These ADT event codes are up to date with HL7 2.8.2 standards. The event code should be sent in MSH-9.2 and EVN-1 (if EVN segment is sent). While there are over 60 ADT event codes, not all of them have equal significance in modern healthcare systems.

With HL7 v.2.3.1, event A48 is being retained for backward compatibility, corresponding with PID-4-alternate Patient ID-PID, which is also retained for backward compatibility. Event A47 (change patient identifier list) should be used instead.

ADT_A18: Example Event: A18 / ADT. Message structure. List of Events using this Message Structure: as Sender: A18. ADT_A20: ... Links to Other/Further HL7 Information : generated: Nov 24, 2020 (FO) Health Level Seven, Int. (HQ) HL7 Germany HL7 Europe: Frank Oemig's HL7 Site (Infos about the database)

Dec 1, 2019 · This page is part of the HL7 Terminology (v6.2.0: Release) based on FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version. For a full list of available versions, see the Directory of published versions. Copyright/Legal: This material derives from the HL7 Terminology (THO).

Table 10 lists the HL7 segments of an ADT-A18 message. Segment that are identified by Table 10 as being used are described in detail in the sub sections of this paragraph.

Dec 1, 2019 · This page is part of the HL7 Terminology (v5.1.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0 . For a full list of available versions, see the Directory of published versions

For inbound messages, the “merge records” message (A18 event) is used to combine two patient records into one. This may be used if a second, unwanted record for the same patient has been created accidentally by the other system.

Feb 7, 2023 · This appendix provides a complete list of ADT event types.

Health Level-7 or HL7 EDI is a set of international standards for exchanging, integrating and sharing healthcare messages between hospitals or systems.

The A18 event was used to merge current and previous patient identification numbers: PID-3 - patient identifier list, PID-2 - patient ID, PID-4 - alternate patient ID-PID, and PID-18 - patient account number. This procedure is required, for example, when a previous patient is registered under a new patient identification number because of an ...