Displ Rolando's fracture, unsp hand, subs for fx w malunion

This code signifies a Rolando's fracture, which is a comminuted intra-articular fracture at the base of the first metacarpal bone, specifically involving the carpometacarpal joint. In this instance, the fracture fragments are not properly aligned (displaced), and the injury is located in an unspecified hand. The "subsequent encounter" indicates that the patient is receiving follow-up care for a fracture that has healed incorrectly, resulting in malunion.

This code is appropriate for documenting ongoing treatment for a patient who previously sustained a displaced Rolando's fracture of an unspecified hand, and that fracture has now healed in an anatomically incorrect position. This would include scenarios such as physical therapy to address functional limitations due to malunion, or surgical consultation for corrective osteotomy. It should be used when the malunion itself is the focus of the current encounter.

• Ensure documentation clearly specifies "malunion" and that the encounter is for follow-up care related to this complication.
• Verify laterality (left or right hand) is not specified in the medical record; if it is, a more specific code should be used.
• Confirm the fracture type is indeed a Rolando's fracture, not another type of metacarpal base fracture.