian or an agent under a medical power of attorney who is reasonably available after a reasonably diligent inquiry, an adult surrogate from the following list, in order of priority, who has decision-making capacity, is reasonably available after a reasonably diligent inquiry, and is willing to consent to medical treatment on behalf of the patient may consent to medical treatment on behalf of the patient:
(1) the patient’s spouse;
(2) the patient’s adult children;
(3) the patient’s parents; or
(4) the patient’s nearest living relative.

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Terms Used In Texas Health and Safety Code 313.004

  • Guardian: A person legally empowered and charged with the duty of taking care of and managing the property of another person who because of age, intellect, or health, is incapable of managing his (her) own affairs.
  • Jurisdiction: (1) The legal authority of a court to hear and decide a case. Concurrent jurisdiction exists when two courts have simultaneous responsibility for the same case. (2) The geographic area over which the court has authority to decide cases.
  • Person: includes corporation, organization, government or governmental subdivision or agency, business trust, estate, trust, partnership, association, and any other legal entity. See Texas Government Code 311.005
  • Power of attorney: A written instrument which authorizes one person to act as another's agent or attorney. The power of attorney may be for a definite, specific act, or it may be general in nature. The terms of the written power of attorney may specify when it will expire. If not, the power of attorney usually expires when the person granting it dies. Source: OCC
  • Trial: A hearing that takes place when the defendant pleads "not guilty" and witnesses are required to come to court to give evidence.

(a-1) If the patient does not have a legal guardian, an agent under a medical power of attorney, or a person listed in Subsection (a) who is reasonably available after a reasonably diligent inquiry, another physician who is not involved in the medical treatment of the patient may concur with the treatment.
(b) Any dispute as to the right of a party to act as a surrogate decision-maker may be resolved only by a court of record having jurisdiction of proceedings under Title 3, Estates Code.
(c) Any medical treatment consented to under Subsection (a) or concurred with under Subsection (a-1) must be based on knowledge of what the patient would desire, if known.
(d) Notwithstanding any other provision of this chapter, a surrogate decision-maker may not consent to:
(1) voluntary inpatient mental health services;
(2) electro-convulsive treatment; or
(3) the appointment of another surrogate decision-maker.
(e) Notwithstanding any other provision of this chapter, if the patient is an adult inmate of a county or municipal jail, a surrogate decision-maker may not also consent to:
(1) psychotropic medication;
(2) involuntary inpatient mental health services; or
(3) psychiatric services calculated to restore competency to stand trial.
(f) A person who is an available adult surrogate, as described by Subsection (a), may consent to medical treatment on behalf of a patient who is an adult inmate of a county or municipal jail only for a period that expires on the earlier of the 120th day after the date the person agrees to act as an adult surrogate for the patient or the date the inmate is released from jail. At the conclusion of the period, a successor surrogate may not be appointed and only the patient or the patient’s appointed guardian of the person, if the patient is a ward under Title 3, Estates Code, may consent to medical treatment.