Dislocation of metacarpophalangeal joint of left thumb, init

This code signifies a complete displacement of the joint connecting the metacarpal bone to the phalanx of the left thumb. This injury typically results in significant pain, swelling, and an inability to move the affected thumb.

Apply this code when documenting the initial treatment for a patient presenting with a dislocated metacarpophalangeal joint of their left thumb. This includes scenarios such as emergency room visits, urgent care, or the first orthopedic consultation following the injury.

• Ensure laterality (left thumb) is accurately documented in the medical record.
• Verify that "initial encounter" is appropriate for the patient's current phase of care.
• Distinguish from subluxation, which involves a partial displacement and would require a different code.