Minimally Invasive Arthrodesis of the Sacroiliac Joint (SIJ)
L39811
Covered only when MI SIJ arthrodesis is performed WITH a transfixation device; procedures that do not transfix the joint and cases with other diagnosed causes of lumbosacral pain (e.g., radiculopathy, spinal stenosis, infection, tumor, fracture, inflammatory arthropathy) are excluded. Key requirements: ≥6 months of failed noninvasive conservative care; ≥3 positive SIJ provocative maneuvers; two image‑guided, contrast-enhanced intra‑articular SIJ diagnostic injections showing ≥75% pain relief and restored function; ≥1 therapeutic corticosteroid SIJ injection with ≥50% relief; required imaging (plain radiographs + CT/MRI of SIJ, AP pelvis, lumbar CT/MRI) excluding destructive pathology; documentation of baseline/follow‑up pain scores and absence of generalized pain disorders; and operative documentation of a transfixation implant.
"Patients with radiculopathy (i."