Anterior sublux of proximal end of tibia, unsp knee, subs

This code signifies a partial dislocation of the shin bone forward at the knee joint, where the specific knee (left or right) is not documented. This injury implies the joint surfaces have lost their normal alignment but are still in partial contact.

Apply this code for follow-up care of an anterior tibial subluxation when the laterality of the knee is not specified in the medical record. This includes subsequent office visits, physical therapy, or imaging studies related to the initial injury.

• Ensure documentation clearly indicates a "subsequent encounter" for this condition.
• Avoid using this code if the laterality (left or right knee) is specified; instead, use the more specific codes (S83.111- or S83.112-).
• Always query the provider for laterality if it's missing to ensure the most specific code is assigned.