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...Unitedhealthcare medicare advantage coverage summary sleep apnea diagnosis and treatment policy number mcs approval date september instructions for use table of contents page related guidelines testing obstructive osa ncd hypoglossal nerve stimulation the supporting information history revision are covered when criteria met dme face to requirement section affordable care act aca established a encounter certain items including respiratory assist devices refer titled durable medical equipment prosthetics corrective appliances orthotics non foot nutritional therapy supplies grid covid public health emergency waivers flexibilities in response cms has updated some guidance services details fact sheet comprehensive list coronavirus https www gov about preparedness operations current emergencies accessed august is examples diagnostic include but not limited oximetry does have national determination local determinations lcds articles lcas exist compliance with these policies required where app...