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Severity Observation

[Observation: templateId 2.16.840.1.113883.10.20.22.4.8]

This clinical statement represents the gravity of the problem, such as allergy or reaction, in terms of its actual or potential impact on the patient. The Severity Observation can be associated with an Allergy Obervation, Reaction Observation or both. When the Severity Observation is associated directly with an Allergy it characterizes the Allergy. When the Severity Observation is associated with a Reaction Observation it characterizes a Reaction. A person may manifest many symptoms in a reaction to a single substance, and each reaction to the substance can be represented. However, each reaction observation can have only one severity observation associated with it. For example, someone may have a rash reaction observation as well as an itching reaction observation, but each can have only one level of severity

  1. SHALL contain exactly one [1..1] templateId ( CONF:7347, CONF:10525 ) such that it
    1. SHALL contain exactly one [1..1] @root="2.16.840.1.113883.10.20.22.4.8"
  2. SHALL contain exactly one [1..1] @classCode="OBS" Observation (CodeSystem: 2.16.840.1.113883.5.6 HL7ActClass) (CONF:7345)
  3. SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: 2.16.840.1.113883.5.1001 HL7ActMood) (CONF:7346)
  4. SHALL contain exactly one [1..1] code/@code="SEV" Severity observation (CodeSystem: 2.16.840.1.113883.5.4 HL7ActCode) (CONF:7349)
  5. SHOULD contain zero or one [0..1] text (CONF:7350)
  6. SHALL contain exactly one [1..1] statusCode/@code="completed" (CodeSystem: 2.16.840.1.113883.5.14 ActStatus) (CONF:7352)
  7. SHALL contain exactly one [1..1] value with data type CD, where the @code SHALL be selected from ValueSet Problem Severity 2.16.840.1.113883.3.88.12.3221.6.8 DYNAMIC (CONF:7356)
  8. SHOULD contain zero or more [0..*] interpretationCode, where the @code SHOULD be selected from ValueSet Observation Interpretation (HL7) 2.16.840.1.113883.1.11.78 STATIC 1 (CONF:9117, CONF:16038)
  9. text, if present, SHOULD contain zero or one [0..1] reference (CONF:15928)
  10. reference, if present, SHOULD contain zero or one [0..1] @value (CONF:15929)
  11. reference/@value SHALL begin with a '#' and SHALL point to its corresponding narrative (using the approach defined in CDA Release 2, section 4.3.5.1) (CONF:15930)

Severity Observation example

<observation xmlns="urn:hl7-org:v3">
  <id root="MDHT" extension="933053767"/>
  <code code="1574740253"/>
  <text>Text Value</text>
  <effectiveTime>
    <low value="2013"/>
    <high value="2013"/>
  </effectiveTime>
</observation>