Dislocation and sprain of joints and ligaments of knee Includes:avulsion of joint or ligament of kneelaceration of cartilage, joint or ligament of kneesprain of cartilage, joint or ligament of kneetraumatic hemarthrosis of joint or ligament of kneetraumatic rupture of joint or ligament of kneetraumatic subluxation of joint or ligament of kneetraumatic tear of joint or ligament of kneeExcludes2derangement of patella (M22.0-M22.3)injury of patellar ligament (tendon) (S76.1-)internal derangement of knee (M23.-)old dislocation of knee (M24.36)pathological dislocation of knee (M24.36)recurrent dislocation of knee (M22.0)strain of muscle, fascia and tendon of lower leg (S86.-)The appropriate 7th character is to be added to each code from category S83A - initial encounterD - subsequent encounterS - sequela