Osseous and sublux stenos of intvrt foramin of thor region

This diagnosis code signifies a narrowing of the intervertebral foramina in the thoracic spine, caused by bone (osseous) or partial dislocation (subluxation) issues. This narrowing can compress nerve roots exiting the spinal cord, leading to pain, numbness, or weakness in the trunk or extremities.

Apply this code when documentation explicitly states thoracic intervertebral foraminal stenosis due to osseous changes or subluxation. This is often identified through imaging studies (e.g., MRI, CT scan) and correlated with clinical symptoms. Use when the physician's assessment links the patient's symptoms directly to this anatomical narrowing.

• Differentiate from M99.52 (neural arch stenosis) and M99.42 (connective tissue stenosis) in the thoracic region.
• Ensure documentation specifies the cause of the stenosis as osseous or subluxation, not just "foraminal stenosis."
• Consider sequencing with codes for associated pain (e.g., G89.xx) or neurological deficits if documented.