Unsp fx fourth metacarpal bone, left hand, init for opn fx

This code signifies an open fracture of the fourth metacarpal bone in the left hand, where the specific type of fracture (e.g., transverse, oblique, comminuted) is not documented. An open fracture indicates that the skin and soft tissue overlying the bone have been compromised, exposing the bone to the external environment. This is an initial encounter for treatment of the injury.

Use this code when documentation clearly states an open fracture of the left fourth metacarpal, but lacks further detail regarding the fracture's morphology. This is appropriate for the initial surgical or medical management of such an injury.

• Ensure the documentation explicitly states "open fracture" and specifies the "fourth metacarpal" and "left hand."
• Do not use this code if the fracture type (e.g., transverse, oblique) is specified; a more specific code would then be appropriate.
• Confirm this is the patient's initial encounter for this specific injury, not a follow-up or subsequent care.