Fatigue fx vert, lumbosacr region, subs for fx w delay heal

This code signifies a stress fracture of a vertebra located in the lumbosacral spine (L5-S1 region) that is currently undergoing treatment for delayed healing. This type of fracture typically results from repetitive microtrauma rather than a single acute injury. The "G" in the seventh character indicates that the patient is in the healing phase, but the fracture is not progressing as expected.

Apply this code when documentation clearly indicates a fatigue or stress fracture of a lumbosacral vertebra with evidence of delayed union or nonunion. This is appropriate for follow-up encounters where the patient is receiving ongoing care for the fracture, such as physical therapy, bracing, or monitoring, and the healing process is prolonged. Physician notes should specify "delayed healing," "nonunion," or similar terminology.

• Ensure the documentation specifies "fatigue" or "stress" fracture; otherwise, a traumatic fracture code may be more appropriate.
• Verify the anatomical site is specifically lumbosacral (L5 or S1) to differentiate from other spinal regions.
• The seventh character "G" is crucial and indicates subsequent encounter for fracture with delayed healing; do not confuse with "A" (initial encounter) or "K" (nonunion).