Unequal limb length (acquired), right fibula

This code signifies a noticeable difference in the length of the lower limbs that developed after birth, specifically affecting the right fibula. This acquired discrepancy can lead to gait abnormalities, back pain, and other musculoskeletal issues. It is distinct from congenital limb length differences.

Apply this code when documentation clearly indicates an acquired unequal length of the lower extremities, with the right fibula identified as the primary site of the discrepancy. This typically occurs following trauma, infection, or surgical procedures that affect bone growth or structure. Documentation should specify "acquired" and the affected side.

• Ensure documentation specifies "acquired" versus "congenital" (Q72.x for congenital).
• Verify the laterality (right) and the specific bone (fibula) are clearly stated.
• Consider additional codes for the underlying cause of the acquired discrepancy, if known and documented.