ADT A05: Pre-Admit a patient


Records an expected future admission of a patient. Additionally, an appointment will be created in the patient's calendar.

Relevant entities

Please click through to the Data Model to explore the presentation of these entities in the web interface.

Update behaviour


Matched on: [[Encounter.External Encounter ID]] as derived from PV1-19.1

When matched: The [[Encounter Event]] will be handled as indicated below.

When not matched: A new [[Encounter]] will be created with this message.

[[Encounter Event]]

Matched on: An Encounter can contain zero or one pre-admit [[Encounter Event]]s. If the [[Encounter]] has been matched, then there will be at most one pre-admit [[Encounter Event]], so no other IDs are required for matching.

When matched: The pre-admit [[Encounter Event]] is replaced with the information in this message.

When not matched: The pre-admit [[Encounter Event]] will be added to the [[Encounter]].


Matched on: PKB maintains an internal link joining the [[Encounter]] to the [[Appointment]]. No additional external IDs required.

When matched: The [[Appointment]] information is replaced with the information in this message.

When not matched: A new [[Appointment]] is created and associated with this [[Encounter]].


This is identical in format to the ADT A01, except that an [[Appointment]] entity will also be populated. In addition, since this message is typically used for future events, PV2-8 and EVN-3 will also be considered when determining both the event timestamp and the appointment start time. This is shown below.




PID|||9999999999^^^NHS^NH||Smith^John^Joe^^Mr||19700101|M|||Flat name^1, The Road^London^London^SW1A 1AA^GBR||01234567890^PRN~07123456789^PRS|^NET^^^WPN||||||||||||||||N|

PV1|1|I|^^^^^^^^My Ward||||^Jones^Stuart^James^^Dr^|^Smith^William^^^Dr^|^Foster^Terry^^^Mr^||||||||||V00001|||||||||||||||||||||||||201508011000|201508011200


PKB will respond with a standard HL7 acknowledgement.