haau3 FHIR Implementation Guide (HFIG)
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: MedList Evidence - XML Representation

Active as of 2026-09-25

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="medlist-evidence"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem medlist-evidence</b></p><a name="medlist-evidence"> </a><a name="hcmedlist-evidence"> </a><p><b>Properties</b></p><p><b>This code system defines the following properties for its concepts</b></p><table class="grid"><tr><td><b>Name</b></td><td><b>Code</b></td><td><b>Type</b></td><td><b>Description</b></td></tr><tr><td>topic</td><td>topic</td><td>string</td><td>What the code is about: status (why the entry has its status) or medication (how the entry's medication was coded).</td></tr></table><p><b>Concepts</b></p><p>This case-sensitive code system <code>https://haau3.com/fhir/CodeSystem/medlist-evidence</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td><td><b>topic</b></td></tr><tr><td style="white-space:nowrap">recent-dispense<a name="medlist-evidence-recent-dispense"> </a></td><td>Recent dispense</td><td>A dispense of this medication was recorded recently enough to count it as current.</td><td>status</td></tr><tr><td style="white-space:nowrap">active-order<a name="medlist-evidence-active-order"> </a></td><td>Active order</td><td>An order for this medication is active and was written recently enough to count it as current.</td><td>status</td></tr><tr><td style="white-space:nowrap">undated-order<a name="medlist-evidence-undated-order"> </a></td><td>Undated active order</td><td>An order for this medication is active but carries no date, so its recency could not be judged. The entry counts as current on the order's status alone.</td><td>status</td></tr><tr><td style="white-space:nowrap">patient-reported<a name="medlist-evidence-patient-reported"> </a></td><td>Patient-reported use</td><td>Use of this medication was reported by the patient or by someone acting for them, such as a family member, recently enough to count it as current.</td><td>status</td></tr><tr><td style="white-space:nowrap">reported-use<a name="medlist-evidence-reported-use"> </a></td><td>Reported use from a source of record</td><td>Use of this medication was reported by a source of record, such as a clinic, a pharmacy or a health plan, recently enough to count it as current.</td><td>status</td></tr><tr><td style="white-space:nowrap">undated-report<a name="medlist-evidence-undated-report"> </a></td><td>Undated report of use</td><td>A source states that this medication is in use but carries no date, so its recency could not be judged. The entry counts as current on the statement's status alone.</td><td>status</td></tr><tr><td style="white-space:nowrap">course-completed<a name="medlist-evidence-course-completed"> </a></td><td>Course completed</td><td>A source states that this medication's course is complete: a completed status, or an end date that has passed.</td><td>status</td></tr><tr><td style="white-space:nowrap">prescription-expired<a name="medlist-evidence-prescription-expired"> </a></td><td>Prescription expired</td><td>The only support for this medication is an order old enough that it no longer counts as current, with no dispense to corroborate it.</td><td>status</td></tr><tr><td style="white-space:nowrap">order-stopped<a name="medlist-evidence-order-stopped"> </a></td><td>Order stopped</td><td>An order or statement for this medication was stopped by its source.</td><td>status</td></tr><tr><td style="white-space:nowrap">order-cancelled<a name="medlist-evidence-order-cancelled"> </a></td><td>Order cancelled</td><td>An order for this medication was cancelled by its source.</td><td>status</td></tr><tr><td style="white-space:nowrap">order-on-hold<a name="medlist-evidence-order-on-hold"> </a></td><td>Order on hold</td><td>An order or statement for this medication is on hold at its source.</td><td>status</td></tr><tr><td style="white-space:nowrap">patient-not-taking<a name="medlist-evidence-patient-not-taking"> </a></td><td>Patient not taking</td><td>A source states that the patient is not taking this medication.</td><td>status</td></tr><tr><td style="white-space:nowrap">intended<a name="medlist-evidence-intended"> </a></td><td>Intended, not started</td><td>A source states that this medication is intended and has not been started.</td><td>status</td></tr><tr><td style="white-space:nowrap">conflicting-sources<a name="medlist-evidence-conflicting-sources"> </a></td><td>Conflicting sources</td><td>The source records disagree about this medication's status. The entry carries the status haau3 concluded, and the other signals are listed beside this code.</td><td>status</td></tr><tr><td style="white-space:nowrap">stale-data<a name="medlist-evidence-stale-data"> </a></td><td>Stale data</td><td>Every record of this medication is too old to support a conclusion about its current status.</td><td>status</td></tr><tr><td style="white-space:nowrap">insufficient-signal<a name="medlist-evidence-insufficient-signal"> </a></td><td>Insufficient signal</td><td>The records carry nothing that supports a conclusion about this medication's current status.</td><td>status</td></tr><tr><td style="white-space:nowrap">rxnorm-not-held<a name="medlist-evidence-rxnorm-not-held"> </a></td><td>RxNorm code not in the held release</td><td>The medication's RxNorm code is absent from the RxNorm release this list was built against, so it was kept as stated and not resolved to a clinical drug.</td><td>medication</td></tr><tr><td style="white-space:nowrap">rxnorm-not-clinical-drug<a name="medlist-evidence-rxnorm-not-clinical-drug"> </a></td><td>RxNorm code is not a clinical drug</td><td>The medication's RxNorm code names an ingredient, a brand name or another level that does not resolve to one clinical drug, so no clinical-drug coding was added. The entry was matched on the code as stated.</td><td>medication</td></tr><tr><td style="white-space:nowrap">brand-folded<a name="medlist-evidence-brand-folded"> </a></td><td>Brand folded to generic</td><td>A branded source record was folded into this entry's generic clinical drug. The branded coding is kept on the entry beside the generic one, so the brand a source named is not lost.</td><td>medication</td></tr><tr><td style="white-space:nowrap">brand-required<a name="medlist-evidence-brand-required"> </a></td><td>Brand required</td><td>A source order says the branded product must be dispensed as written, and the records do not show whether the brand or its generic is the one in use, so the brand and the generic are listed as their own entries. Each carries this code.</td><td>medication</td></tr><tr><td style="white-space:nowrap">no-rxnorm<a name="medlist-evidence-no-rxnorm"> </a></td><td>No RxNorm code</td><td>No source record for this medication carries an RxNorm code, so no clinical-drug coding was added.</td><td>medication</td></tr></table></div>
  </text>
  <url value="https://haau3.com/fhir/CodeSystem/medlist-evidence"/>
  <version value="1.0.0"/>
  <name value="MedlistEvidenceCS"/>
  <title value="MedList Evidence"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2026-09-25T18:52:03+00:00"/>
  <publisher value="haau3"/>
  <contact>
    <name value="haau3"/>
    <telecom>
      <system value="url"/>
      <value value="https://haau3.com"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="hello@haau3.com"/>
    </telecom>
  </contact>
  <description
               value="Signals haau3 records on a reconciled medication entry to say why the entry has its status and how its medication was coded. Each code names what was found in the patient's records and what it means for the entry. An entry carries every code that applies."/>
  <jurisdiction>
    <coding>
      <system value="urn:iso:std:iso:3166"/>
      <code value="US"/>
      <display value="United States of America"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <count value="21"/>
  <property>
    <code value="topic"/>
    <description
                 value="What the code is about: status (why the entry has its status) or medication (how the entry's medication was coded)."/>
    <type value="string"/>
  </property>
  <concept>
    <code value="recent-dispense"/>
    <display value="Recent dispense"/>
    <definition
                value="A dispense of this medication was recorded recently enough to count it as current."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="active-order"/>
    <display value="Active order"/>
    <definition
                value="An order for this medication is active and was written recently enough to count it as current."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="undated-order"/>
    <display value="Undated active order"/>
    <definition
                value="An order for this medication is active but carries no date, so its recency could not be judged. The entry counts as current on the order's status alone."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="patient-reported"/>
    <display value="Patient-reported use"/>
    <definition
                value="Use of this medication was reported by the patient or by someone acting for them, such as a family member, recently enough to count it as current."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="reported-use"/>
    <display value="Reported use from a source of record"/>
    <definition
                value="Use of this medication was reported by a source of record, such as a clinic, a pharmacy or a health plan, recently enough to count it as current."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="undated-report"/>
    <display value="Undated report of use"/>
    <definition
                value="A source states that this medication is in use but carries no date, so its recency could not be judged. The entry counts as current on the statement's status alone."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="course-completed"/>
    <display value="Course completed"/>
    <definition
                value="A source states that this medication's course is complete: a completed status, or an end date that has passed."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="prescription-expired"/>
    <display value="Prescription expired"/>
    <definition
                value="The only support for this medication is an order old enough that it no longer counts as current, with no dispense to corroborate it."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="order-stopped"/>
    <display value="Order stopped"/>
    <definition
                value="An order or statement for this medication was stopped by its source."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="order-cancelled"/>
    <display value="Order cancelled"/>
    <definition
                value="An order for this medication was cancelled by its source."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="order-on-hold"/>
    <display value="Order on hold"/>
    <definition
                value="An order or statement for this medication is on hold at its source."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="patient-not-taking"/>
    <display value="Patient not taking"/>
    <definition
                value="A source states that the patient is not taking this medication."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="intended"/>
    <display value="Intended, not started"/>
    <definition
                value="A source states that this medication is intended and has not been started."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="conflicting-sources"/>
    <display value="Conflicting sources"/>
    <definition
                value="The source records disagree about this medication's status. The entry carries the status haau3 concluded, and the other signals are listed beside this code."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="stale-data"/>
    <display value="Stale data"/>
    <definition
                value="Every record of this medication is too old to support a conclusion about its current status."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="insufficient-signal"/>
    <display value="Insufficient signal"/>
    <definition
                value="The records carry nothing that supports a conclusion about this medication's current status."/>
    <property>
      <code value="topic"/>
      <valueString value="status"/>
    </property>
  </concept>
  <concept>
    <code value="rxnorm-not-held"/>
    <display value="RxNorm code not in the held release"/>
    <definition
                value="The medication's RxNorm code is absent from the RxNorm release this list was built against, so it was kept as stated and not resolved to a clinical drug."/>
    <property>
      <code value="topic"/>
      <valueString value="medication"/>
    </property>
  </concept>
  <concept>
    <code value="rxnorm-not-clinical-drug"/>
    <display value="RxNorm code is not a clinical drug"/>
    <definition
                value="The medication's RxNorm code names an ingredient, a brand name or another level that does not resolve to one clinical drug, so no clinical-drug coding was added. The entry was matched on the code as stated."/>
    <property>
      <code value="topic"/>
      <valueString value="medication"/>
    </property>
  </concept>
  <concept>
    <code value="brand-folded"/>
    <display value="Brand folded to generic"/>
    <definition
                value="A branded source record was folded into this entry's generic clinical drug. The branded coding is kept on the entry beside the generic one, so the brand a source named is not lost."/>
    <property>
      <code value="topic"/>
      <valueString value="medication"/>
    </property>
  </concept>
  <concept>
    <code value="brand-required"/>
    <display value="Brand required"/>
    <definition
                value="A source order says the branded product must be dispensed as written, and the records do not show whether the brand or its generic is the one in use, so the brand and the generic are listed as their own entries. Each carries this code."/>
    <property>
      <code value="topic"/>
      <valueString value="medication"/>
    </property>
  </concept>
  <concept>
    <code value="no-rxnorm"/>
    <display value="No RxNorm code"/>
    <definition
                value="No source record for this medication carries an RxNorm code, so no clinical-drug coding was added."/>
    <property>
      <code value="topic"/>
      <valueString value="medication"/>
    </property>
  </concept>
</CodeSystem>