Nondisp Rolando's fx, unsp hand, subs for fx w malunion

This code describes a specific type of fracture involving the base of the thumb metacarpal (Rolando's fracture) that is not displaced. The "subsequent encounter" indicates the patient is receiving follow-up care for a fracture that has healed incorrectly, resulting in malunion. The "unspecified hand" denotes that the laterality of the injury is not documented.

Use this code when a patient presents for ongoing management or evaluation of a previously diagnosed nondisplaced Rolando's fracture of an unspecified hand, and imaging or clinical assessment confirms that the fracture has healed in an anatomically incorrect position (malunion). This applies to situations where the malunion is being addressed, monitored, or is causing ongoing symptoms.

• Ensure documentation clearly states "Rolando's fracture" and "nondisplaced" along with evidence of malunion.
• Confirm the encounter type is "subsequent" for fracture care, not initial or sequela.
• Only use "unspecified hand" if the medical record does not specify left or right.