Unsp fracture of oth metacarpal bone, subs for fx w nonunion

This code signifies an unspecific fracture of a metacarpal bone, excluding the thumb, that has failed to heal properly. The "nonunion" indicates that the bone fragments have not united after a sufficient healing period, requiring further medical intervention. This is a subsequent encounter, meaning the patient is presenting for ongoing care related to this unhealed fracture.

Use this code when a patient is seen for follow-up care of a previously diagnosed metacarpal fracture (excluding the thumb) that has been determined to be a nonunion. This applies to situations where the specific metacarpal bone involved was not documented or is unknown. This code would be appropriate for patients undergoing treatment for the nonunion, such as bone grafting or revision surgery.

• Ensure documentation clearly states "nonunion" and that it's a subsequent encounter for the fracture.
• If the specific metacarpal bone (e.g., second, third, fourth, or fifth) is known, a more specific code from the S62.3- series should be used.
• Always review the entire medical record to confirm the encounter type (initial, subsequent, sequela) and the healing status of the fracture.