Unequal limb length (acquired), left tibia

This code signifies an acquired disparity in the length of the lower limbs, specifically affecting the left tibia. This condition is not present at birth but develops later due to various factors, leading to a measurable difference in the length of the left lower extremity compared to the right.

Use this code when documentation clearly indicates an acquired unequal limb length, with the left tibia identified as the primary site of the discrepancy. This typically arises from conditions such as fractures with malunion, osteomyelitis, or surgical interventions that affect bone growth or integrity. Supporting documentation should include physical examination findings, imaging reports (e.g., X-rays with limb length measurements), and a physician's assessment confirming the acquired nature and laterality.

• Ensure the documentation specifies "acquired" to differentiate from congenital limb length discrepancies.
• Verify laterality; this code is specific to the left tibia.
• Consider co-reporting with codes for the underlying cause of the acquired unequal limb length, if known and documented.