Other disorders of continuity of bone, unsp tibia and fibula

This code signifies a non-union or malunion of a fracture, or other specified disruption in the normal continuity of bone, affecting the tibia and/or fibula. It indicates that the specific nature of the disorder is not further detailed in the medical record, and the affected bone (tibia or fibula) is also unspecified.

Use this code when documentation clearly states a "disorder of continuity of bone" in the lower leg, such as a non-union or malunion of a fracture, but lacks specificity regarding the exact type of disorder or which bone (tibia or fibula) is primarily affected. This code is appropriate when the physician's notes indicate an ongoing issue with bone healing or alignment in the lower leg without further detail.

• Avoid using this code if more specific documentation is available regarding the type of disorder (e.g., nonunion, malunion) or the specific bone involved (tibia or fibula).
• Always query the provider for greater specificity if the documentation is vague, as more precise codes exist for specific nonunions (M84.3x) and malunions (M84.4x).
• This code should be sequenced as a secondary diagnosis when the primary reason for the encounter is related to the management of this disorder.