Strain or sprain of other or unspecified parts of knee

**Definition:** A collective term for muscle and ligament injuries of other and unspecified tissues associated with the knee without dislocation or fracture; a joint injury in which some of the fibers of a supporting ligament are ruptured but the continuity of the ligament remains intact. A strain is an overstretching or overexertion of some part of the musculature.

**Exclusions:** - sprain of patellar ligament