HL7 Workbench
Beta
v2.3.1
Data Elements
21
HL7 v2.x
Parser
Sign in
00021
Expected Sequence Number
1999-04-14
...
2.3
Apr
1997
2.3.1
May
1999
2.4
Oct
2000
...
2.24.2.4 Expected sequence number (NM) 00021:
Definition: This optional numeric field is used in the sequence number protocol.
MSA
Message Acknowledgment
MSA-4: Expected Sequence Number
Length
≤15
NM
numeric
Primitive