Pathological fracture, right toe(s), subs for fx w malunion

This code signifies a fracture of the right toe(s) that occurred due to a pre-existing disease process, rather than trauma. The patient is in a subsequent phase of care for this fracture, and it has healed in an unsatisfactory position, resulting in a malunion.

This code is appropriate for follow-up encounters where a patient is being treated for a right toe pathological fracture that has healed incorrectly. Documentation should clearly indicate the pathological nature of the fracture, the specific location (right toe(s)), and the presence of a malunion during the healing process.

• Always sequence this code after the underlying disease causing the pathological fracture.
• Distinguish carefully between malunion (M84.4-) and nonunion (M84.3-); documentation must specify the type of healing complication.
• Ensure the laterality (right) and anatomical site (toe(s)) are precisely documented to support this specific code.