Nondisp transverse fx l patella, 7thN

This code signifies a transverse fracture of the left kneecap that is not displaced, meaning the bone fragments are still in their normal alignment. The "subsequent encounter" indicates that this is not the initial treatment for the fracture, and it specifically refers to an open fracture (where the skin is broken) of type IIIA, IIIB, or IIIC, which are severe classifications. The "nonunion" aspect means the fracture has failed to heal completely after a reasonable period.

This code is appropriate for follow-up visits or hospital admissions for a patient whose left patellar transverse fracture, initially an open fracture of a severe type, has not healed. It would be used when the patient is receiving ongoing treatment or management for this nonunion. This includes scenarios like planning for revision surgery, monitoring the nonunion, or managing complications related to the unhealed fracture.

• Ensure documentation clearly specifies "subsequent encounter" and the nonunion status of the fracture.
• Verify the original fracture was an open fracture classified as type IIIA, IIIB, or IIIC.
• Do not use this code for the initial treatment of the fracture or if the fracture has healed.