An A01 event is intended to be used for "Admitted" patients only. An A01 event is sent as a result of a patient undergoing the admission process which assigns the patient to a bed. It signals the beginning of a patient's stay in a healthcare facility. Normally, this information is entered in the primary Patient Administration system and broadcast to the nursing units and ancillary systems. It includes short stay and "Adam Everyman" (e.g., patient name is unknown) admissions. For example, an A01 event can be used to notify: the pharmacy system that a patient has been admitted and may be legitimately prescribed drugs; the nursing system that the patient has been admitted and needs a care plan prepared; the finance system of the start of the billing period; the dietary system that a new patient has been installed and requires dietary services; the laboratory, pathology, and radiology systems that a patient has been admitted and is entitled to receive services; the clinical repository that an admission has taken place for the EMR (electronic medical record).
When an account's start and end dates span a period greater than any particular visit, the P01 (add patient account) event should be used to transmit the opening of an account. The A01 event can notify systems of the creation of an account as well as notify them of a patient's arrival in the healthcare facility. In order to create a new account without notifying of patient's arrival, use the P01 event.
Message Structure
31 segments
R RequiredO Optional Choice
MSH
R1SFT
O*UAC
O1EVN
R1PID
R1PD1
O1ARV
O*ROL
O*NK1
O*PV1
R1PV2
O1ARV
O*ROL
O*DB1
O*OBX
O*AL1
O*DG1
O*DRG
O1PROCEDURE
O*PR1
R1ROL
O*GT1
O*INSURANCE
O*IN1
R1IN2
O1IN3
O*ROL
O*AUT
O*RF1
O*ACC
O1UB1
O1UB2
O1PDA
O14 events