Natalie Sevcik, Director, Communications and Content

HL7 PV1 segment

HL7 Messages

An HL7 message consists of a group of segments in a defined sequence, with these segments or groups of segments being optional, required, and/or repeatable.

HL7 ADT–Admit Discharge Transfer

HL7 ADT messages carry patient demographic information and provide data about trigger events (such as patient admit, discharge, transfer, registration, etc.).

HL7 PID Segment

HL7 OBR Segment

HL7 OBR segments transmit data about an exam, diagnostic study, or assessment that is specific to an order or result. Used most often in ORM and ORU messages.

HL7 OBX Segment

HL7 OBX segments are used to carry key clinical results reporting information within report messages, which must be transmitted back to the requesting system.