Monitored Anesthesia Care denials in California external review

In the California DMHC record, independent physician reviewers decided 107 published external-review cases involving Monitored Anesthesia Careand overturned the plan’s denial in 30.8%. That is a historical result among cases that reached this program, not a forecast for an individual appeal.

California DMHC decisions
107
2010–2026
Overturned
30.8%
33 denials reversed

Conditions behind Monitored Anesthesia Care denials

What insurers denied — and how those fights ended.
CategoryDecisionsOverturned
Gastroesophageal Reflux Disease9
33.3%
Rectal Bleeding3
0%
Colorectal Cancer Screening3
0%
Typical time to a decision
17 days
Most land between 10 and 21 days
Recent direction
Rising
43.5%50% overturned, last three years

What the reviewers wrote

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

Where the denial was overturned

Findings: The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient requested authorization and coverage for radiofrequency ablation with Coolief technology and monitored anesthesia care (MAC). Sacroiliac joint dysfunction (SIJ) is a very common cause of refractory lower back pain commonly felt in the gluteal region but may also affect the lower extremities and/or the lumbar region. In a study, the authors evaluated radiofrequency ablation (RFA) of the sacroiliac joint (SI) joint and found that all patients who underwent RFA reported excellent pain relief and ceased taking analgesic medications.
Medical Necessity · 2024 · IMR MN24-41000
Nature of Statutory Criteria/Case Summary: An enrollee has requested reimbursement for monitored anesthesia care for management of the enrollee’s pain during her colonoscopy. Findings: The physician reviewer found that according to the American Society of Anesthesiologists (ASA), an essential component of MAC anesthesia is the “anesthesia assessment and management of a patient’s actual or anticipated physiological derangements or medical problems that may occur during a diagnostic or therapeutic procedure.” Also, “While Monitored Anesthesia Care may include the administration of sedatives and/or analgesics often used for Moderate Sedation, the provider of MAC must be prepared and qualified to convert to general anesthesia when necessary.
Medical Necessity · 2017 · IMR MN17-25566

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Nature of Statutory Criteria/Case Summary: The patient is a 48-year-old female who underwent a colonoscopy on 8/1/22 for colon cancer screening. The patient received monitored anesthesia care for the procedure. The 8/1/22 anesthesia report noted the patient had a risk classification score of American Society of Anesthesiologists (ASA) class one and the airway score was graded as a Mallampati 1. There was no documentation of significant cardiac, pulmonary, renal or hepatic disease. There is no documentation by the anesthesia provider that the patient presented with a difficult airway or previous difficulties/ problems with anesthesia. There is no documentation that the patient had issues with substance abuse or was a smoker. The Health Plan has denied this request indicating that the requested treatment was not medically necessary for treatment of the patient.
Medical Necessity · 2023 · IMR MN23-38675
Nature of Statutory Criteria/Case Summary: The patient has been diagnosed with Crohn’s disease. The patient reported that there was a questionable perforation episode related to a colonoscopy procedure in 2014. The patient underwent another uncomplicated colonoscopy in June 2017, and the procedural notes did not demonstrate any difficulties with anesthesia or sedation during the procedure. There is no indication that the patient has any cardiac, pulmonary, renal, or liver diseases. There is no evidence of substance abuse. The physical examination was unremarkable, and the patient’s body mass index (BMI) was noted to be 24.77. The provider ordered a repeat colonoscopy to evaluate for active inflammation. The patient has requested authorization and coverage for monitored anesthesia care (MAC).
Medical Necessity · 2020 · IMR MN20-33215

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 Monitored Anesthesia Care, 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 Monitored Anesthesia Care? Use the California record to prepare.

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