Nondisp oblique fx shaft of l tibia, 7thN

This code describes a situation where a patient has a non-displaced oblique fracture of the shaft of their left tibia, and they are currently receiving care for a complication of this fracture: nonunion. Importantly, the original fracture was an open fracture classified as type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and potential contamination.

This code is used when a patient with a previously diagnosed open oblique fracture of the left tibial shaft (types IIIA, IIIB, or IIIC) presents for follow-up care or treatment specifically for the failure of that fracture to heal (nonunion). This would apply to scenarios such as surgical intervention for nonunion, casting changes, or ongoing monitoring related to the nonunion.

• Ensure documentation clearly specifies "nonunion" as the reason for the current encounter, not just routine follow-up.
• Verify the original fracture was an open fracture of the specified types (IIIA, IIIB, or IIIC) and involved the shaft of the left tibia.
• Confirm the fracture is described as "nondisplaced" and "oblique" to accurately apply this specific code.