| M65922 | Unspecified synovitis and tenosynovitis, left upper arm |
| M65929 | Unspecified synovitis and tenosynovitis, unspecified upper arm |
| M6593 | Unspecified synovitis and tenosynovitis, forearm |
| M65931 | Unspecified synovitis and tenosynovitis, right forearm |
| M65932 | Unspecified synovitis and tenosynovitis, left forearm |
| M65939 | Unspecified synovitis and tenosynovitis, unspecified forearm Unspecified synovitis and tenosynovitis, unspecified forearm |
| M6594 | Unspecified synovitis and tenosynovitis, hand |
| M65941 | Unspecified synovitis and tenosynovitis, right hand |
| M65942 | Unspecified synovitis and tenosynovitis, left hand |
| M65949 | Unspecified synovitis and tenosynovitis, unspecified hand |
| M6595 | Unspecified synovitis and tenosynovitis, thigh |
| M65951 | Unspecified synovitis and tenosynovitis, right thigh |
| M65952 | Unspecified synovitis and tenosynovitis, left thigh |
| M65959 | Unspecified synovitis and tenosynovitis, unspecified thigh |
| M6596 | Unspecified synovitis and tenosynovitis, lower leg |
| M65961 | Unspecified synovitis and tenosynovitis, right lower leg |
| M65962 | Unspecified synovitis and tenosynovitis, left lower leg |
| M65969 | Unspecified synovitis and tenosynovitis, unspecified lower leg |
| M6597 | Unspecified synovitis and tenosynovitis, ankle and foot |
| M65971 | Unspecified synovitis and tenosynovitis, right ankle and foot |
| M65972 | Unspecified synovitis and tenosynovitis, left ankle and foot Unspecified synovitis and tenosynovitis, left ankle and foot |
| M65979 | Unspecified synovitis and tenosynovitis, unspecified ankle and foot |
| M6598 | Unspecified synovitis and tenosynovitis, other site |
| M6599 | Unspecified synovitis and tenosynovitis, multiple sites |
| M66 | Spontaneous rupture of synovium and tendon |
| M660 | Rupture of popliteal cyst |
| M661 | Rupture of synovium |
| M6610 | Rupture of synovium, unspecified joint |
| M6611 | Rupture of synovium, shoulder |
| M66111 | Rupture of synovium, right shoulder |
| M66112 | Rupture of synovium, left shoulder |
| M66119 | Rupture of synovium, unspecified shoulder |
| M6612 | Rupture of synovium, elbow |
| M66121 | Rupture of synovium, right elbow |
| M66122 | Rupture of synovium, left elbow |
| M66129 | Rupture of synovium, unspecified elbow |
| M6613 | Rupture of synovium, wrist |
| M66131 | Rupture of synovium, right wrist |
| M66132 | Rupture of synovium, left wrist |
| M66139 | Rupture of synovium, unspecified wrist |
| M6614 | Rupture of synovium, hand and fingers |
| M66141 | Rupture of synovium, right hand |
| M66142 | Rupture of synovium, left hand |
| M66143 | Rupture of synovium, unspecified hand |
| M66144 | Rupture of synovium, right finger(s) |
| M66145 | Rupture of synovium, left finger(s) |
| M66146 | Rupture of synovium, unspecified finger(s) |
| M6615 | Rupture of synovium, hip |
| M66151 | Rupture of synovium, right hip |
| M66152 | Rupture of synovium, left hip |