Nondisp commnt fx shaft of ulna, l arm, 7thK

This code signifies a complex break in the main part of the left ulna bone, where the bone fragments are shattered but remain in their anatomical position. It indicates that the fracture has not healed properly and the patient is receiving ongoing treatment for this complication.

Apply this code when documenting follow-up care for a patient with a previously diagnosed comminuted ulnar shaft fracture on the left arm that has failed to unite. This includes scenarios where the patient is undergoing conservative management, cast changes, or preparing for surgical intervention due to the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the left ulna.
• Verify the fracture is explicitly described as "nondisplaced" and "comminuted."
• This code is for subsequent encounters; an initial encounter would use a different seventh character.