Oth fx third metacarpal bone, left hand, init for opn fx

This code signifies an open fracture of the third metacarpal bone in the left hand, meaning the bone has broken and the skin and soft tissue have been compromised, exposing the bone. This injury involves a bone in the middle of the palm, specifically the one leading to the middle finger.

This code is appropriate for the initial encounter of a patient presenting with an open fracture of their left third metacarpal. This would typically be used in emergency department settings or initial orthopedic consultations following the injury. It is crucial to select this code when the fracture is explicitly documented as "open."

• Always verify laterality (left hand) and the specific metacarpal bone (third) from the physician's documentation.
• Ensure the documentation clearly states "open fracture" to justify the 7th character "B" (initial encounter for open fracture).
• Do not use this code for closed fractures or subsequent encounters for the same injury.