OBX
Observation/Result
The OBX segment is documented in its entirety in Chapter 7. Its usage as it applies to Medical Records/ Information Management is documented here for clarity.
Figure 9-4. OBX attributes
RRequiredOOptionalCConditionalWWithdrawn|#Date/Time*Backward compat.+Filler
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| C.Len | Element | v2.3 | FHIR | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ..4 | - | SI | O | 1 | - | 00569 | OBX-1 | Set ID - OBX | - | |
| 2 | ..3 | - | ID | C | 1 | 0125 | 00570 | OBX-2 | Value Type | 2 | - |
| 3 | ..80 | - | CE | R | 1 | - | 00571 | OBX-3 | Observation Identifier | Length | 3 mappings |
| 4 | ..20 | - | ST | C | 1 | - | 00572 | OBX-4 | Observation Sub-ID | 2 mappings | |
| 5 | ..65536 | - | varies | C | * | - | 00573 | OBX-5 | Observation Value | 53 mappings | |
| 6 | ..60 | - | CE | O | 1 | - | 00574 | OBX-6 | Units | 12 mappings | |
| 7 | ..60 | - | ST | O | 1 | - | 00575 | OBX-7 | References Range | Length | 2 mappings |
| 8 | ..5 | - | ID | O | 5 | 0078 | 00576 | OBX-8 | Abnormal Flags | 2 mappings | |
| 9 | ..5 | - | NM | O | 5 | - | 00577 | OBX-9 | Probability | Repetition | - |
| 10 | ..2 | - | ID | O | 1 | 0080 | 00578 | OBX-10 | Nature of Abnormal Test | 4 mappings | |
| 11 | ..1 | - | ID | R | 1 | 0085 | 00579 | OBX-11 | Observation Result Status | Name | 12 mappings |
| 12 | ..26 | - | TS | O | 1 | - | 00580 | OBX-12 | Date Last Obs Normal Values | Optionality | - |
| 13 | ..20 | - | ST | O | 1 | - | 00581 | OBX-13 | User Defined Access Checks | - | |
| 14 | ..26 | - | TS | O | 1 | - | 00582 | OBX-14 | Date/Time of the Observation | 2 mappings | |
| 15 | ..60 | - | CE | O | 1 | - | 00583 | OBX-15 | Producer's ID | Optionality | 2 mappings |
| 16 | ..80 | - | XCN | O | * | - | 00584 | OBX-16 | Responsible Observer | Repetition | 6 mappings |
| 17 | ..60 | - | CE | O | * | - | 00936 | OBX-17 | Observation Method | Length | 2 mappings |
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