introduction to hl7 standards

By standardizing these events, HL7 ensures that systems communicate promptly in response to significant healthcare activities. The message type determines the expected segment types in the message. But before HL7 standards came into the picture, facilitating communication between different healthcare systems was quite an ordeal. FHIR allows patients to use personal devices to access their personal health records PHRs and to interface directly with some medical systems, for example to view their laboratory test results or to book a consultation. HL7 standards include data types, which describe how specific pieces of data are stored in a particular format.

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