A. It is an act of unprofessional conduct for a health professional to request a laboratory that provides anatomic pathology services at the health professional's orders to submit a bill for anatomic pathology services, whether occurring in this state or elsewhere, to any person or entity other than the following:

1. 1. The patient.
2. 2. The responsible insurer or other third party payor.
3. 3. The health care institution.
4. 4. A referring laboratory, excluding the laboratory of the health professional who ordered the test.
5. 5. A governmental agency or the agency's public or private agent, agency or organization that is acting on behalf of the recipient of the services.