ICD-10-CM > M00-M99 > M65-M67 > M65 > M65.8 M65.8 Other synovitis and tenosynovitis Non-Billable/Non-Specific Codes M65.80Other synovitis and tenosynovitis, unspecified siteM65.81Other synovitis and tenosynovitis, shoulderM65.811Other synovitis and tenosynovitis, right shoulderM65.812Other synovitis and tenosynovitis, left shoulderM65.819Other synovitis and tenosynovitis, unspecified shoulderM65.82Other synovitis and tenosynovitis, upper armM65.821Other synovitis and tenosynovitis, right upper armM65.822Other synovitis and tenosynovitis, left upper armM65.829Other synovitis and tenosynovitis, unspecified upper armM65.83Other synovitis and tenosynovitis, forearmM65.831Other synovitis and tenosynovitis, right forearmM65.832Other synovitis and tenosynovitis, left forearmM65.839Other synovitis and tenosynovitis, unspecified forearmM65.84Other synovitis and tenosynovitis, handM65.841Other synovitis and tenosynovitis, right handM65.842Other synovitis and tenosynovitis, left handM65.849Other synovitis and tenosynovitis, unspecified handM65.85Other synovitis and tenosynovitis, thighM65.851Other synovitis and tenosynovitis, right thighM65.852Other synovitis and tenosynovitis, left thighM65.859Other synovitis and tenosynovitis, unspecified thighM65.86Other synovitis and tenosynovitis, lower legM65.861Other synovitis and tenosynovitis, right lower legM65.862Other synovitis and tenosynovitis, left lower legM65.869Other synovitis and tenosynovitis, unspecified lower legM65.87Other synovitis and tenosynovitis, ankle and footM65.871Other synovitis and tenosynovitis, right ankle and footM65.872Other synovitis and tenosynovitis, left ankle and footM65.879Other synovitis and tenosynovitis, unspecified ankle and footM65.88Other synovitis and tenosynovitis, other siteM65.89Other synovitis and tenosynovitis, multiple sites