Nondisp subtrochnt fx unsp femr, 7thN

This code signifies a non-displaced fracture located below the lesser trochanter of the femur, which has failed to heal properly (nonunion). The fracture was initially an open fracture, meaning the skin was broken, and was classified as a severe open fracture type IIIA, IIIB, or IIIC. This specific code is used when the patient is receiving follow-up care for this nonunion.

Use this code for patients presenting for ongoing treatment, such as surgical intervention for nonunion, cast changes, or wound care, related to a previously sustained non-displaced subtrochanteric open femoral fracture (type IIIA, IIIB, or IIIC) that has not healed. This code is appropriate for subsequent encounters after the initial treatment of the acute fracture.

• Ensure documentation clearly states "nonunion" and specifies the fracture as "nondisplaced" and "subtrochanteric."
• Verify the original open fracture type (IIIA, IIIB, or IIIC) is documented, as this impacts code selection.
• This "N" seventh character indicates a subsequent encounter for nonunion; do not use for initial treatment of the acute fracture or for routine healing.