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Heterogeneously Dense Breast Tissue: when insurers say no, reviewers often say yes

In 30 published external-review decisions involving heterogeneously dense breast tissue, independent physician reviewers overturned the insurer’s denial 96.7% of the time.

Published decisions
30
2001–2026
Overturned
96.7%
29 denials reversed

Most-fought treatments for heterogeneously dense breast tissue

What insurers denied — and how those fights ended.
TreatmentDecisionsOverturned
Digital Breast Tomosynthesis21
100%
Typical time to a decision
14 days
Most land between 10 and 21 days
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: An enrollee has requested reimbursement for digital breast tomosynthesis performed. Findings: The physician reviewer found that the patient who was asymptomatic with respect to her breasts. On the date of dispute, the patient underwent a routine screening mammogram consisting of a synthetically reconstructed two dimensional views with three dimensional tomosynthesis study. In addition, the patient had an automated whole breast sonogram examination. The current images were compared to a prior mammogram dated six years prior, and no interval changes were noted on the mammographic portion of the study. There were no masses, areas of suspicious calcifications, or areas of architectural distortion on the mammogram.
Experimental/Investigational · 2017 · IMR EI17-24484
Nature of Statutory Criteria/Case Summary: An enrollee has requested reimbursement for digital breast tomosynthesis performed Findings: The physician reviewer found that the patient who was asymptomatic with respect to her breasts. On the date of dispute, the patient underwent a routine screening mammogram consisting of a synthetically reconstructed two dimensional views with three dimensional tomosynthesis study. The current images were compared to prior mammograms, and no interval changes were noted. There was evidence of a nodule which was described as benign-appearing, stable and smooth. Her breasts were heterogeneously dense. The Health Plan has denied reimbursement for the digital breast tomosynthesis portion of the examination on the date of dispute. Per the Health Plan, the service at issue was investigational for the evaluation of this patient.
Experimental/Investigational · 2017 · IMR EI17-24503

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for breast magnetic resonance imaging (MRI). The records provided for review document that this patient’s breast tissue on mammography was described as heterogeneously dense, not extremely dense. The patient was evaluated with targeted ultrasound and diagnostic mammogram which included coned compression spot films and were interpreted as negative. In addition, there are no increased risk factors for breast cancer delineated such as a strong family history or BRCA1 genetic mutation in the patient’s medical records. While small masses can be obscured by heterogeneously dense tissue, the same limitations of mammography that are present in extremely dense tissue are not present in heterogeneously dense breasts.
Medical Necessity · 2018 · IMR MN18-27947

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 condition generally, not any individual case.

How to use this in your appeal

These outcomes come from California’s external review program — an independent physician panel whose decision binds the insurer. Every state has an equivalent, and internal appeals succeed even more often. If your care for heterogeneously dense breast tissue was denied, the published record says the denial is worth fighting.

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.

Fighting a denial for heterogeneously dense breast tissue? 96.7% won.

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