Disp fx of first metatarsal bone, unsp foot, init for opn fx

This diagnosis code indicates a break in the first metatarsal bone, located in the forefoot, where the bone fragments are no longer in their normal alignment. The fracture is of an unspecified foot, meaning laterality (left or right) is not documented. This specific code also signifies that the skin and soft tissue surrounding the fracture site have been compromised, exposing the bone to the external environment, and it represents the initial treatment for this injury.

Use this code for a patient presenting with a newly diagnosed, displaced fracture of the first metatarsal bone that has an associated open wound. This applies to situations where the medical record does not specify whether the injury is to the left or right foot, and the patient is receiving their first active treatment for this particular fracture.

• Ensure documentation clearly states "displaced" and "open fracture" for the first metatarsal.
• Only use this code when laterality (left or right foot) is not specified in the medical record.
• The "B" suffix indicates an initial encounter for active treatment of the fracture.