Displ commnt fx shaft of rad, unsp arm, 7thN

This code signifies a complex fracture of the forearm, specifically a comminuted break in the shaft of the radius that is no longer in its proper alignment. It indicates that the fracture is an open type (IIIA, IIIB, or IIIC), meaning the bone has broken through the skin, and has failed to heal properly after an initial treatment, leading to a nonunion. This specific code is used for subsequent encounters for ongoing management of this complicated healing process.

This code is appropriate for documenting follow-up care for a patient with a previously diagnosed displaced comminuted open fracture of the radial shaft (unspecified arm) that has developed a nonunion. It should be used when the patient is returning for further treatment, assessment, or management related to the nonunion of this specific type of open fracture. Examples include subsequent surgical interventions, cast changes, or monitoring of the nonunion.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" for this specific open fracture type.
• Verify the fracture is indeed comminuted and displaced, and that the open fracture type (IIIA, IIIB, or IIIC) was previously established.
• Do not use this code for initial treatment of the fracture or for routine follow-up of a healing fracture without nonunion.