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	Definition
  112143	Air	Inspired atmospheric gas. The word is sometimes used to describe gas within the body regardless of its composition or site [Fraser and Pare].
  112145	Calcium	Material having X-Ray attenuation properties similar to calcium, a silver-white bivalent metallic element occurring in plants and animals.

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

  Code	Display
  87784001	Soft tissue
  19227008	Foreign material (iodized oil, mercury,talc)
  256674009	Fat