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

This code signifies a partial dislocation of the left knee where the upper part of the shin bone (tibia) has shifted sideways relative to the thigh bone (femur). This specific code is used for encounters following the initial treatment of this injury, indicating ongoing care or follow-up.

Apply this code for patients presenting for follow-up appointments, cast changes, physical therapy, or medication adjustments related to a previously diagnosed lateral subluxation of the proximal left tibia. It is appropriate when the patient is in the healing phase and receiving active treatment, but not for the initial diagnosis.

• Ensure documentation clearly specifies "left knee" and "lateral subluxation" of the proximal tibia.
• The "D" seventh character indicates subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.
• Do not use for initial injury (use "A" seventh character) or for sequelae/late effects (use "S" seventh character).