HL7 v2.3.1 Vocabulary
0.1.0 - ci-build

HL7 v2.3.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 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.v231/ and changes regularly. See the Directory of published versions

## : Occurrence Code (2.3.1 - 1.0.0) - XML Representation

Active as of 2026-01-27

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    <CodeSystem xmlns="http://hl7.org/fhir">
      <id value="nubc-OccurrenceCode-cs"/>
      <text>
        <status value="generated"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><ul><li>Include all codes defined in <a href="CodeSystem-nubc-OccurrenceCode-cs.html"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/nubc-OccurrenceCode-cs</code></a></li></ul></div>
      </text>
      <extension
                 url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated">
        <valueString value="2.3.1"/>
      </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="0350"/>
      </extension>
      <url
           value="http://terminology.hl7.org/v2plusvocab/CodeSystem/nubc-OccurrenceCode-cs"/>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="urn:oid:2.16.840.1.113883.6.301.7"/>
      </identifier>
      <version value="1.0.0"/>
      <name value="Nubc-OccurrenceCode-cs"/>
      <title value="Occurrence Code (2.3.1 - 1.0.0)"/>
      <status value="active"/>
      <experimental value="true"/>
      <date value="2026-01-27T19:22:40+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="National Uniform Billing Committee (NUBC) UB-04 Data Specifications Manual, UB form locator 31 - 34, Occurrence Codes and Amounts - code and associated date defining a significant event relating to the bill that may affect payer processing the claim. The UB-04 Data Specifications Manual with the codes is available by subscription from NUBC at http://www.nubc.org/become.html.  Used in HL7 Version 2.x messaging in the OCD segment. Updated by NUBC annually; see the coding instructions for more detail."/>
      <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>
        <code value="01"/>
        <display value="Auto accident"/>
        <definition value="Auto accident"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="02"/>
        <display
                 value="No fault insurance involved-including auto accident/other"/>
        <definition
                    value="No fault insurance involved-including auto accident/other"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="03"/>
        <display value="Accident/tort liability"/>
        <definition value="Accident/tort liability"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="04"/>
        <display value="Accident/employment related"/>
        <definition value="Accident/employment related"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="05"/>
        <display value="Other accident"/>
        <definition value="Other accident"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="06"/>
        <display value="Crime victim"/>
        <definition value="Crime victim"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="09"/>
        <display value="Start of infertility treatment cycle"/>
        <definition value="Start of infertility treatment cycle"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="10"/>
        <display value="Last menstrual period"/>
        <definition value="Last menstrual period"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="11"/>
        <display value="Onset of symptoms/illness"/>
        <definition value="Onset of symptoms/illness"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="12"/>
        <display value="Date of onset for a chronically dependent individual"/>
        <definition value="Date of onset for a chronically dependent individual"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="17"/>
        <display
                 value="Date outpatient occupational therapy plan established or last reviewed"/>
        <definition
                    value="Date outpatient occupational therapy plan established or last reviewed"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="18"/>
        <display value="Date of retirement patient/beneficiary"/>
        <definition value="Date of retirement patient/beneficiary"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="19"/>
        <display value="Date of retirement spouse"/>
        <definition value="Date of retirement spouse"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="20"/>
        <display value="Guarantee of payment began"/>
        <definition value="Guarantee of payment began"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="21"/>
        <display value="UR notice received"/>
        <definition value="UR notice received"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="22"/>
        <display value="Date active care ended"/>
        <definition value="Date active care ended"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="24"/>
        <display value="Date insurance denied"/>
        <definition value="Date insurance denied"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="25"/>
        <display value="Date benefits terminated by primary payor"/>
        <definition value="Date benefits terminated by primary payor"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="26"/>
        <display value="Date SNF bed available"/>
        <definition value="Date SNF bed available"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="27"/>
        <display value="Date home health plan established"/>
        <definition value="Date home health plan established"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="28"/>
        <display value="Spouse's date of birth"/>
        <definition value="Spouse's date of birth"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="29"/>
        <display
                 value="Date outpatient physical therapy plan established or last reviewed"/>
        <definition
                    value="Date outpatient physical therapy plan established or last reviewed"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="30"/>
        <display
                 value="Date outpatient speech pathology plan established or last reviewed"/>
        <definition
                    value="Date outpatient speech pathology plan established or last reviewed"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="31"/>
        <display
                 value="Date beneficiary notified of intent to bill (accommodations)"/>
        <definition
                    value="Date beneficiary notified of intent to bill (accommodations)"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="32"/>
        <display
                 value="Date beneficiary notified of intent to bill (procedures or treatments)"/>
        <definition
                    value="Date beneficiary notified of intent to bill (procedures or treatments)"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="33"/>
        <display
                 value="First day of the Medicare coordination period for ESRD beneficiaries covered by EGHP"/>
        <definition
                    value="First day of the Medicare coordination period for ESRD beneficiaries covered by EGHP"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="34"/>
        <display value="Date of election of extended care facilities"/>
        <definition value="Date of election of extended care facilities"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="35"/>
        <display value="Date treatment started for P.T."/>
        <definition value="Date treatment started for P.T."/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="36"/>
        <display
                 value="Date of inpatient hospital discharge for covered transplant patients"/>
        <definition
                    value="Date of inpatient hospital discharge for covered transplant patients"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="37"/>
        <display
                 value="Date of inpatient hospital discharge for non-covered transplant patient"/>
        <definition
                    value="Date of inpatient hospital discharge for non-covered transplant patient"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="40"/>
        <display value="Scheduled date of admission"/>
        <definition value="Scheduled date of admission"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="41"/>
        <display value="Date of first test for pre-admission testing"/>
        <definition value="Date of first test for pre-admission testing"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="42"/>
        <display value="Date of discharge"/>
        <definition value="Date of discharge"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="43"/>
        <display value="Scheduled date of canceled surgery"/>
        <definition value="Scheduled date of canceled surgery"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="44"/>
        <display value="Date treatment started for O.T."/>
        <definition value="Date treatment started for O.T."/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="45"/>
        <display value="Date treatment started for S.T."/>
        <definition value="Date treatment started for S.T."/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="46"/>
        <display value="Date treatment started for cardiac rehab."/>
        <definition value="Date treatment started for cardiac rehab."/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="47"/>
        <display value="Payer codes"/>
        <definition value="Payer codes"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="48"/>
        <display value="Payer codes"/>
        <definition value="Payer codes"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="49"/>
        <display value="Payer codes"/>
        <definition value="Payer codes"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="50"/>
        <display value="Date lien released"/>
        <definition value="Date lien released"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="51"/>
        <display value="Date treatment started for psychiatric care"/>
        <definition value="Date treatment started for psychiatric care"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="70"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="71"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="72"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="73"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="74"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="75"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="76"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="77"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="78"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="79"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="80"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="81"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="82"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="83"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="84"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="85"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="86"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="87"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="88"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="89"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="90"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="91"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="92"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="93"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="94"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="95"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="96"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="97"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="98"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="99"/>
        <display value="Occurrence span codes and dates"/>
        <definition value="Occurrence span codes and dates"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="A1"/>
        <display value="Birthdate - insured A"/>
        <definition value="Birthdate - insured A"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="A2"/>
        <display value="Effective date - insured A policy"/>
        <definition value="Effective date - insured A policy"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
      <concept>
        <code value="A3"/>
        <display value="Benefits exhausted payer A"/>
        <definition value="Benefits exhausted payer A"/>
        <property>
          <code value="versionIntroduced"/>
          <valueString value="2.3.1"/>
        </property>
      </concept>
    </CodeSystem>