00574

Units

2020-01-06
Definition: This field contains the units of measurement for the value in OBX-5, Observation Value. Coding system from which the values may be drawn include, UCUM, ISO+, ANSI X3.50 - 1986 and site specific (local) coding systems. Considering Version 3 direction and consistent use of V2 and V3 messages/documents within an organization, use of UCUM is strongly recommended. Refer to Table 0623 - Units in Chapter 2C for valid values.

Note that OBX-6 applies to both OBX-5.2 and OBX-5.4 if OBX-2 = “SN”.

LengthNot specified
0623Units (OBX-6)
22 components
1O-Identifier
2O-Text
3CName of Coding System
4O-Alternate Identifier
5O-Alternate Text
6CName of Alternate Coding System
7C-Coding System Version ID
8O-Alternate Coding System Version ID
9O-Original Text
10O-Second Alternate Identifier
11O-Second Alternate Text
12CName of Second Alternate Coding System
13O-Second Alternate Coding System Version ID
14C-Coding System OID
15O-Value Set OID
16C-Value Set Version ID
17C-Alternate Coding System OID
18O-Alternate Value Set OID
19C-Alternate Value Set Version ID
20C-Second Alternate Coding System OID
21O-Second Alternate Value Set OID
22C-Second Alternate Value Set Version ID