Based on an analysis of transparency data released by the Centers for Medicare and Medicaid Services (CMS), this brief assess claims denials and appeals among issuers offering individual market coverage on healthcare.gov and finds that 17% of in-network claims were denied by issuers in 2019, with denial rates for specific issuers varying significantly around this average, from less than 1% to more than 50%. Consumers appealed less than 1% of denied claims.
