ICD-10-CM > S00-T88 > S80-S89 > S83 > S83.1 > S83.11 S83.11 Anterior subluxation and dislocation of proximal end of tibia Non-Billable/Non-Specific Applicable To Posterior subluxation and dislocation of distal end of femur Codes S83.111Anterior subluxation of proximal end of tibia, right kneeS83.111A..., initial encounterS83.111D..., subsequent encounterS83.111S..., sequelaS83.112Anterior subluxation of proximal end of tibia, left kneeS83.112A..., initial encounterS83.112D..., subsequent encounterS83.112S..., sequelaS83.113Anterior subluxation of proximal end of tibia, unspecified kneeS83.113A..., initial encounterS83.113D..., subsequent encounterS83.113S..., sequelaS83.114Anterior dislocation of proximal end of tibia, right kneeS83.114A..., initial encounterS83.114D..., subsequent encounterS83.114S..., sequelaS83.115Anterior dislocation of proximal end of tibia, left kneeS83.115A..., initial encounterS83.115D..., subsequent encounterS83.115S..., sequelaS83.116Anterior dislocation of proximal end of tibia, unspecified kneeS83.116A..., initial encounterS83.116D..., subsequent encounterS83.116S..., sequela