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Inpatient Hospital Stay denials: what the review data shows

Independent reviewers have decided 12 published cases where an insurer denied Inpatient Hospital Stay — and they overturned the insurer 58.3% of the time. A denial for Inpatient Hospital Stay is a starting position, not a final answer.

Published decisions
12
2001–2026
Overturned
58.3%
7 denials reversed
Typical time to a decision
24 days
Most land between 21 and 25 days
What the reviewers wrote
Excerpts from the independent reviewers’ published findings — the actual reasoning, quoted, not summarised.

Where the denial was overturned

The patient is a 63-year-old male who has been diagnosed with prostatic enlargement, gross hematuria, and bladder outlet obstruction. On 5/23/19, the patient underwent cystoscopy and transurethral resection of the prostate (TURP). The patient required continuous bladder irrigation on postoperative day one. He was given a void trial on 5/25/19 and discharged home. The patient has requested reimbursement for an inpatient hospital stay from 5/24/19 through 5/25/19. The Health Plan denied this request and reported that the services at issue were not medically necessary for the treatment of this patient. At issue in this case is whether an inpatient hospital stay from 5/24/19 through 5/25/19 was medically necessary for the treatment of the patient’s medical condition. Hematuria is the most common complication of TURP procedures in the immediate postoperative period.
Medical Necessity · 2019 · IMR MN19-31521
Nature of Statutory Criteria/Case Summary: The patient has requested reimbursement for inpatient hospital stay services. Findings: The physician reviewer found that the documented high risk of sudden death in patients with severe left ventricular dysfunction has led to the recommendation of implantable cardioverter-defibrillators in this group of patients (Kutyifa, et al.; Klein, et al.). Current data from multiple trials support the use of a wearable cardioverter defibrillator after an initial diagnosis of severe left ventricular dysfunction with an ejection fraction less than or equal to 35%, along with guideline directed medical therapy. This patient’s ejection fraction was 25% per echocardiogram.
Medical Necessity · 2021 · IMR MN21-36477

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Nature of Statutory Criteria/Case Summary: The patient has requested reimbursement for inpatient hospital stay. Findings: In this case, the patient was admitted with a diagnosis of unspecified injury of lower back. The records noted that he presented to an outside hospital with low back pain and lower extremity paresthesia and was transferred due to concerns for cauda equine. The patient reported onset of pain about one month prior while working out, and that the pain temporarily subsided with rest and recovery. The patient reported bilateral lower extremity paresthesias and radiculopathy over the past three days along with back pain. He reported that his bladder felt strange when he voided, but did not report any episodes of incontinence. Magnetic resonance imaging (MRI) did not show acute bony injury. There was no abnormal dumping or tethering of the cauda equina nerve roots.
Medical Necessity · 2023 · IMR MN23-39693
Nature of Statutory Criteria/Case Summary: A patient has requested reimbursement for an inpatient hospital stay. The Health Plan denied the inpatient hospital stay as not medically necessary for the patient’s medical condition. Findings: The physician reviewer found that the submitted documentation does not support the medical necessity of the requested inpatient hospital stay on the date in question. In this case, the patient was admitted in stable condition for a scheduled surgery. He improved clinically without any complications. By the date in question, the patient’s vital signs were stable, physical exam unremarkable, and his pain was noted as being well-controlled. He had a Foley catheter for voiding; was ambulating and could have been treated at a lower level of care.
Medical Necessity · 2019 · IMR MN19-30267

Figures and quotations on this page come from 42,749 published decisions in the California DMHC Independent Medical Review dataset. These are California outcomes — every state runs an equivalent external review, but the rates here are California’s. 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 are outcomes from California’s external review program — an independent physician panel that binds the insurer. Every state has an equivalent process, and internal appeals succeed even more often. Cite the outcome record for Inpatient Hospital Staywhen you appeal: reviewers routinely find that denials like yours didn’t hold up.

SOURCE: CALIFORNIA DMHC INDEPENDENT MEDICAL REVIEW OUTCOMES (CHHS OPEN DATA) · DERIVED AGGREGATE STATISTICS ONLY · 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 Inpatient Hospital Stay? 58.3% got it reversed.

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