This value set includes codes based on the following rules:

• Include these codes as defined in http://dicom.nema.org/resources/ontology/DCM

  Code	Display
  Margin	Margin

• Include these codes as defined in http://ncit.nci.nih.gov

  Code	Display
  C9440	Abnormality

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  300842002	Shape

• Include these codes as defined in http://www.radlex.org

  Code	Display
  RID6058	Enhancement pattern
  RID6049	Signal characteristic