1. Nothing contained in sections 404.800 to 404.865 shall revoke, amend or limit the operation of chapter 565.
2. If the patient's death results from withholding or withdrawing life-sustaining treatment in accordance with the terms of the durable power of attorney for health care act, the death shall not constitute a suicide or homicide for any purpose under any statute or other rule of law and shall not impair or invalidate any insurance, annuity or other type of contract that is conditioned on the life or death of the patient, any term of the contract to the contrary notwithstanding.