Smith's fx left rad, subs for opn fx type 3A/B/C w nonunion

This code signifies a Smith's fracture, which is a reverse Colles' fracture involving the distal radius with volar displacement, specifically affecting the left arm. The fracture is open, indicating a break in the skin, and is complicated by nonunion, meaning the bone fragments have failed to heal together after a previous treatment. This particular code is for a subsequent encounter, implying the patient is receiving ongoing care for this unhealed fracture.

Use this code for follow-up visits or ongoing treatment for a patient with a previously diagnosed left Smith's fracture that was open (Type IIIA, IIIB, or IIIC) and has not healed. This applies when the patient is returning for cast changes, wound care, physical therapy, or surgical intervention aimed at promoting union. It is appropriate for any encounter after the initial treatment of the nonunion.

• Ensure documentation clearly specifies "left radius" and "Smith's fracture" with an open wound type.
• Confirm the encounter is for ongoing care of the nonunion, not the initial injury or a healed fracture.
• Always sequence this code after any applicable external cause codes, if documented.