Sacroiliitis denials in California external review
In the California DMHC record, independent physician reviewers decided 25 published external-review cases involving sacroiliitisand overturned the plan’s denial in 32%. That is a historical result among cases that reached this program, not a forecast for an individual appeal.
Most-fought treatments for sacroiliitis
| Category | Decisions | Overturned |
|---|---|---|
| Sacroiliac Joint Fusion | 4 | 25% |
| Radiofrequency Neurolysis | 3 | 0% |
What the insurer actually argued
| Reason given | Decisions | Overturned |
|---|---|---|
Experimental/Investigational The plan called the treatment unproven. These turn on published evidence, so the appeal is a literature argument. | 16 | 18.8% |
Medical Necessity The plan said the care wasn’t medically necessary. The most common fight, and the most winnable. | 9 | 55.6% |
What the reviewers wrote
Where the denial was overturned
Nature of Statutory Criteria/Case Summary: An enrollee has requested reimbursement for the sacroiliac joint fusion for treatment of the enrollee’s sacroiliitis. Findings: Two physician reviewers found that the SI joint fusion was likely to be more beneficial for treatment of the patient’s medical condition than any available standard therapy. In the medical literature, one study showed that minimally invasive SI joint fusion using triangular titanium implants was more effective than nonsurgical management at one year in relieving pain, improving function, and improving quality of life in patients with SI joint dysfunction caused by degenerative sacroiliitis or SI joint disruptions. Pain, disability, and quality of life also improved after crossover from nonsurgical to surgical treatment.
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for radiofrequency ablation (RFA) of the nerves innervating the sacroiliac (SI) joint with image guidance. The records provided for review document that this patient has a history of chronic low back pain secondary to right-sided sacroiliitis. Treatment has included a successful SI joint injection followed SI joint RFA with improvement in pain from 8/10 to 2/10. The patient’s provider has recommended repeat RFA of the SI joint. As noted in the medical literature, RFA of the sacral lateral branches affects the nerves that supply the posterior SI ligaments and posterior portion of the SI joint, also referred to as the posterior SI joint complex.
Where the denial was upheld
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for sacroiliac joint fusion. In peer-reviewed medical literature, researchers provided evidence that minimally invasive SI joint fusion using triangular porous coated implants placed across the SI joint improved pain, disability and quality of life at 24 months in patients with SI joint dysfunction due to degenerative sacroiliitis and SI joint disruption, and was associated with a decrease in opioid usage for SI joint or low back pain.
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for sacroiliac (SI) joint fusion surgery (CPT code 27279 LT). SI fusion maybe recommended on a case-by-case basis as a last line of therapy as treatment for SI joint infection, tumor involving the sacrum, disabling pain due to sacroiliitis/spondyloarthropathy, or SI pain due to severe traumatic injury. SI fusion is not recommended for mechanical low back pain, non-specific low back pain, SI joint disruption, degenerative sacroiliitis, SI joint osteoarthritis, or SI joint-mediated pain. The authors indicated that surgery can be beneficial for fracture or dislocation, but the application to degenerative disease was less clear. The North American Spine Society (NASS) supports SI fusion under limited conditions, if stringent diagnostic criteria have been met.
Figures and quotations on this page come from 42,749 published decisions in the California DMHC Independent Medical Review dataset. These are California external-review outcomes. Other state and federal programs have different eligibility rules, processes, and current availability; the rates here do not transfer to those programs or predict an individual result. Excerpts are quoted verbatim from the public record and describe this condition generally, not any individual case.
These outcomes describe eligible cases completed through California DMHC’s Independent Medical Review program. They do not estimate the chance that an internal appeal, an external review in another jurisdiction, or your individual case will succeed. Use the record to identify evidence patterns involving sacroiliitis, then check the rights and deadlines that apply to your plan.
SOURCE: CALIFORNIA DMHC INDEPENDENT MEDICAL REVIEW OUTCOMES (CHHS OPEN DATA) · AGGREGATES + DEIDENTIFIED DECISION EXCERPTS/REFERENCE IDS · METHODOLOGY