Obx segment example – Welch Allyn Connectivity Server - Programmers guide User Manual
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WACS outbound HL7 protocols
Welch Allyn Connectivity Server
HL7 attributes of OBX (observation/result) segments
OBX segment example
OBX|1|ST|Heart Rate^Heart Rate^WAP||80|^BPM||||||||20090127093400.000-0800
Table 10. HL7 attributes – OBX – observation/result segment
SEQ
LEN
DT
OPT
RP/# TBL#
ITEM#
Element name
WACS
requirement
1
4
SI
O
00569
Set ID - OBX
R
2
2
ID
C
0125
00570
Value Type
R
3
250
CE
R
00571
Observation Identifier
R
4
20
ST
C
00572
Observation Sub-ID
C
5
65536
a
a.
The length of the observation field is variable, depending upon value type. See OBX-2 value type.
*
C
Y
b
b.
May repeat for multipart, single answer results with appropriate data types, e.g., CE, TX, and FT data types.
00573
Observation Value
R
6
250
CE
O
00574
Units
R
7
60
ST
O
00575
References Range
C
8
5
IS
O
Y/5
0078
00576
Abnormal Flags
C
9
5
NM
O
00577
Probability
I
10
2
ID
O
Y
0080
00578
Nature of Abnormal Test
N
11
1
ID
R
0085
00579
Observation Result Status
N
12
26
TS
O
00580
Date Last Observation Normal
Value
N
13
20
ST
O
00581
User Defined Access Checks
N
14
26
TS
O
00582
Date/Time of the Observation
R
15
250
CE
O
00583
Producer's ID
N
16
250
XCN
O
Y
00584
Responsible Observer
N
17
250
CE
O
Y
00936
Observation Method
N
18
22
EI
O
Y
01479
Equipment Instance Identifier
N
19
26
TS
O
01480
Date/Time of the Analysis
N