Complex tear of lat mensc, current injury, r knee, sequela

This code signifies a complex tear of the lateral meniscus in the right knee that occurred in the past, and the patient is now experiencing residual effects or complications from that original injury. A complex tear involves multiple tear patterns, such as horizontal, vertical, or radial components, making it more severe than a simple tear. The "sequela" aspect indicates that the current encounter is for managing long-term consequences rather than the initial acute injury.

This code is appropriate when a patient presents with ongoing symptoms, functional limitations, or complications directly attributable to a previously sustained complex lateral meniscal tear in their right knee. Examples include chronic pain, instability, locking, or persistent effusion after the acute phase of the injury has passed and initial treatment (surgical or non-surgical) may have already occurred. It should be used when the focus of the encounter is on the long-term management of the injury's aftermath.

• Ensure documentation clearly states the tear is "complex" and involves the "lateral meniscus" of the "right knee."
• Verify that the encounter is for a "sequela" or late effect of the injury, not an acute or subsequent current injury.
• Always code an external cause code (V00-Y99) in conjunction with this code if the original injury was due to an external cause, even for sequela encounters.