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Mammography Density CodeSystem - XML Representation

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="MGDensityCS"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><h2>Mammography Density CodeSystem</h2><div><p>Mammography density code system.</p>
</div><p>This code system http://hl7.org/fhir/us/breast-radiology/CodeSystem/MGDensityCS 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">CentralLucent<a name="MGDensityCS-CentralLucent"> </a></td><td>Central lucent</td><td>These are round or oval calcifications that range 
from under 1 mm to over a centimeter. 
They are the result of fat necrosis, calcified debris 
in ducts, and occasional fibroadenomas. 
[https://radiologyassistant.nl/breast/breast-calcifications-differential-diagnosis#benign-calcifications-lucent-centered] 

Valid for the following modalities: MG.</td></tr><tr><td style="white-space:nowrap">EqualDensity<a name="MGDensityCS-EqualDensity"> </a></td><td>Equal density</td><td>(historically, &quot;isodense&quot;) 
X-ray attenuation of the mass is the same as the 
expected attenuation of an equal volume of 

fibroglandular breast tissue. 
[Breast Imaging Reporting and Data System—Ultrasound, Second Edition] 

Valid for the following modalities: MG.</td></tr><tr><td style="white-space:nowrap">FatContaining<a name="MGDensityCS-FatContaining"> </a></td><td>Fat containing</td><td>This includes all masses containing fat, such as 
oil cyst, lipoma or galactocele, as well as mixed 
density masses such as hamartoma. 
A fat-containing mass will almost always represent 
a 

benign mass. 
[Breast Imaging Reporting and Data System—Ultrasound, Second Edition] 

Valid for the following modalities: MG.</td></tr><tr><td style="white-space:nowrap">HighDensity<a name="MGDensityCS-HighDensity"> </a></td><td>High density</td><td>the breast tissue may be called dense if you have 
a lot of fibrous or glandular 
tissue and not much fat in the breasts. 
Having dense breast tissue is common. 
Some women have more dense breast tissue than others. 
[https://www.cancer.org/cancer/breast-cancer/screening-tests-and-early-detection/mammograms/breast-density-and-the-mammogram-report.html] 

Valid for the following modalities: MG.</td></tr><tr><td style="white-space:nowrap">LowDensity<a name="MGDensityCS-LowDensity"> </a></td><td>Low density</td><td>X-ray attenuation of the mass is less than the expected 
attenuation of an equal volume of 
fibroglandular breast tissue. 
A low density mass may be a group of microcysts. 
If such a finding 
is identified at mammography, it may very well not 
be malignant but appropriately may 

be worked up. 
[Breast Imaging Reporting and Data System—Ultrasound, Second Edition] 

Valid for the following modalities: MG.</td></tr></table></div>
  </text>
  <url value="http://hl7.org/fhir/us/breast-radiology/CodeSystem/MGDensityCS"/>
  <version value="0.2.0"/>
  <name value="MGDensityCS"/>
  <title value="Mammography Density CodeSystem"/>
  <status value="draft"/>
  <date value="2019-11-01T00:00:00+00:00"/>
  <publisher value="Hl7 - Clinical Interoperability Council"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/Special/committees/cic"/>
    </telecom>
  </contact>
  <description value="Mammography density code system."/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <count value="5"/>
  <concept>
    <code value="CentralLucent"/>
    <display value="Central lucent"/>
    <definition
                value="These are round or oval calcifications that range 
from under 1 mm to over a centimeter. 
They are the result of fat necrosis, calcified debris 
in ducts, and occasional fibroadenomas. 
[https://radiologyassistant.nl/breast/breast-calcifications-differential-diagnosis#benign-calcifications-lucent-centered] 

Valid for the following modalities: MG."/>
  </concept>
  <concept>
    <code value="EqualDensity"/>
    <display value="Equal density"/>
    <definition
                value="(historically, &quot;isodense&quot;) 
X-ray attenuation of the mass is the same as the 
expected attenuation of an equal volume of 

fibroglandular breast tissue. 
[Breast Imaging Reporting and Data System—Ultrasound, Second Edition] 

Valid for the following modalities: MG."/>
  </concept>
  <concept>
    <code value="FatContaining"/>
    <display value="Fat containing"/>
    <definition
                value="This includes all masses containing fat, such as 
oil cyst, lipoma or galactocele, as well as mixed 
density masses such as hamartoma. 
A fat-containing mass will almost always represent 
a 

benign mass. 
[Breast Imaging Reporting and Data System—Ultrasound, Second Edition] 

Valid for the following modalities: MG."/>
  </concept>
  <concept>
    <code value="HighDensity"/>
    <display value="High density"/>
    <definition
                value="the breast tissue may be called dense if you have 
a lot of fibrous or glandular 
tissue and not much fat in the breasts. 
Having dense breast tissue is common. 
Some women have more dense breast tissue than others. 
[https://www.cancer.org/cancer/breast-cancer/screening-tests-and-early-detection/mammograms/breast-density-and-the-mammogram-report.html] 

Valid for the following modalities: MG."/>
  </concept>
  <concept>
    <code value="LowDensity"/>
    <display value="Low density"/>
    <definition
                value="X-ray attenuation of the mass is less than the expected 
attenuation of an equal volume of 
fibroglandular breast tissue. 
A low density mass may be a group of microcysts. 
If such a finding 
is identified at mammography, it may very well not 
be malignant but appropriately may 

be worked up. 
[Breast Imaging Reporting and Data System—Ultrasound, Second Edition] 

Valid for the following modalities: MG."/>
  </concept>
</CodeSystem>