Subluxation stenosis of neural canal of pelvic region

This code describes a narrowing of the spinal canal within the pelvic region (sacrum and coccyx) caused by a partial dislocation or misalignment of vertebrae. This subluxation leads to compression of the neural structures, potentially causing pain, sensory deficits, or motor weakness in the lower extremities or pelvic area.

Use this code when documentation clearly indicates a diagnosis of spinal stenosis in the sacral or coccygeal region that is directly attributed to a vertebral subluxation. This diagnosis is typically supported by imaging studies (e.g., MRI, CT) showing both the subluxation and the resulting neural canal narrowing, along with clinical findings consistent with nerve compression.

• Ensure documentation specifies "subluxation" as the cause of the stenosis, not just general stenosis.
• Distinguish from stenosis due to degenerative changes (M48.0x) or other causes.
• Always code the specific vertebral level(s) affected if documented (e.g., sacral, coccygeal).