Medicare is establishing the following coverage for CPT/HCPCs 95811: 

Covered for ICD-9-CM indications:

278.01 MORBID OBESITY
307.41 – 307.48 TRANSIENT DISORDER OF INITIATING OR MAINTAINING SLEEP – REPETITIVE INTRUSIONS OF SLEEP
327.20 – 327.23 ORGANIC SLEEP APNEA, UNSPECIFIED – OBSTRUCTIVE SLEEP APNEA (ADULT) (PEDIATRIC)
327.26 – 327.27 SLEEP RELATED HYPOVENTILATION/HYPOXEMIA IN CONDITIONS CLASSIFIABLE ELSEWHERE – CENTRAL SLEEP APNEA IN CONDITIONS CLASSIFIED ELSEWHERE
327.29 OTHER ORGANIC SLEEP APNEA
327.30 – 327.37 CIRCADIAN RHYTHM SLEEP DISORDER, UNSPECIFIED – CIRCADIAN RHYTHM SLEEP DISORDER IN CONDITIONS CLASSIFIED ELSEWHERE
327.39 OTHER CIRCADIAN RHYTHM SLEEP DISORDER
327.40 – 327.44 ORGANIC PARASOMNIA, UNSPECIFIED – PARASOMNIA IN CONDITIONS CLASSIFIED ELSEWHERE
327.49 OTHER ORGANIC PARASOMNIA
327.8 OTHER ORGANIC SLEEP DISORDERS
347.00 – 347.01 NARCOLEPSY, WITHOUT CATAPLEXY – NARCOLEPSY, WITH CATAPLEXY
347.10 – 347.11 NARCOLEPSY IN CONDITIONS CLASSIFIED ELSEWHERE, WITHOUT CATAPLEXY – NARCOLEPSY IN CONDITIONS CLASSIFIED ELSEWHERE, WITH CATAPLEXY
518.83 CHRONIC RESPIRATORY FAILURE
780.51 INSOMNIA WITH SLEEP APNEA, UNSPECIFIED
780.53 HYPERSOMNIA WITH SLEEP APNEA, UNSPECIFIED
780.57 – 780.58 UNSPECIFIED SLEEP APNEA – SLEEP RELATED MOVEMENT DISORDER, UNSPECIFIED