Unsp fracture of unsp toe(s), subs for fx w malunion

This code signifies a fracture of an unknown toe, where the initial healing process resulted in a malunion (improper alignment of the bone fragments). This diagnosis is made during a follow-up visit after the initial injury and treatment, indicating ongoing management of the improperly healed fracture.

Use this code when documentation indicates a patient is presenting for care related to an unspecified toe fracture that has healed incorrectly, and the specific toe involved is not documented. This applies to subsequent encounters for treatment or evaluation of the malunion, such as for pain management, functional assessment, or consideration of corrective surgery.

• Ensure documentation clearly states "malunion" and that it's a subsequent encounter.
• Avoid this code if the specific toe (e.g., great toe, lesser toe) is identified; use a more specific S92.91- code.
• If the laterality (left/right) is known, use the appropriate 6th character (1 or 2) instead of 9.