Dislocation of distal end of left ulna, initial encounter

This diagnosis code signifies a complete displacement of the distal (far) end of the ulna bone from its normal articulation, specifically on the left side of the body. This injury typically involves the disruption of the ligaments and joint capsule that stabilize the distal radioulnar joint.

Use this code when documenting the initial treatment for a patient presenting with a dislocated left distal ulna. This includes emergency department visits, initial orthopedic consultations, or any first encounter for this specific injury. It is appropriate for acute traumatic dislocations.

• Ensure laterality is correctly identified as "left."
• Verify that this is the initial encounter for treatment of the dislocation, not a subsequent visit for follow-up care or healing.
• Distinguish from subluxation or other wrist sprains/strains, which have different codes.