Posterior disloc of proximal end of tibia, unsp knee, init

This code signifies a posterior displacement of the upper portion of the shin bone (tibia) relative to the thigh bone (femur), indicating a dislocation of the knee joint. This specific code is used when the affected knee is not specified (left or right).

Use this code for a patient presenting with a newly diagnosed posterior tibial dislocation where the laterality of the knee is not documented. This applies to the initial treatment or evaluation of the injury. It would be appropriate for emergency room visits or initial orthopedic consultations.

• Ensure documentation clearly states "posterior dislocation" of the proximal tibia.
• Only use this code when the specific knee (left or right) is not identified in the medical record.
• Append additional characters for subsequent encounters or sequelae as appropriate.