Personal Health Device Implementation Guide, published by HL7 International / Health Care Devices. This guide is not an authorized publication; it is the continuous build for version 2.0.0-ballot2 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/phd/ and changes regularly. See the Directory of published versions

• Narrative Content
• XML
• JSON
• TTL

: Example of a NaN case - XML Representation

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<Observation xmlns="http://hl7.org/fhir">
  <id value="numeric-observation-not-a-number"/>
  <meta>
    <profile
             value="http://hl7.org/fhir/uv/phd/StructureDefinition/PhdNumericObservation"/>
  </meta>
  <text>
    <status value="extensions"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: Observation numeric-observation-not-a-number</b></p><a name="numeric-observation-not-a-number"> </a><a name="hcnumeric-observation-not-a-number"> </a><div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px"/><p style="margin-bottom: 0px">Profile: <a href="StructureDefinition-PhdNumericObservation.html">PhdNumericObservation</a></p></div><p><b>Observation Gateway Device</b>: <a href="Device-phg-ecde3d4e58532d31.000000000000.html">Device: identifier = IEEE 11073 System Identifier,Bluetooth MAC address,Ethernet MAC address; type = MDC_MOC_VMS_MDS_AHD</a></p><p><b>status</b>: Final</p><p><b>category</b>: <span title="Codes:{http://hl7.org/fhir/uv/phd/CodeSystem/PhdObservationCategories phd}">PHD generated Observation</span></p><p><b>code</b>: <span title="Codes:{urn:iso:std:iso:11073:10101 150320}">MDC_SAT_O2_QUAL</span></p><p><b>subject</b>: <a href="Patient-patientExample-1.html">Sisansarah Lorianthah Piggy  (no stated gender), DoB Unknown ( Medical record number)</a></p><p><b>effective</b>: 2018-11-11 19:07:48-0500</p><p><b>dataAbsentReason</b>: <span title="Codes:{http://terminology.hl7.org/CodeSystem/data-absent-reason not-a-number}">Not a Number (NaN)</span></p><p><b>device</b>: <a href="Device-phd-74E8FFFEFF051C00.001C05FFE874.html">Device: identifier = IEEE 11073 System Identifier: 74-E8-FF-FE-FF-05-1C-00,Bluetooth MAC address: Bluetooth Address as a device identifier#00-1C-05-FF-E8-74; manufacturer = Nonin_Medical_Inc.; serialNumber = 501900083; modelNumber = Model 3230; type = MDC_MOC_VMS_MDS_SIMP</a></p></div>
  </text>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/observation-gatewayDevice">
    <valueReference>🔗 
      <reference value="Device/phg-ecde3d4e58532d31.000000000000"/>
    </valueReference>
  </extension>
  <status value="final"/>
  <category>
    <coding>
      <system
              value="http://hl7.org/fhir/uv/phd/CodeSystem/PhdObservationCategories"/>
      <code value="phd"/>
    </coding>
  </category>
  <code>
    <coding>
      <system value="urn:iso:std:iso:11073:10101"/>
      <code value="150320"/>
      <display value="MDC_SAT_O2_QUAL"/>
    </coding>
  </code>
  <subject>🔗 
    <reference value="Patient/patientExample-1"/>
  </subject>
  <effectiveDateTime value="2018-11-11T19:07:48-05:00"/>
  <dataAbsentReason>
    <coding>
      <system
              value="http://terminology.hl7.org/CodeSystem/data-absent-reason"/>
      <code value="not-a-number"/>
      <display value="Not a Number (NaN)"/>
    </coding>
  </dataAbsentReason>
  <device>🔗 
    <reference value="Device/phd-74E8FFFEFF051C00.001C05FFE874"/>
  </device>
</Observation>