ADT^A18: Merge patient information

Merge patient information. It's sent as an ADT message (ADT message) with the ADT_A18 message structure.

Message type

ADT · ADT message

Trigger event

A18

Message structure

ADT_A18 · per HL7's current table 0354; older versions sometimes paired events differently

In MSH-9

ADT^A18^ADT_A18

Response

ACK · General acknowledgment message

Source: HL7 Terminology (THO) 7.4.0, published by HL7 International under CC0. Check your trading partner's specification for the values they actually send.