M65.8 - Other synovitis and tenosynovitis
M65.85 - Other synovitis and tenosynovitis, thigh
M65.851 - Other synovitis and tenosynovitis, right thigh
M65.852 - Other synovitis and tenosynovitis, left thigh
M65.859 - Other synovitis and tenosynovitis, unspecified thigh