Dislocation of MCP joint of right thumb, init

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

Apply this code when documenting the initial presentation and treatment for a patient who has sustained a dislocation of their right thumb's metacarpophalangeal joint. This includes emergency department visits, initial orthopedic consultations, or primary care encounters where the injury is first diagnosed.

• Ensure laterality is correctly identified as "right thumb."
• Confirm the encounter is the "initial encounter" for this specific injury. Subsequent care would use a different seventh character.
• Verify documentation clearly states a "dislocation" and not a subluxation or sprain.