We definitely don’t have such pre-coordinated concepts. And my understanding is that the pre-coordination is not the best choice here. Let’s say you have 10-20 tests of interest and then 2-3 scoring systems with 2-3 ways to define the “worst” result.
LOINC provides some content to address the circumstances (at rest, on exertion, post-exercise, etc.), specimen number (1st, 2nd, 3rd, etc.), max/min results (during 1-24 hrs or study) but only for the very generic or specific stuff. I’m even not sure whether they’d add it by the request.
You can start with the following, but it becomes much harder when looking into the rest.
| ID | CODE | NAME | CLASS | CONCEPT | VALIDITY | DOMAIN | VOCAB |
|---|---|---|---|---|---|---|---|
| 3045369 | 44784-7 | Creatinine [Mass/volume] (Maximum value during study) in Serum or Plasma | Lab Test | Standard | Valid | Measurement | LOINC |
| 3044738 | 44783-9 | Sodium [Moles/volume] (Maximum value during study) in Serum or Plasma | Lab Test | Standard | Valid | Measurement | LOINC |
| 3016715 | 8315-4 | Body temperature 24 hour maximum | Clinical Observation | Standard | Valid | Measurement | LOINC |
| 3016778 | 8320-4 | Body temperature - 24 hour minimum | Clinical Observation | Standard | Valid | Measurement | LOINC |
| 3027998 | 8873-2 | Heart rate 24 hour maximum | Clinical Observation | Standard | Valid | Measurement | LOINC |
| 3021545 | 8883-1 | Heart rate 24 hour minimum | Clinical Observation | Standard | Valid | Measurement | LOINC |
Instead of the pre-coordination, there are some other solutions:
- introduction of the modifier/qualifier field to the Measurement table. Was requested several times, needs the decision on the Community level.
- usage of the Oncology module approach where Measurement is a modifier of the event. But it’s not clear what event is to be modified.
- Map to the generic Measurement concepts. Find a way to distinguish these records from generic Measurements, e.g. link to the specific visit_occurrence or visit_detail. Would this differentiation work in the opposite direction in analytical tools?