Glossary · Standards
HL7 v2
Health Level Seven version 2
HL7 v2 is the pipe-delimited messaging standard, first published in 1989, that hospital systems still use to send admissions, orders and results to each other.
A message is a list of segments (MSH, PID, OBR, OBX) carried over MLLP, and it remains the most common interface inside hospitals even where FHIR is used outside.
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Definitions written by Anpheros from the official sources linked on each page. General information about standards and regulation, not legal or medical advice. All terms →