Certainly officers in the military are subject to pay reductions under the UCMJ. If they aren’t subject to grade reductions, I wonder why.
My roommate in Germany was an E-4, and a pothead. He got busted on his first urinalysis and was reduced to E-2, served 3 months extra duty and 3 months confinement to barracks as a result of an Article 15.
When he got caught again, he was stripped of his remaining rank and sentenced to Mannheim (a confinement facility in Germany) for 8 months, four months served, and given a BCD (bad conduct discharge).
Don’t smoke pot in the military!