Nondisp seg fx shaft of unsp tibia, 7thK

This code signifies a fracture of the tibia shaft that has broken into multiple pieces (segmental) but where the bone fragments are still in their normal anatomical alignment (nondisplaced). Crucially, this code indicates that the fracture has failed to heal properly (nonunion) and the patient is in a subsequent phase of care for this closed injury.

Use this code when documenting ongoing treatment for a previously diagnosed closed, nondisplaced segmental tibia shaft fracture that has not united. This applies to follow-up visits, cast changes, or preparations for further intervention (e.g., surgery) to address the nonunion. It should be assigned after the initial encounter for the fracture.

• Ensure documentation clearly states "nondisplaced," "segmental," and "nonunion" for the tibia shaft.
• Verify that the encounter is "subsequent" and the fracture was "closed" initially.
• Do not use for initial fracture treatment or for malunion, which is a different complication.