ADT^A45 — Move Visit Information — Visit Number

Move a visit (PV1-19 Visit Number) from one patient to another. Post-hoc remediation tool for administrative errors.

Purpose

A45 moves a visit (Visit Number, identifier PV1-19) from one patient to another. All Observations, MedicationAdministrations, Procedures attached to the visit follow. Typical case: visit captured under the wrong patient in emergency intake.

Segment structure

Structure ADT_A45. MSH, EVN, PID (new patient), PV1 (new visit), MRG (former patient + visit to move).

Real-world example

Move of visit VN20260518009 from patient MR100701 to MR100700:

MSH|^~\&|EHR|HOSP01|LIS|CLINIC02|20260518160000||ADT^A45^ADT_A45|MSG00045001|P|2.5.1|||AL|NE
EVN|A45|20260518160000|||ADM003^Manager^Visit^^^MS.|MOVE VISIT TO CORRECT PATIENT
PID|1||MR100700^^^HOSP^MR||GARCIA^LUCIA^^^MS.||19840801|F
PV1|1|I|ICU^301^A|||||DR_LAURENT^Laurent^Anne||||||||||||VN20260518009
MRG|MR100701^^^HOSP^MR||||||VN20260518009

Acknowledgment (ACK)

MSH|^~\&|LIS|CLINIC02|EHR|HOSP01|20260518160001||ACK^A45^ACK|ACK00045001|P|2.5.1
MSA|AA|MSG00045001

Common errors

• Observations / orders not re-attached: every clinical resource tied to the visit must follow the move.
• Confusion A45 / A44: A44 = account, A45 = visit.
• Visit number missing: without MRG-7 or PV1-19, the receiver does not know which visit to move.

Related ADT events

See also: ADT^A44, ADT^A50.