HL7 Messages
From VistApedia
Health Language 7 is a protocol for sending information between health computing systems. HL7 messages are sent as text through a TCP/IP connection. Each Message consists of several lines, each of which start with a three letter name.
VistA has several HL7 files that specify how messages are transmitted and received:
| File Number | File Name | Description |
|---|---|---|
| FILE 771 | HL7 APPLICATION PARAMETER | |
| FILE 771.1 | HL7 FIELD | |
| FILE 771.2 | HL7 MESSAGE TYPE | |
| FILE 771.3 | HL7 SEGMENT TYPE | |
| FILE 771.4 | HL7 DATA TYPE | |
| FILE 771.5 | HL7 VERSION | |
| FILE 771.6 | HL7 MESSAGE STATUS | |
| FILE 771.7 | HL7 ERROR MESSAGE | |
| FILE 771.8 | HL7 STANDARD | |
| FILE 771.9 | HL7 DEGREE | |
| FILE 772 | HL7 MESSAGE TEXT | |
| FILE 773 | HL7 MESSAGE ADMINISTRATION | |
| FILE 776 | HL7 MONITOR JOB | |
| FILE 776.1 | HL7 MONITOR | |
| FILE 776.2 | HL7 MONITOR MASTER JOB | |
| FILE 776.3 | HL7 MONITOR EVENT TYPE | |
| FILE 776.4 | HL7 MONITOR EVENT | |
| FILE 776.5 | HL7 MONITOR EVENTS PROFILE | |
| FILE 776.999 | HL7 MONITOR PARAMETERS | |
| FILE 777 | HLO MESSAGE BODY | |
| FILE 778 | HLO MESSAGES | |
| FILE 779.001 | HL7 EVENT TYPE CODE | |
| FILE 779.002 | HL7 ACKNOWLEDGEMENT CODE | |
| FILE 779.003 | HL7 ACCEPT/APPLICATION ACK CONDITION | |
| FILE 779.005 | HL7 MESSAGE STRUCTURE CODE | |
| FILE 779.1 | HLO SYSTEM PARAMETERS | |
| FILE 779.11 | HLO ERROR SCREENS | |
| FILE 779.2 | HLO APPLICATION REGISTRY | |
| FILE 779.3 | HLO PROCESS REGISTRY | |
| FILE 779.4 | HLO SUBSCRIPTION REGISTRY | |
| FILE 779.5 | HLO SEGMENT DEFINITIONS | |
| FILE 779.9 | HLO PRIORITY QUEUES | |
| FILE 869.1 | HL LOWER LEVEL PROTOCOL TYPE | |
| FILE 869.2 | HL LOWER LEVEL PROTOCOL PARAMETER | |
| FILE 869.3 | HL COMMUNICATION SERVER PARAMETERS | |
| FILE 870 | HL LOGICAL LINK |
