Barriers to early detection: Insurance denials for breast MRI screening in women with germline BRCA1/2 mutations.

Objectives: Women with germline BRCA1/2 pathogenic variants (gBRCA1/2) are recommended to undergo annual breast MRI and mammography. Our objective was to describe the frequency of insurance denials for annual breast MRIs in women with gBRCA1/2 and determine denial trends.

Methods: Women with gBRCA1/2 following in a high-risk breast cancer clinic with breast MRIs ordered from 2020 to 2021 were identified and cross-referenced with a database of insurance denials. Radiology records were queried to determine if screening breast MRIs were performed in 2020 and 2021. Rates of MRI denials and outcomes after appeal were determined.

Results: There were 682 women with gBRCA1/2 who had screening breast MRIs ordered from 2020 to 2021, including 318 (47 %) BRCA1, 356 (52 %) BRCA2, and 8 (1 %) with both. 73 women (11 %) had an MRI denied. Women insured through Medicaid had the highest rates of denials (2020: 7 %, 2021: 18 %), followed by commercial insurance (2020: 6 %, 2021: 9 %). There were significantly more denials in 2021 compared to 2020 (p = 0.044), and 2021 denials were more likely to be denied on appeal. Of women with denials, 4 (14 %) in 2020 and 5 (11 %) in 2021 did not have a screening MRI performed. One patient with DCIS had an MRI denial prior to diagnosis.

Conclusion: Breast MRI insurance denials were present in 11 % of this high-risk cohort, and 14 % of women with denials did not undergo annual screening. There were significantly more denials in 2021, suggesting worsening barriers for these patients and added burden on providers to appeal for appropriate screening tests.