---
type: "codesystem"
title: "Imaging Selection 2D Graphic Type"
codesystem: "imagingselection-2dgraphictype"
---
# Imaging Selection 2D Graphic Type

- **Official URL**: http://hl7.org/fhir/imagingselection-2dgraphictype
- **Version**: 6.0.0
- **Status**: active
- **Name**: ImagingSelection2DGraphicType
- **Title**: Imaging Selection 2D Graphic Type
- **Publisher**: HL7 (FHIR Project)
- **Description**: The type of coordinates describing a 2D image region.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| point | POINT | A single location denoted by a single (x,y) pair. |
| polyline | POLYLINE | 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. |
| multipoint | MULTIPOINT | Multiple pixels each denoted by a (x,y) pair. |
| circle | CIRCLE | 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. |
| ellipse | ELLIPSE | 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. |

## CodeSystem XML



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

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="imagingselection-2dgraphictype"/>
  <meta>
    <lastUpdated value="2021-01-05T10:01:24.148+11:00"/>
  </meta>
  <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"/>
  <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."/>
  <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>
```