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WEEKEND MAINTENANCE: The maintenance outage is scheduled for June 22nd at 6:00am EST ending NLT Sunday, June 23rd at 11:59pm Eastern EST. The TRICARE Manuals web site may be available intermittently during this period but it's usage is not recommended.

TRICARE Policy Manual 6010.60-M, April 1, 2015
Chapter 4
Section 12.1
Mediastinum And Diaphragm
Issue Date:  August 26, 1985
Authority:  32 CFR 199.4(c)(2) and (c)(3)
Copyright:  CPT only © 2006 American Medical Association (or such other date of publication of CPT). All Rights Reserved.
39000 - 39599
The mediastinum involves the mass of tissues and organs separating the two lungs, between the sternum in front and the vertebral column behind, and from the thoracic inlet above to the diaphragm below. It contains the heart and its large vessels, the trachea, esophagus, thymus, lymph nodes, and other structures and tissues. The diaphragm involves the musculomembranous partition separating the abdominal and thoracic cavities, and serves as a major inspiratory muscle.
Services and supplies required in the diagnosis and treatment of illness or injury involving either the mediastinum or diaphragm are covered.
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