event_cd observations

[Luke Albertson]

I tried to find this answer in the group and other documentation but not having much luck. If I create a new event_cd and document that in iview / powerform. Is there a way to use the Observation method to read and or write to that event_cd / dta? like pass in the cki value from the code_value table or some other identifier? I'm thinking of just normal every day custom codes that don't tie back to loinc / snomed etc.

Thanks!

Luke

[Aaron McGinn (Cerner)]

You can use the proprietary code values for multiple of the fields on Observation [1]. Once the code (codeset 72) is configured in the event set hierarchy, it can be used in the Observation resource.

[1] https://fhir.cerner.com/millennium/r4/diagnostic/observation/#terminology-bindings

-Aaron (Cerner)

[Luke Albertson]

Aaron that is great. thank you! do you know if I can search for an observation at the encounter level, I think the answer is no, and I'll always get last charted value, but just trying to mimic some ccl I already have, if I need it to be encounter specific. 

Luke 

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[Aaron McGinn (Cerner)]

We unfortunately don't support searching by encounter [1] at this point.

[1] https://fhir.cerner.com/millennium/r4/diagnostic/observation/#parameters

-Aaron (Cerner)

[Luke Albertson]

Aaron,

When I query by an observation for a patient, I do see code_set 72 listed as the system type, which is great, but if I try to limit my query to specific value in code_set 72, I get nothing, using loinc, I get values. 

Is there an example R4 query by code_value for observations?

I see the responses in your link above, but not the URL for obtaining that data.

Thanks!

Luke

[Fenil Desani (Cerner)]

Hello,

You cannot search Observation by proprietary code/event_cd [http://fhir.cerner.com/millennium/r4/diagnostic/observation/#parameters]- 

• The code parameter:
  • May be a list of comma separated values. A system must be provided for each code.
  • Searches only Observation.code. For example when fetching blood pressures the resource will be only be returned when the search is based on 85354-9(Systolic and Diastolic BP). Using the component codes 8480-6(Systolic BP) or 8462-4 (Diastolic BP) will not return the resource.
  • Searching with proprietary codes or systems is not supported.

If you are using LOINC, we would need to make sure that event_cd is mapped to a LOINC you are using.

Thanks,

Fenil (Cerner)

[Luke Albertson]

so we can get a return of code_set 72 when displaying observations, but for our home grown event codes, we are stuck, because we can't map them without your help? 

Is that functionality being developed?

Thank you!

Luke (client)

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