<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="imagingselection-2dgraphictype"/>
  <meta>
    <lastUpdated value="2026-03-17T09:59:53.445+11:00"/>
  </meta>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">
      <p class="res-header-id">
        <b>Generated Narrative: CodeSystem imagingselection-2dgraphictype</b>
      </p>
      <a name="imagingselection-2dgraphictype"> </a>
      <a name="hcimagingselection-2dgraphictype"> </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: 2021-01-05T10:01:24.148+11:00</p>
      </div>
      <p>This case-sensitive code system 
        <code>http://hl7.org/fhir/imagingselection-2dgraphictype</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">point
            <a name="imagingselection-2dgraphictype-point"> </a>
          </td>
          <td>POINT</td>
          <td>A single location denoted by a single (x,y) pair.</td>
        </tr>
        <tr>
          <td style="white-space:nowrap">polyline
            <a name="imagingselection-2dgraphictype-polyline"> </a>
          </td>
          <td>POLYLINE</td>
          <td>A series of connected line segments with ordered vertices denoted by (x,y) triplets; if the first and last vertices are the same it is a closed polygon.</td>
        </tr>
        <tr>
          <td style="white-space:nowrap">multipoint
            <a name="imagingselection-2dgraphictype-multipoint"> </a>
          </td>
          <td>MULTIPOINT</td>
          <td>Multiple pixels each denoted by a (x,y) pair.</td>
        </tr>
        <tr>
          <td style="white-space:nowrap">circle
            <a name="imagingselection-2dgraphictype-circle"> </a>
          </td>
          <td>CIRCLE</td>
          <td>Two points shall be present; the first point is to be interpreted as the center and the second point as a point on the circumference of a circle, some form of implementation dependent representation of which is to be drawn.</td>
        </tr>
        <tr>
          <td style="white-space:nowrap">ellipse
            <a name="imagingselection-2dgraphictype-ellipse"> </a>
          </td>
          <td>ELLIPSE</td>
          <td>An ellipse defined by four (x,y) pairs, the first two pairs specifying the endpoints of the major axis and the second two pairs specifying the endpoints of the minor axis.</td>
        </tr>
      </table>
    </div>
  </text>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="ii"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="6"/>
  </extension>
  <url value="http://hl7.org/fhir/imagingselection-2dgraphictype"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.1984"/>
  </identifier>
  <version value="6.0.0-ballot4"/>
  <name value="ImagingSelection2DGraphicType"/>
  <title value="Imaging Selection 2D Graphic Type"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2024-12-30"/>
  <publisher value="HL7 (FHIR Project)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="fhir@lists.hl7.org"/>
    </telecom>
  </contact>
  <description value="The type of coordinates describing a 2D image region."/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <valueSet value="http://hl7.org/fhir/ValueSet/imagingselection-2dgraphictype"/>
  <content value="complete"/>
  <concept>
    <code value="point"/>
    <display value="POINT"/>
    <definition value="A single location denoted by a single (x,y) pair."/>
  </concept>
  <concept>
    <code value="polyline"/>
    <display value="POLYLINE"/>
    <definition value="A series of connected line segments with ordered vertices denoted by (x,y) triplets; if the first and last vertices are the same it is a closed polygon."/>
  </concept>
  <concept>
    <code value="multipoint"/>
    <display value="MULTIPOINT"/>
    <definition value="Multiple pixels each denoted by a (x,y) pair."/>
  </concept>
  <concept>
    <code value="circle"/>
    <display value="CIRCLE"/>
    <definition value="Two points shall be present; the first point is to be interpreted as the center and the second point as a point on the circumference of a circle, some form of implementation dependent representation of which is to be drawn."/>
  </concept>
  <concept>
    <code value="ellipse"/>
    <display value="ELLIPSE"/>
    <definition value="An ellipse defined by four (x,y) pairs, the first two pairs specifying the endpoints of the major axis and the second two pairs specifying the endpoints of the minor axis."/>
  </concept>
</CodeSystem>