S83.402 Sprain of unspecified collateral ligament of left kneeNon-billable ICD-10-CM code.
M23 Internal derangement of knee ("current injury - see injury of knee and lower leg (S80-S89)")S86 Injury of muscle, fascia and tendon at lower leg level ("sprain of joints and ligaments of knee (S83.-)")S83.40 Sprain of unspecified collateral ligament of kneeS83.401 Sprain of unspecified collateral ligament of right kneeS83.401A Sprain of unspecified collateral ligament of right knee, initial encounterS83.401D Sprain of unspecified collateral ligament of right knee, subsequent encounterS83.401S Sprain of unspecified collateral ligament of right knee, sequelaS83.402 Sprain of unspecified collateral ligament of left knee (this code)S83.402A Sprain of unspecified collateral ligament of left knee, initial encounterS83.402D Sprain of unspecified collateral ligament of left knee, subsequent encounterS83.402S Sprain of unspecified collateral ligament of left knee, sequelaS83.409 Sprain of unspecified collateral ligament of unspecified kneeS83.409A Sprain of unspecified collateral ligament of unspecified knee, initial encounter