The Board granted service connection for constipation as secondary to the Veteran's lumbar degenerative disc disease, but remanded claims for increased ratings in excess of 10 percent and 40 percent for the same condition.

The Board denied service connection for multiple conditions, including bilateral hearing loss and various musculoskeletal issues, as well as an initial rating in excess of 0 percent for rhinitis. However, the Board granted a 70 percent rating for posttraumatic stress disorder (PTSD).

The Veteran is granted special monthly compensation (SMC) at the (r)(2) level due to his service-connected disabilities requiring a higher level of care.

The Board granted an effective date of January 10, 2017, for the award of service connection for hoarseness, swallowing difficulties, and constipation associated with multiple sclerosis.

The Board granted an effective date of April 28, 2015 for the awards of service connection for various conditions including Parkinson's disease with weakness, tremor, and bradykinesia of the left upper extremity; right upper extremity weakness with tremor and bradykinesia (major); depressive disorder with sleep impairment; right lower extremity weakness with bradykinesia, muscle rigidity, and balance impairment; left lower extremity balance impairment with muscle rigidity; speech changes, right CN-10; speech changes, left CN-10; stooped posture, right CN-11; stooped posture, left CN-11; erectile dysfunction; constipation; loss of sense of smell; and right automatic movements, CN-7; left automatic movements, CN-7.