HL7 Terminology (THO)
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: Diagnosis Type Codes - XML Representation

Active as of 2025-06-13 Maturity Level: 1

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="diagnosistype"/>
  <meta>
    <lastUpdated value="2025-05-25T00:00:00+00:00"/>
    <profile
             value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/>
  </meta>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem diagnosistype</b></p><a name="diagnosistype"> </a><a name="hcdiagnosistype"> </a><a name="diagnosistype-en-US"> </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">Last updated: 2025-05-25 00:00:00+0000</p><p style="margin-bottom: 0px">Profile: <a href="http://hl7.org/fhir/R5/shareablecodesystem.html">Shareable CodeSystem</a></p></div><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/diagnosistype</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></tr><tr><td style="white-space:nowrap">admitting<a name="diagnosistype-admitting"> </a></td><td>Admitting Diagnosis</td><td>The diagnosis given as the reason why the patient was admitted to the hospital.</td></tr><tr><td style="white-space:nowrap">clinical<a name="diagnosistype-clinical"> </a></td><td>Clinical Diagnosis</td><td>A diagnosis made on the basis of medical signs and patient-reported symptoms, rather than diagnostic tests.</td></tr><tr><td style="white-space:nowrap">differential<a name="diagnosistype-differential"> </a></td><td>Differential Diagnosis</td><td>One of a set of the possible diagnoses that could be connected to the signs, symptoms, and lab findings.</td></tr><tr><td style="white-space:nowrap">discharge<a name="diagnosistype-discharge"> </a></td><td>Discharge Diagnosis</td><td>The diagnosis given when the patient is discharged from the hospital.</td></tr><tr><td style="white-space:nowrap">laboratory<a name="diagnosistype-laboratory"> </a></td><td>Laboratory Diagnosis</td><td>A diagnosis based significantly on laboratory reports or test results, rather than the physical examination of the patient.</td></tr><tr><td style="white-space:nowrap">nursing<a name="diagnosistype-nursing"> </a></td><td>Nursing Diagnosis</td><td>A diagnosis which identifies people's responses to situations in their lives, such as a readiness to change or a willingness to accept assistance.</td></tr><tr><td style="white-space:nowrap">prenatal<a name="diagnosistype-prenatal"> </a></td><td>Prenatal Diagnosis</td><td>A diagnosis determined prior to birth.</td></tr><tr><td style="white-space:nowrap">principal<a name="diagnosistype-principal"> </a></td><td>Principal Diagnosis</td><td>The single medical diagnosis that is most relevant to the patient's chief complaint or need for treatment.</td></tr><tr><td style="white-space:nowrap">radiology<a name="diagnosistype-radiology"> </a></td><td>Radiology Diagnosis</td><td>A diagnosis based primarily on the results from medical imaging studies.</td></tr><tr><td style="white-space:nowrap">remote<a name="diagnosistype-remote"> </a></td><td>Remote Diagnosis</td><td>A diagnosis determined using telemedicine techniques.</td></tr><tr><td style="white-space:nowrap">retrospective<a name="diagnosistype-retrospective"> </a></td><td>Retrospective Diagnosis</td><td>The labeling of an illness in a specific historical event using modern knowledge, methods and disease classifications.</td></tr><tr><td style="white-space:nowrap">secondary<a name="diagnosistype-secondary"> </a></td><td>Secondary Diagnosis</td><td>A condition or complaint either coexisting with the principal diagnosis or arising during a service event or episode.</td></tr><tr><td style="white-space:nowrap">externalcauseofinjury<a name="diagnosistype-externalcauseofinjury"> </a></td><td>External Cause of Injury</td><td>A condition or diagnosis caused by a factor outside the body that directly results in a physical injury, poisoning, or other adverse health condition.</td></tr><tr><td style="white-space:nowrap">patientreported<a name="diagnosistype-patientreported"> </a></td><td>Patient Reported Diagnosis</td><td>A condition or diagnosis reported by the patient.</td></tr><tr><td style="white-space:nowrap">patientreasonforvisit<a name="diagnosistype-patientreasonforvisit"> </a></td><td>Patient Reason For Visit</td><td>Identifies the patient's reason for a visit.</td></tr></table></div>
  </text>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fm"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="1"/>
  </extension>
  <url value="http://terminology.hl7.org/CodeSystem/diagnosistype"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.5.174"/>
  </identifier>
  <version value="1.0.0"/>
  <name value="DiagnosisTypeCodes"/>
  <title value="Diagnosis Type Codes"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2025-06-13T04:35:21+00:00"/>
  <publisher value="Health Level Seven International"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="hq@HL7.org"/>
    </telecom>
  </contact>
  <description value="This value set includes Diagnosis Type codes."/>
  <copyright
             value="This material derives from the HL7 Terminology (THO). THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license"/>
  <caseSensitive value="true"/>
  <valueSet value="http://terminology.hl7.org/ValueSet/diagnosistype"/>
  <content value="complete"/>
  <concept>
    <code value="admitting"/>
    <display value="Admitting Diagnosis"/>
    <definition
                value="The diagnosis given as the reason why the patient was admitted to the hospital."/>
  </concept>
  <concept>
    <code value="clinical"/>
    <display value="Clinical Diagnosis"/>
    <definition
                value="A diagnosis made on the basis of medical signs and patient-reported symptoms, rather than diagnostic tests."/>
  </concept>
  <concept>
    <code value="differential"/>
    <display value="Differential Diagnosis"/>
    <definition
                value="One of a set of the possible diagnoses that could be connected to the signs, symptoms, and lab findings."/>
  </concept>
  <concept>
    <code value="discharge"/>
    <display value="Discharge Diagnosis"/>
    <definition
                value="The diagnosis given when the patient is discharged from the hospital."/>
  </concept>
  <concept>
    <code value="laboratory"/>
    <display value="Laboratory Diagnosis"/>
    <definition
                value="A diagnosis based significantly on laboratory reports or test results, rather than the physical examination of the patient."/>
  </concept>
  <concept>
    <code value="nursing"/>
    <display value="Nursing Diagnosis"/>
    <definition
                value="A diagnosis which identifies people's responses to situations in their lives, such as a readiness to change or a willingness to accept assistance."/>
  </concept>
  <concept>
    <code value="prenatal"/>
    <display value="Prenatal Diagnosis"/>
    <definition value="A diagnosis determined prior to birth."/>
  </concept>
  <concept>
    <code value="principal"/>
    <display value="Principal Diagnosis"/>
    <definition
                value="The single medical diagnosis that is most relevant to the patient's chief complaint or need for treatment."/>
  </concept>
  <concept>
    <code value="radiology"/>
    <display value="Radiology Diagnosis"/>
    <definition
                value="A diagnosis based primarily on the results from medical imaging studies."/>
  </concept>
  <concept>
    <code value="remote"/>
    <display value="Remote Diagnosis"/>
    <definition
                value="A diagnosis determined using telemedicine techniques."/>
  </concept>
  <concept>
    <code value="retrospective"/>
    <display value="Retrospective Diagnosis"/>
    <definition
                value="The labeling of an illness in a specific historical event using modern knowledge, methods and disease classifications."/>
  </concept>
  <concept>
    <code value="secondary"/>
    <display value="Secondary Diagnosis"/>
    <definition
                value="A condition or complaint either coexisting with the principal diagnosis or arising during a service event or episode."/>
  </concept>
  <concept>
    <code value="externalcauseofinjury"/>
    <display value="External Cause of Injury"/>
    <definition
                value="A condition or diagnosis caused by a factor outside the body that directly results in a physical injury, poisoning, or other adverse health condition."/>
  </concept>
  <concept>
    <code value="patientreported"/>
    <display value="Patient Reported Diagnosis"/>
    <definition value="A condition or diagnosis reported by the patient."/>
  </concept>
  <concept>
    <code value="patientreasonforvisit"/>
    <display value="Patient Reason For Visit"/>
    <definition value="Identifies the patient's reason for a visit."/>
  </concept>
</CodeSystem>