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 patients stay in a healthcare facility. Normally, this information is entered in the primary ADT system and broadcast to the nursing units and ancillary systems. It includes short stay and John Doe 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, 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 accounts start and end dates span a period greater than any particular visit, the P01 (add 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 patients arrival in the healthcare facility. In order to create a new account without notifying of patients arrival, use the P01 event.
ADT ADT Message Chapter
MSH Message Header 2
EVN Event Type 3
PID Patient Identification 3
[PD1] Additional Demographics 3
[ { NK1 } ] Next of Kin / Associated Parties 3
PV1 Patient Visit 3
[ PV2 ] Patient Visit - Additional Info. 3
[ { DB1 } ] Disability Information 3
[ { OBX } ] Observation/Result 7
[ { AL1 } ] Allergy Information 3
[ { DG1 } ] Diagnosis Information 6
[ DRG ] DRG Information 6
[ { PR1 Procedures 6
[{ROL}] Role 12
}]
[ { GT1 } ] Guarantor Information 6
[
{ IN1 Insurance Information 6
[ IN2 ] Insurance Information - Addit. Info. 6
[ IN3 ] Insurance Information - Cert. 6
}
]
[ ACC ] Accident Information 6
[ UB1 ] Universal Bill Information 6
[ UB2 ] Universal Bill 92 Information 6
ACK General Acknowledgment Chapter
MSH Message Header 2
MSA Message Acknowledgment 2
[ ERR ] Error 2