Nondisp fx of neck of unsp metacarpal bone, init for opn fx

This code signifies a fracture of the neck of a metacarpal bone that has not been displaced from its anatomical position. It specifically applies to open fractures, meaning there is a break in the skin communicating with the fracture site, and is used for the initial phase of treatment. The "unspecified" nature indicates the specific metacarpal (e.g., second, third) is not documented.

This code is appropriate for initial encounters where a patient presents with a newly diagnosed, non-displaced open fracture of an unspecified metacarpal neck. It would be used for the initial surgical repair, casting, or other primary management of the injury. Subsequent encounters for follow-up care or healing would require a different seventh character.

• Ensure documentation clearly specifies "nondisplaced" and "open fracture" to support this code.
• Verify the encounter is truly "initial" for the fracture; subsequent care requires a different seventh character (e.g., D for subsequent, S for sequela).
• If the specific metacarpal bone (e.g., second, third, fourth, fifth) is documented, a more specific code should be used.