Unstable burst fracture of fourth lumbar vertebra, init

This code signifies a severe, unstable fracture of the fourth lumbar vertebra where the vertebral body is significantly compressed and fragmented, often with retropulsion of bone fragments into the spinal canal. "Unstable" indicates a high risk of neurological compromise or further spinal deformity without surgical intervention. This specific code is for the initial treatment of a closed fracture, meaning the skin over the fracture is intact.

Use this code for patients presenting with a newly diagnosed, unstable burst fracture of the L4 vertebra, typically identified through imaging such as X-ray, CT, or MRI. This applies to the initial hospital admission or outpatient encounter where definitive treatment planning or initial management for the fracture is undertaken.

• Ensure documentation clearly specifies "unstable" and "burst" fracture morphology at the L4 level.
• Verify the encounter is for the initial treatment of the fracture; subsequent care would use a different seventh character.
• Confirm the fracture is "closed" (no open wound communicating with the fracture site).