Lateral sublux of proximal end of tibia, left knee, init

This diagnosis code signifies a partial dislocation of the upper part of the shin bone (tibia) at the knee joint, specifically occurring on the outer (lateral) side of the left knee. The joint surfaces are no longer perfectly aligned but remain in partial contact.

This code is appropriate for documenting the initial treatment of a patient presenting with a newly diagnosed or acutely injured left knee involving a lateral subluxation of the proximal tibia. This often results from trauma, such as a twisting injury or direct impact to the knee.

• Ensure documentation specifies "lateral" and "proximal end of tibia" for accurate code assignment.
• Confirm the encounter is indeed the "initial encounter" for this specific injury. Subsequent care will require a different seventh character.
• Laterality (left knee) is crucial for correct code selection.