Unstbl burst fx fifth lum vertebra, subs for fx w delay heal

This code describes a severe, unstable fracture of the fifth lumbar vertebra where the vertebral body is significantly compressed and fragmented, often with retropulsion of bone fragments into the spinal canal. The "unstable" designation indicates a high risk of neurological compromise or further spinal deformity. The "delayed healing" component signifies that the fracture is not progressing to union at the expected rate.

This code is appropriate for encounters where a patient with a previously diagnosed unstable burst fracture of the L5 vertebra is being seen for ongoing management, and the fracture is explicitly documented as having delayed healing. This would include follow-up appointments, imaging studies to assess healing progress, or adjustments to treatment plans due to the delayed union.

• Ensure documentation clearly specifies the fifth lumbar vertebra (L5) and confirms the "unstable burst" morphology.
• Verify that the encounter is for a "subsequent encounter" and that "delayed healing" is explicitly stated or clearly implied by the clinical context.
• Do not use for initial fracture treatment or for fractures that are healing normally.