Fx unsp tarsal bone(s) of unsp foot, init for opn fx

This code signifies a break in one or more of the tarsal bones (e.g., talus, calcaneus, navicular, cuboid, cuneiforms) in the foot, where the skin and soft tissues are also compromised, exposing the bone to the outside environment. The specific tarsal bone and the affected foot are not documented.

Apply this code for initial treatment of an open tarsal bone fracture when the medical record does not specify which tarsal bone is fractured or which foot is involved. This is typically used in emergency department settings or initial consultations before more detailed imaging or surgical exploration has occurred.

• Ensure the documentation explicitly states "open fracture" and that it's the initial encounter for treatment.
• Avoid this code if the specific tarsal bone (e.g., talus, calcaneus) or the affected foot (left/right) is identified in the medical record.
• If laterality or specific bone is identified, use a more specific code from the S92.2 category.