HL7 v2.9.1 Vocabulary
0.2.0 - ci-build

HL7 v2.9.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v291/ and changes regularly. See the Directory of published versions

## : Service Request Relationship (2.9.1 - 1.0.1) - XML Representation

Active as of 2026-03-13

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    <CodeSystem xmlns="http://hl7.org/fhir">
      <id value="serviceRequestRelationship"/>
      <text>
        <status value="generated"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><ul><li>Include all codes defined in <a href="CodeSystem-serviceRequestRelationship.html"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/serviceRequestRelationship</code></a></li></ul></div>
      </text>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated">
        <valueString value="2.9.1"/>
      </extension>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory">
        <valueString value="generate correct history somehow"/>
      </extension>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo">
        <valueString value="0506"/>
      </extension>
      <url
           value="http://terminology.hl7.org/v2plusvocab/CodeSystem/serviceRequestRelationship"/>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="urn:oid:2.16.840.1.113883.18.330"/>
      </identifier>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0506"/>
      </identifier>
      <version value="1.0.1"/>
      <name value="ServiceRequestRelationship"/>
      <title value="Service Request Relationship (2.9.1 - 1.0.1)"/>
      <status value="active"/>
      <experimental value="true"/>
      <date value="2026-03-13T11:04:57+00:00"/>
      <publisher value="HL7/FO"/>
      <contact>
        <name value="HL7/FO"/>
        <telecom>
          <system value="url"/>
          <value value="http://www.hl7.org"/>
        </telecom>
      </contact>
      <description
                   value="HL7-defined code system of concepts used to specify an additional or alternate relationship between this service request and other service requests.  Used in the Timing/Quantity Relationship (TQ2) segment in HL7 Version 2.x messaging."/>
      <copyright value="HL7 Inc., 2026"/>
      <caseSensitive value="true"/>
      <compositional value="false"/>
      <content value="complete"/>
      <property>
        <code value="versionIntroduced"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced"/>
        <description value="version when was this code introduced"/>
        <type value="string"/>
      </property>
      <property>
        <code value="versionDeprecated"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated"/>
        <description value="version when was this code deprecated"/>
        <type value="string"/>
      </property>
      <property>
        <code value="status"/>
        <uri value="http://hl7.org/fhir/concept-properties#status"/>
        <description
                     value="A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired"/>
        <type value="code"/>
      </property>
      <property>
        <code value="comment"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment"/>
        <description
                     value="A string that provides additional detail pertinent to the use or understanding of the concept"/>
        <type value="string"/>
      </property>
      <property>
        <code value="usage"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage"/>
        <description value="usage notes for this code"/>
        <type value="string"/>
      </property>
      <property>
        <code value="modified"/>
        <uri
             value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified"/>
        <description value="date of last modification"/>
        <type value="dateTime"/>
      </property>
      <concept id="5523">
        <code value="C"/>
        <display value="Compound"/>
        <definition value="Compound"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="A compound is an extempo order which may be made up of multiple drugs.  For example, many hospitals have a standard item called &quot;Magic Mouthwash&quot;.  The item is ordered that way by the physician. The extempo items will contain multiple products, such as Maalox, Benadryl, Xylocaine, etc.  They will all be mixed together and will be dispensed in a single container."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.5"/>
        </property>
      </concept>
      <concept id="5525">
        <code value="E"/>
        <display value="Exclusive"/>
        <definition value="Exclusive"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="An exclusive order is an order where only one of the multiple items should be administered at any one dosage time.  The nurse may chose between the alternatives, but should only give ONE of them.  An example would be: Phenergan 25 mg PO, IM or R q6h prn (orally, intramuscularly, or rectally every 6 hours as needed)."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.5"/>
        </property>
      </concept>
      <concept id="5522">
        <code value="N"/>
        <display value="Nurse prerogative"/>
        <definition value="Nurse prerogative"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="Where a set of two or more orders exist and the Nurse, or other caregiver, has the prerogative to choose which order will be administered at a particular point in time.  For example,
    	Milk of Magnesia PO 30 ml qhs (at bedtime)
    	Dulcolax Supp R @ hs prn
    	Colace 100 mg capsule PO bid
    The nurse would be administering MOM, but may add the Colace and may also give the Dulcolax Supp as needed to promote and maintain regularity."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.5"/>
        </property>
      </concept>
      <concept id="5526">
        <code value="S"/>
        <display value="Simultaneous"/>
        <definition value="Simultaneous"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="A simultaneous order is 2 or more drugs which are ordered to be given at the same time.  A common example of this would be Demerol and Phenergan (Phenergan is given with the Demerol to control the nausea that Demerol can cause).  The order could be: Demerol 50 mg IM with Phenergan 25 mg IM q4h prn (every 4 hours as needed)."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.5"/>
        </property>
      </concept>
      <concept id="5524">
        <code value="T"/>
        <display value="Tapering"/>
        <definition value="Tapering"/>
        <property>
          <code value="comment"/>
          <valueString
                       value="A tapering order is one in which the same drug is used, but it has a declining dosage over a number of days.
    For example, Decadron 0.5 mg is often ordered this way.  The order would look like this:
    	Decadron 0.5 mg qid (four times a day) for 2 days, then
    	Decadron 0.5 mg tid (three times a day) for 2 days, then
    	Decadron 0.5 mg bid (twice a day) for 2 days, then
    	Decadron 0.5 mg qd (daily) for 2 days, then stop."/>
        </property>
        <property>
          <code value="modified"/>
          <valueDateTime value="2015-07-13"/>
        </property>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.5"/>
        </property>
      </concept>
    </CodeSystem>