HL7 Electronic Health Record System Functional Model, Release 2.1.1
2.1.1-ballot - Normative Ballot

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## : CP.4.2.1 Medication Interaction and Allergy Checking (Function) - XML Representation

Page standards status: Informative

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    <Requirements xmlns="http://hl7.org/fhir">
      <id value="EHRSFMR2-CP.4.2.1"/>
      <meta>
        <profile
                 value="http://hl7.org/ehrs/uv/ehrsfmr2/StructureDefinition/FMFunction"/>
      </meta>
      <text>
        <status value="extensions"/>
        <div xmlns="http://www.w3.org/1999/xhtml">
        <span id="description"><b>Statement <a href="https://hl7.org/fhir/versions.html#std-process" title="Normative Content" class="normative-flag">N</a>:</b> <div><p>Provide alerts for potential medication interactions and medication allergy reactions.</p>
    </div></span>

        <span id="purpose"><b>Description <a href="https://hl7.org/fhir/versions.html#std-process" title="Informative Content" class="informative-flag">I</a>:</b> <div><p>Check and provide alerts at the time of medication order based upon coded, active and non-active medications for possible interactions, allergies, sensitivities, intolerances, and other adverse reactions.</p>
    </div></span>

        <span id="actors"><b>Actors:</b><br/> ehr</span>

        <span id="requirements"><b>Criteria <a href="https://hl7.org/fhir/versions.html#std-process" title="Normative Content" class="normative-flag">N</a>:</b></span>

        <table id="statements" class="grid dict">

            <tr>
                <td style="padding-left: 4px;">

                    <span>CP.4.2.1#01</span>

                </td>
                <td style="padding-left: 4px;">

                    <span>SHALL</span>

                </td>
                <td style="padding-left: 4px;" class="requirement">

                    <span><div><p>The system SHALL conform to function <a href="Requirements-EHRSFMR2-CPS.4.2.1.html">CPS.4.2.1</a> (Support for Medication Interaction and Allergy Checking) to determine allergic reactions, drug-drug interactions, and other potential adverse reactions, and render alerts or notifications when new medications are ordered.</p>
    </div></span>

                </td>
            </tr>

            <tr>
                <td style="padding-left: 4px;">

                    <span>CP.4.2.1#02</span>

                </td>
                <td style="padding-left: 4px;">

                    <span>SHALL</span>

                </td>
                <td style="padding-left: 4px;" class="requirement">

                    <span><div><p>The system SHALL conform to function <a href="Requirements-EHRSFMR2-CP.1.2.html">CP.1.2</a> (Manage Allergy, Intolerance and Adverse Reaction List) to provide the ability to manage interaction and allergy checking and render alerts and notifications when new medications are ordered.</p>
    </div></span>

                </td>
            </tr>

            <tr>
                <td style="padding-left: 4px;">

                    <span>CP.4.2.1#03</span>

                </td>
                <td style="padding-left: 4px;">

                    <span>MAY</span>

                </td>
                <td style="padding-left: 4px;" class="requirement">

                    <span><div><p>The system MAY provide the ability to render an alert, at the time a new medication is prescribed/ordered, that drug interaction, allergy, and formulary checking will not be performed against uncoded or free text medication(s).</p>
    </div></span>

                </td>
            </tr>

            <tr>
                <td style="padding-left: 4px;">

                    <span>CP.4.2.1#04</span>

                </td>
                <td style="padding-left: 4px;">

                    <i>dependent</i>

                    <span>MAY</span>

                </td>
                <td style="padding-left: 4px;" class="requirement">

                    <span><div><p>The system MAY provide the ability to render a notification, at the time a new uncoded medication is prescribed/ordered, that drug interaction, allergy, and formulary checking will not be performed, according to scope of practice, organizational policy, and/or jurisdictional law.</p>
    </div></span>

                </td>
            </tr>

            <tr>
                <td style="padding-left: 4px;">

                    <span>CP.4.2.1#05</span>

                </td>
                <td style="padding-left: 4px;">

                    <i>dependent</i>

                    <span>SHALL</span>

                </td>
                <td style="padding-left: 4px;" class="requirement">

                    <span><div><p>The system SHALL provide the ability to render and tag as inactive recently inactivated medications for inclusion in current medication screening according to scope of practice, organizational policy, and/or jurisdictional law.</p>
    </div></span>

                </td>
            </tr>

        </table>
    </div>
      </text>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
        <valueCode value="ehr"/>
      </extension>
      <url
           value="http://hl7.org/ehrs/uv/ehrsfmr2/Requirements/EHRSFMR2-CP.4.2.1"/>
      <version value="2.1.1-ballot"/>
      <name value="CP_4_2_1_Medication_Interaction_and_Allergy_Checking"/>
      <title
             value="CP.4.2.1 Medication Interaction and Allergy Checking (Function)"/>
      <status value="active"/>
      <date value="2025-04-04T11:04:36+11:00"/>
      <publisher value="HL7 International / Electronic Health Records"/>
      <contact>
        <telecom>
          <system value="url"/>
          <value value="http://www.hl7.org/Special/committees/ehr"/>
        </telecom>
      </contact>
      <description
                   value="Provide alerts for potential medication interactions and medication allergy reactions."/>
      <jurisdiction>
        <coding>
          <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
          <code value="001"/>
          <display value="World"/>
        </coding>
      </jurisdiction>
      <purpose
               value="Check and provide alerts at the time of medication order based upon coded, active and non-active medications for possible interactions, allergies, sensitivities, intolerances, and other adverse reactions."/>
      <statement>
        <extension
                   url="http://hl7.org/ehrs/uv/ehrsfmr2/StructureDefinition/requirements-dependent">
          <valueBoolean value="false"/>
        </extension>
        <key value="EHRSFMR2-CP.4.2.1-01"/>
        <label value="CP.4.2.1#01"/>
        <conformance value="SHALL"/>
        <conditionality value="false"/>
        <requirement
                     value="The system SHALL conform to function [CPS.4.2.1](Requirements-EHRSFMR2-CPS.4.2.1.html) (Support for Medication Interaction and Allergy Checking) to determine allergic reactions, drug-drug interactions, and other potential adverse reactions, and render alerts or notifications when new medications are ordered."/>
        <derivedFrom value="EHR-S_FM_R1.1 DC.1.7.1#16"/>
      </statement>
      <statement>
        <extension
                   url="http://hl7.org/ehrs/uv/ehrsfmr2/StructureDefinition/requirements-dependent">
          <valueBoolean value="false"/>
        </extension>
        <key value="EHRSFMR2-CP.4.2.1-02"/>
        <label value="CP.4.2.1#02"/>
        <conformance value="SHALL"/>
        <conditionality value="false"/>
        <requirement
                     value="The system SHALL conform to function [CP.1.2](Requirements-EHRSFMR2-CP.1.2.html) (Manage Allergy, Intolerance and Adverse Reaction List) to provide the ability to manage interaction and allergy checking and render alerts and notifications when new medications are ordered."/>
      </statement>
      <statement>
        <extension
                   url="http://hl7.org/ehrs/uv/ehrsfmr2/StructureDefinition/requirements-dependent">
          <valueBoolean value="false"/>
        </extension>
        <key value="EHRSFMR2-CP.4.2.1-03"/>
        <label value="CP.4.2.1#03"/>
        <conformance value="MAY"/>
        <conditionality value="false"/>
        <requirement
                     value="The system MAY provide the ability to render an alert, at the time a new medication is prescribed/ordered, that drug interaction, allergy, and formulary checking will not be performed against uncoded or free text medication(s)."/>
      </statement>
      <statement>
        <extension
                   url="http://hl7.org/ehrs/uv/ehrsfmr2/StructureDefinition/requirements-dependent">
          <valueBoolean value="true"/>
        </extension>
        <key value="EHRSFMR2-CP.4.2.1-04"/>
        <label value="CP.4.2.1#04"/>
        <conformance value="MAY"/>
        <conditionality value="false"/>
        <requirement
                     value="The system MAY provide the ability to render a notification, at the time a new uncoded medication is prescribed/ordered, that drug interaction, allergy, and formulary checking will not be performed, according to scope of practice, organizational policy, and/or jurisdictional law."/>
      </statement>
      <statement>
        <extension
                   url="http://hl7.org/ehrs/uv/ehrsfmr2/StructureDefinition/requirements-dependent">
          <valueBoolean value="true"/>
        </extension>
        <key value="EHRSFMR2-CP.4.2.1-05"/>
        <label value="CP.4.2.1#05"/>
        <conformance value="SHALL"/>
        <conditionality value="false"/>
        <requirement
                     value="The system SHALL provide the ability to render and tag as inactive recently inactivated medications for inclusion in current medication screening according to scope of practice, organizational policy, and/or jurisdictional law."/>
      </statement>
    </Requirements>