Unsp trochan fx left femur, init for opn fx type 3A/B/C

This code signifies an unspecified fracture of the trochanteric region of the left femur, indicating the initial treatment phase for an open fracture classified as type IIIA, IIIB, or IIIC. The "unspecified" nature means the specific trochanteric location (e.g., greater or lesser) is not documented.

Apply this code when a patient presents with a newly diagnosed, open trochanteric fracture of the left femur requiring initial treatment, and the Gustilo-Anderson classification is documented as IIIA, IIIB, or IIIC. This code is appropriate for the initial inpatient or outpatient encounter for managing the acute injury.

• Ensure documentation clearly specifies "left femur" and an "open" fracture type IIIA, IIIB, or IIIC.
• Do not use this code for subsequent encounters or for closed fractures.
• A more specific trochanteric fracture code should be used if the documentation specifies greater or lesser trochanter.