Intervertebral annulus fibrosus defect, large, lumbar region

This code describes a significant tear or rupture in the outer fibrous ring (annulus fibrosus) of an intervertebral disc specifically located in the lumbar spine. This defect allows for potential herniation of the nucleus pulposus and can lead to nerve compression and pain. It indicates a substantial structural compromise of the disc.

Use this code for patients diagnosed with a large annular tear in a lumbar intervertebral disc, often identified through imaging studies like MRI. Documentation should clearly specify the lumbar region and characterize the defect as "large" or "significant" to support this specific code. This code is appropriate when the defect is the primary cause of the patient's symptoms.

• Ensure documentation explicitly states "large" or "significant" annular defect; otherwise, a more general code for disc degeneration or displacement may be appropriate.
• Always specify the exact lumbar level if documented (e.g., L4-L5, L5-S1) using additional codes if available and applicable.
• Consider sequencing this code as the primary diagnosis when it is the main reason for the encounter, especially for surgical interventions or pain management related to the defect.