Nondisp subtrochnt fx l femur, subs for clos fx w nonunion

This code describes a situation where a patient has a subtrochanteric fracture in the left femur that is not displaced, and they are receiving ongoing care for this fracture. Specifically, it indicates that the fracture has not healed properly (nonunion) and is being managed as a closed injury during a subsequent visit.

Use this code for follow-up encounters where a patient with a previously diagnosed nondisplaced subtrochanteric fracture of the left femur is being treated for a nonunion. This applies when the fracture remains closed and the patient is past the initial active treatment phase.

• Ensure documentation clearly states "nonunion" for the fracture.
• Verify the fracture is specifically "subtrochanteric" and on the "left" side.
• Confirm the encounter is for subsequent care, not the initial treatment.