Nondisp fx of trapezium, unsp wrist, init for opn fx

This code signifies a break in the trapezium bone of the wrist that has not shifted from its normal anatomical position. The fracture is open, meaning there is a wound communicating with the fracture site, and this encounter represents the initial treatment for the injury.

Apply this code when documentation confirms an open, nondisplaced fracture of the trapezium bone in an unspecified wrist, and the patient is receiving initial active treatment for the injury. This would be appropriate for the initial surgical repair or emergency department visit for the acute injury.

• Ensure the documentation clearly specifies "nondisplaced" and "open fracture" for the trapezium.
• Verify that the encounter is for the initial treatment of the fracture, not follow-up care.
• An additional code for the open wound should be considered if further specificity is available.