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Observation Value Sets


Class of observation made

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All codes included in symptom Observation of a sign of symptom of an underlying condition.


Whether the observation is complete and definite. The set of values is a subset of status values associated with lab tests.

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prelimary This is an initial or interim observation: data may be incomplete or unverified.
final The observation is complete.
amended The observation has been modified subsequent to being final.


The reason that an exposure occurred.

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voluntary The subject voluntarily subjects him or herself to the exposure, for example, smoking or using a drug recreationally. ExposureReasonCS
addiction The subject is addicted to the substance. ExposureReasonCS
self_prescribed The subject takes a non-prescription substance to address health issues or for prevention, e.g. herbal remedy for depression. ExposureReasonCS
occupational Exposure in a workplace setting. ExposureReasonCS
home Exposure in home setting. ExposureReasonCS
passive The exposure occurred or occurs involuntarily, e.g., exposure to second-hand smoke. ExposureReasonCS
accidental The exposure as a result of an accident. ExposureReasonCS


An explanation of why the observation was not made (or ordered), i.e., why test was not ordered, or why a question was not asked. Since an observation is really a type of procedure, reasons that an observation was not carried out are similar to reasons any procedure might not be carried out.

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not_applicable The question or data element is not applicable, or based on other answers, no answer to this question is required. ObservationNotMadeReasonCS
contraindicated The test or observation is contraindicated, i.e., the subject is intolerant or at risk of an adverse reaction if subjected to the test or observation. ObservationNotMadeReasonCS
redundant The observation has made previously, or a previous test result is available, a new test or observation would be redundant. ObservationNotMadeReasonCS
cost The observation would be too costly. ObservationNotMadeReasonCS
refused The subject refused the observation. ObservationNotMadeReasonCS


An observable sign or symptom of an underlying physical or psychological cause.

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All codes descending from 418799008 Condition reported by subject or history provider


Description TBD

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All codes found in CodeSystem
All codes found in CodeSystem
All codes found in CodeSystem