Osteomyelitis of vertebra, lumbar region

This diagnosis code signifies an infection of the vertebral bone within the lumbar spine. It indicates inflammation of the bone marrow and surrounding bone tissue in the lower back, typically caused by bacterial or fungal pathogens. This condition can lead to significant pain, neurological deficits, and spinal instability.

Apply this code when documentation clearly states a diagnosis of osteomyelitis affecting a lumbar vertebra. This typically follows imaging studies (e.g., MRI, CT scan) confirming bone infection and often positive cultures from biopsy or blood. Use this code for both acute and chronic presentations of vertebral osteomyelitis in the lumbar region.

• Ensure documentation specifies "osteomyelitis" and explicitly identifies the "lumbar region" of the spine.
• Do not confuse with discitis (inflammation of the intervertebral disc) unless osteomyelitis is also present and documented.
• Look for associated codes for the infectious agent (e.g., B95-B97 for bacterial agents) to provide a more complete clinical picture.