Blue Cross Blue Shield of Michigan — Denial Rates & Appeal Data
Compare against every insurer we track: denial rates ranked within reporting cohorts.
COVERAGE RIGHTS ROLLUP · CALCULATED FROM BLUE CROSS BLUE SHIELD OF MICHIGAN PUBLIC DISCLOSURES
Medicare Advantage rollup computed from BCBSM's posted counts for Medicare Plus Blue PPO and BCN Advantage (standard requests). About 6.5% of denials were appealed — and 88.9% of those appeals succeeded. Individual/marketplace plans reported separately (6.3–6.6% denial). Affiliate Blue Cross Complete (Medicaid) reported a 34.9% standard denial rate.
UNDERLYING SOURCE: BLUE CROSS BLUE SHIELD OF MICHIGAN CMS-0057-F DISCLOSURE, CY2025 · VIEW SOURCE ↗ · METHODOLOGY
What these numbers mean for your denial
Coverage Rights calculated a 4.3% prior-authorization denial rate for the Medicare Advantage PPO and HMO contracts in 2025. In the calculated Medicare Advantage PPO and HMO contracts appeal scope, 88.9% were reversed — most denials that got challenged did not survive review. The underlying contract or plan figures were published by Blue Cross Blue Shield of Michigan; Coverage Rights performed the stated rollup.
The practical takeaway is narrower: an initial denial can change on review. These aggregate rates describe past decisions within the stated reporting scope; they do not predict the result of an individual appeal.
Your appeal deadline depends on your plan type
Blue Cross Blue Shield of Michigan runs several kinds of plans, and the appeal rules follow the plan, not the insurer. Find the ladder and the deadlines for yours:
Common questions
What is Blue Cross Blue Shield of Michigan's prior authorization denial rate?
Coverage Rights calculated a 4.3% prior-authorization denial rate for the Medicare Advantage PPO and HMO contracts reporting scope in 2025, using the public disclosure required by federal rule CMS-0057-F. Within the calculated Medicare Advantage PPO and HMO contracts appeal scope, 88.9% were overturned.
How do I appeal a Blue Cross Blue Shield of Michigan denial?
Start with the appeal instructions in Blue Cross Blue Shield of Michigan's denial notice. An independent external, fair-hearing, or Medicare review may be available after the required internal review, but eligibility depends on the coverage program, plan funding, denial type, regulating jurisdiction, and whether the notice says internal review is exhausted. Use the pathway tool before choosing the next reviewer.
Where do these numbers come from?
Coverage Rights calculated the displayed rollup from Blue Cross Blue Shield of Michigan's public CMS-0057-F disclosures for 2025. The methodology note identifies the included reporting scope and weighting or aggregation method; source links lead to the underlying insurer-published records.