1. HIPPA laws Merck.com

2. Health care practitioners have a duty to keep personal medical information confidential. Communication between the patient and doctor is strictly confidential. Even well-meaning family members are not necessarily allowed to have information about a person's medical condition

3. All people are entitled to confidentiality unless they give permission for disclosure or they clearly can no longer express a preference (for example, if they are severely confused or comatose).

4. A federal law called the Health Insurance Portability and Accountability Act, or HIPAA, applies to most health care practitioners and sets detailed rules regarding privacy, access, and disclosure of information. For example, HIPAA specifies the following:

5. People should normally be able to see and obtain copies of their medical records and request corrections if they find mistakes. Health care practitioners should routinely disclose their practices regarding privacy of personal medical information.

6. Health care practitioners may share the person's medical information, but only among themselves and only as much as is necessary to provide medical care. Personal medical information may not be disclosed for marketing purposes.

7. Health care practitioners should take reasonable precautions to ensure that their communications with the person are confidential. People may file complaints about privacy practices of health care practitioners.

8. At the same time, HIPAA rules should not be read to create barriers to normal communications with a patient's family or friends. The rules permit doctors or other health care practitioners to share information that is directly relevant to the involvement of a spouse, family members, friends, or other people identified by a patient

9. If the patient has the capacity to make health care decisions, the doctor may discuss this information with the family or others present if the patient agrees or, when given the opportunity, does not object

10. Even when the patient is not present or it is not practical to ask the patient's permission because of emergency or incapacity, a doctor may share this information with family members or friends when, in exercising professional judgment, the doctor determines that doing so would be in the best interest of the patient.

11. Health care practitioners are sometimes required by law to disclose certain information, usually because the condition may present a danger to others. For example, certain infectious diseases, such as human immunodeficiency virus (HIV) infection, syphilis, and tuberculosis, must be reported to state or local public health agencies.

12. Conditions that might seriously impair a person's ability to drive, such as dementia or recent seizures, must be reported to the Department of Motor Vehicles in some states.