Anterior spinal artery compression syndromes, lumbar region

This code signifies a neurological condition resulting from the compression of the anterior spinal artery specifically within the lumbar region of the spine. This compression leads to ischemia (reduced blood flow) of the spinal cord, potentially causing motor and sensory deficits in the lower extremities.

Apply this code when documentation clearly indicates a diagnosis of anterior spinal artery compression syndrome localized to the lumbar spine. This typically involves symptoms like sudden onset of lower extremity weakness, sensory loss, or bladder/bowel dysfunction, with imaging (e.g., MRI) or other diagnostic studies confirming arterial compression.

• Ensure documentation specifies "anterior spinal artery" and "compression syndrome" in the lumbar region.
• Do not confuse with other spinal cord compression syndromes that do not involve the anterior spinal artery or are in different spinal regions.
• Code any underlying cause of the compression (e.g., disc herniation, tumor) as an additional diagnosis.