Nondisp fx of shaft of 1st MC bone, r hand, init for opn fx

This code signifies a break in the main body (shaft) of the thumb bone (first metacarpal) in the right hand, where the bone fragments remain in their normal alignment. Importantly, this fracture is an "open" type, meaning the skin and soft tissues have been breached, exposing the bone to the outside environment. This is the initial encounter for treatment of this injury.

Use this code for a patient presenting for the first time with a right thumb metacarpal shaft fracture that has not displaced and involves a break in the skin. This would apply to injuries such as a crush injury or a direct blow that resulted in both the fracture and an open wound communicating with the fracture site. This code is appropriate for the initial surgical or non-surgical management of the open fracture.

• Ensure documentation clearly specifies "right hand" and "first metacarpal shaft."
• Verify the fracture is explicitly documented as "nondisplaced" and "open."
• The "B" in the seventh character indicates an initial encounter for the fracture, regardless of whether definitive treatment was provided.