The CCD consists of a mandatory textual part, which ensures human interpretation of the document contents, and optional structured parts for software processing. The structured part is based on the HL7 Reference Information Model (RIM) and provides a framework for referring to concepts from coding systems such as from SNOMED and LOINC.
The CCD patient summary contains a core data set of the most relevant administrative, demographic, and clinical information facts about a patient's healthcare, covering one or more healthcare encounters. It provides a means for one healthcare practitioner, system or setting to aggregate all pertinent data about a patient and forward it to another practitioner, system or setting to support the continuity of care. Its primary use case is to provide a snapshot in time containing the pertinent clinical, demographic, and administrative data for a specific patient.
The CCR standard is a patient health summary standard. It is a way to create flexible documents that contain the most relevant and timely core health information about a patient, and to send these electronically from one caregiver to another. It contains various sections such as patient demographics, insurance information, diagnoses and problem list, medications, allergies and care plan. These represent a "snapshot" of a patient's health data that can be useful or possibly lifesaving, if available at the time of clinical encounter. The CCR standard is designed to permit easy creation by a physician using an electronic health record (EHR) system at the end of an encounter.
And lastly for clarification, the Continuity of Care Document (CCD) is an HL7 implementation of the Continuity of Care Record (CCR) and not a competing standard.
Alistair Jackson, M.Ed.