HL7 Workbench
Beta
v2.1
Message Structures
ACK
HL7 v2.x
Parser
Sign in
ACK
Standard Acknowlegdement
3 segments · 32 events
2.1
Dec
1992
2.2
Nov
1994
2.3
Apr
1997
...
Message Structure
Message Structure
3 segments
Tree
Grammar
R
Required
O
Optional
Choice
MSH
R
1
MSA
R
1
ERR
O
1
Used by Events
32 events
A01
Admit a Patient
A02
Transfer a Patient
A03
Discharge a Patient
A04
Register a Patient
A05
Pre-admit a Patient
A06
Transfer an Outpatient to Inpatient
A07
Transfer an Inpatient to Outpatient
A08
Update Patient Information
A09
Patient Departing
A10
Patient Arriving
A11
Cancel Admit
A12
Cancel Transfer
A13
Cancel Discharge
A14
Pending Admit
A15
Pending Transfer
A16
Pending Discharge
A17
Swap Patients
A18
Merge Patient Information
A20
Nursing/Census Application Updates
A21
A Patient Goes On A "Leave Of Absence"
A22
A Patient Returns From A "Leave Of Absence"
A23
Delete a Patient Record
A24
Create a Patient Link Transaction
O01
Order Message
O02
Respone Message
P01
Add and Update Patient Accounts
P02
Purge Patient Accounts
P03
Post Detail Financial Transactions
Q03
Deferred Response to A Query
Q05
Unsolicited Updates, ODM Message, Trigger Event Q05
R01
Unsolicited transmission of requested Obersvation
R03
Display oriented results, queyr/unsol. update