Hyalgan Injections denials in California external review

In the California DMHC record, independent physician reviewers decided 29 published external-review cases involving Hyalgan Injectionsand overturned the plan’s denial in 58.6%. That is a historical result among cases that reached this program, not a forecast for an individual appeal.

California DMHC decisions
29
2003–2026
Overturned
58.6%
17 denials reversed

By condition

Published outcomes when Hyalgan Injections was denied for these conditions.
ConditionDecisionsOverturned
Osteoarthritis Of The Knee13
61.5%
Typical time to a decision
19 days
Most land between 7 and 21 days
Handled as urgent
27.6%
Expedited when a delay would cause harm

What the reviewers wrote

Excerpts from the independent reviewers’ published findings — the actual reasoning, quoted, not summarised.

Where the denial was overturned

Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for a series of Hyalgan injections and arthrocentesis to the left knee. Evidence from systematic reviews and randomized controlled trials indicate that although viscosupplementation may relieve knee pain in some patients with osteoarthritis, data has not established which patients will benefit. Several studies have tried mixing hyaluronic acid with corticosteroids, platelet-rich plasma, and other agents, to increase its effectiveness. Guidelines from the American Academy of Orthopedic Surgeons (AAOS) indicate that the data on the safety and efficacy of viscosupplementation remain inconclusive. As such, the AAOS does not currently recommend viscosupplementation as routine treatment for osteoarthritis of the knees.
Medical Necessity · 2025 · IMR MN25-44181
Nature of Statutory Criteria/Case Summary: An enrollee has requested viscosupplementation with Hyalgan injections. Findings – The physician reviewer found the submitted documentation supports that the requested medication is medically necessary. Current medical literature continues to support the use of viscosupplementation for osteoarthritis of the knees. There is good evidence that intra-articular hyaluronic acid injections reduce pain and increase function in knee osteoarthritis, and the benefits are long-lasting as compared with intra-articular corticosteroids. Evidence from studies of repeat courses of intra-articular hyaluronic acid demonstrates an improvement in pain or function lasting up to 40 months, a reduction in use of concomitant analgesia by up to 50%, and suggests that there may be a delay in the need for total knee replacement of around two years.
Medical Necessity · 2019 · IMR MN19-30411

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Nature of Statutory Criteria/Case Summary: The patient with a diagnosis of chronic low back, bilateral hip, and bilateral shoulder pain. The patient rated pain a 7 out of 10 without medications. She was taking Vicodin and ibuprofen without relief. She reported that she was having a lot of bilateral shoulder pain, alternating between the right and left, with an associated cracking sound. She reported pain and difficulty performing activities of daily living. She reported that her hip pain was constant and making it difficult for her to walk, stand, sit or move. She had physical therapy but felt like it made the pain worse. Her symptoms had improved after a corticosteroid injection into the hips. Bilateral shoulder and hip examinations were not documented.
Medical Necessity · 2019 · IMR MN19-30723
Nature of Statutory Criteria/Case Summary: An enrollee has requested Hyalgan injections for treatment of her osteoarthritis. Findings: The physician reviewer found that the American Academy of Orthopedic Surgeons (AAOS) has changed their policy with regard to viscosupplementation and state that “we cannot recommend using hyaluronic acid for patients with symptomatic osteoarthritis of the knee”. The medical literature concluded that treatment of knee osteoarthritis with injections of intra-articular hyaluronic acid does not meet CTAF criteria for safety, efficacy and improvement in health outcomes for progression to knee replacement or progression of disease. In addition, the medical literature reported that in patients with knee osteoarthritis, viscosupplementation is associated with a small and clinically irrelevant benefit and an increased risk for serious adverse events.
Medical Necessity · 2015 · IMR MN15-20862

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 treatment generally, not any individual case.

How to use this in your appeal

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 Hyalgan Injections, 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

Not legal or medical advice. Coverage Rights is a self-help tool that helps you prepare your own appeal. For advice about your specific situation, talk to a licensed attorney or your doctor.

Denied Hyalgan Injections? Use the California record to prepare.

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