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
  112095	Hiatus	A gap or passage through an anatomical part or organ; especially: a gap through which another part or organ passes.
  112090	Azygoesophageal recess interface	A space in the right side of the mediastinum into which the medial edge of the right lower lobe extends [Fraser and Pare].
  112091	Paraspinal line	A vertically oriented interface usually seen in a frontal chest radiograph to the left of the thoracic vertebral column [Fraser and Pare].
  112092	Posterior tracheal stripe	A vertically oriented linear opacity ranging in width from 2-5 mm, extending from the thoracic inlet to the bifurcation of the trachea, and visible only on lateral radiographs of the chest [Fraser and Pare].
  112093	Right tracheal stripe	A vertically oriented linear opacity approximately 2-3 mm wide extending from the thoracic inlet to the right tracheobronchial angle [Fraser and Pare].
  112094	Stripe	A longitudinal composite opacity measuring 2-5 mm in width; acceptable when limited to anatomic structures within the mediastinum [Fraser and Pare].

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

  Code	Display
  39057004	Pulmonary valve
  120576005	Fascial layer
  1732005	Thoracic Duct
  368536000	Axillary Fascia
  28700002	Carina
  51345006	Carotid Body
  46030003	Tricuspid Valve
  80891009	Heart
  9875009	Thymus Gland
  70142008	Atrial Septal Defect
  59441001	Lymph node
  50016007	Costal Cartilage
  21814001	Ventricle
  31764008	Trapezius muscle
  32849002	Esophagus
  75245000	Left main bronchus
  70074004	Right main bronchus
  69748006	Thyroid
  2160002	Ligamentum arteriosum
  44567001	Trachea
  91134007	Mitral Valve
  280062008	Esophageal Hiatus