Prior Authorization Required

Prior authorization is required for sacroiliac joint (SIJ) fusion procedures. Requests must follow the Health Plan's prior authorization procedures and be approved before the procedure is scheduled.

• Affected CPT codes that support coverage when criteria are met: 27279, 27280
• CPT code that does not support coverage under these criteria: 27278

Authorization Documentation Requirements

Authorization requests must include documentation demonstrating that all clinical criteria are met. Submit complete medical records, including conservative therapy documentation, diagnostic testing, imaging, and procedure notes as applicable.

• Documentation of at least six months of conservative therapy, including medication optimization (or contraindication), activity modification, and at least 4–6 weeks of active therapeutic exercise targeted to lumbar spine, pelvis, SIJ and hip (or documentation of inability to tolerate)
• Clinical notes documenting pain consistent with SIJ pain (non-radiating, typically unilateral, caudal to L5) and interference with activities of daily living
• Physical exam findings: localized posterior SIJ tenderness and results of at least three positive provocative tests
• Imaging reports (within 6 months): plain radiographs, CT or MRI of SIJ, plain pelvic radiographs, and CT/MRI of the lumbar spine as indicated to exclude alternative diagnoses
• Documentation of at least 75% pain reduction after image-guided, contrast-enhanced diagnostic SIJ injection on two separate occasions
• Documentation of failure of at least one therapeutic intra-articular SIJ corticosteroid injection unless contraindicated
• Planned surgical approach (lateral transarticular) and device/implant details demonstrating transfixing implant placement when applicable

Denial Triggers for SIJ Fusion

Requests may be denied if required clinical criteria or documentation are not met. Denials may also occur when the indication is for an unproven or non-covered use.

• Less than six months of documented conservative therapy
• Absence of documented ≥75% pain relief from diagnostic SIJ injections on two occasions
• No documentation of at least one failed therapeutic intra-articular SIJ injection (unless contraindicated)
• Missing or outdated imaging that does not exclude alternative diagnoses (tumor, infection, fracture, inflammatory arthropathy, or concomitant hip pathology)
• Clinical presentation inconsistent with SIJ pain (e.g., diffuse or generalized pain, fibromyalgia, somatoform disorder) or lack of localized posterior SIJ tenderness and positive provocative tests
• Use of implants that do not transfix the joint (e.g., intra-articular implants such as bone allograft or synthetic devices without transfixation) for indications covered only when transfixing implants are used
• Procedure performed via an approach other than the required lateral transarticular approach when that is a criterion

Denial Risk and Administrative Considerations

Coverage decisions are subject to the member's benefit documents, exclusions, limitations, and applicable Health Plan administrative policies. The Health Plan may change, amend, or withdraw this policy; effective dates are determined by the Health Plan.

• Authorization and payment are not guaranteed solely by meeting clinical criteria; benefits, exclusions, and member-specific coverage apply
• Effective date of this clinical policy is determined by the Health Plan; verify authorization timing against the plan's effective date
• Providers remain responsible for exercising professional medical judgment and for the medical care of members/enrollees