Hospital charge data is available to consumers in a number of different ways. State law governs the disclosure of hospital charge data in a variety of ways. For example, states may require disclosure of the most common diagnoses, disclosure of charge information upon a patient’s request, or disclosure or posting of the hospital’s “charge master." The most common requirement is for certain health care providers, including hospitals and physicians, to disclose charge information to patients upon request. The map below shows the states that have such requirements and exactly how consumers may access to the charge information.