Final answer:
The core data set developed by ASTM to communicate a patient's past and current health information as the patient transitions from one care setting to another is known as a Continuity of Care Record (CCR).
Step-by-step explanation:
The core data set developed by ASTM to communicate a patient's past and current health information as the patient transitions from one care setting to another is known as a Continuity of Care Record (CCR). The CCR includes information such as medical history, medications, allergies, and recent test results.