Unsp fx shaft of unsp tibia, subs for clos fx w delay heal

This code indicates a follow-up encounter for a closed fracture of the tibia shaft, where the specific location of the fracture on the shaft is not documented, nor is the specific tibia (left or right). The key aspect is that the fracture is not healing at the expected rate, signifying delayed union.

Use this code when a patient presents for ongoing management of a previously diagnosed closed tibial shaft fracture that is demonstrating delayed healing. This applies when the documentation does not specify which tibia is affected or the precise location of the fracture along the shaft. This code is appropriate for subsequent visits after the initial treatment.

• Ensure documentation clearly states "delayed healing" for a closed fracture.
• Only use this code when the specific tibia (left/right) and the precise shaft location are not documented.
• Pair with external cause codes (V, W, X, Y) to describe the mechanism of injury, if known and applicable.