Denial management that starts with the data, not the slogan
Denial rates and the cost of fighting them are both rising in published industry samples. Prevention still beats heroics — but only if you measure first-pass and final denials separately.
Last reviewed against published HFMA, CMS, MGMA, Premier, and related primary sources linked on this page on .
Direct answer
Industry samples in 2025–2026 show higher final denial rates, sharply higher coding-related denials over a multi-year window, and higher cost per claim to adjudicate. Fix front-end eligibility, auth, and coding quality before you hire more appeal staff — then appeal what the data says is winnable. Utilities for letter drafting live on rcm.tools (opens in a new tab), not here.
What the recent numbers say
Final denials. Kodiak Solutions data reported by Fierce Healthcare put hospitals’ median final denial rate at 2.5% in 2024 and 2.7% in 2025, with combined “revenue leakage” figures rising year over year (coverage (opens in a new tab)). The same reporting emphasises growth in clinical denials (auth, medical necessity) relative to purely clerical edits.
Coding-related denials. An HFMA roundtable article citing MDaudit data states that coding-related denials increased 126% over three years, outpacing authorization-related denials (HFMA (opens in a new tab)). That is a hospital/health-system network signal, not a guarantee for your specialty — but it is directionally consistent with what outpatient billing managers describe.
Cost to fight. Premier’s hospital survey put average cost to adjudicate a single claim at $57.23, with total adjudication spend in the sample at $25.7 billion (Premier (opens in a new tab)). Premier also reported that a large share of appealed denials are eventually overturned — which reframes appeal ROI as a capacity problem as much as a legal one.
Operating cost pressure. MGMA’s mid-2025 poll found 90% of medical group leaders reporting higher year-to-date operating costs than 2024 (MGMA (opens in a new tab)). Denial labour competes with every other rising line item.
Common denial cause groups (operational framing)
Eligibility / registration
- Usually owned by
- Front desk + scheduling
- Prevention lever
- Eligibility at scheduling; card-on-file discipline
- Appeal notes
- Often not worth complex appeal — fix the feed
Prior authorization
- Usually owned by
- Clinical ops + billing
- Prevention lever
- Auth required list by payer; lead time
- Appeal notes
- Medical policy citations; deadlines are hard
Coding / CDI
- Usually owned by
- Coding + clinicians
- Prevention lever
- Documentation specificity; modifier hygiene
- Appeal notes
- Coding denials rising in multi-year samples
Timely filing
- Usually owned by
- Billing ops
- Prevention lever
- Worklist aging; secondary claim clocks
- Appeal notes
- Usually lost if the clock is real — prevent only
Medical necessity
- Usually owned by
- Clinician + UM
- Prevention lever
- Payer policy check before service when possible
- Appeal notes
- Highest effort appeals; track overturn rate
This table is operational framing, not a ranked national cause-code study. Pull your top CARC/RARC codes from your own 90-day denial file.
Prevention vs appeal
Prevention moves first-pass clean claim rate and shrinks the denial pile. Appeal recovers a fraction of what already failed, at non-trivial labour cost (opens in a new tab).
A practical split:
- Measure initial vs final denials separately (definitions).
- Rank reason codes by dollars, not count.
- Assign each top code to prevention owner vs appeal owner.
- Set a written dollar floor for appeals and revisit it quarterly.
- Re-check cost-to-collect when denial labour spikes — calculator.
Appeal basics — use rcm.tools for the letter
We do not rebuild an appeal-letter generator here. [rcm.tools](https://rcm.tools) already offers an appeal letter utility alongside BCBS prefix lookup, NPI lookup, and related biller tools. Use those when you need drafting help; use this page for the management arithmetic and the decision to appeal at all.
Common questions
- Are the +126% and 2.7% figures about my specialty?
- Not necessarily. They are published multi-facility samples (MDaudit via HFMA; Kodiak via trade press). Use them as pressure signals, then pull your own reason-code dollars.
- Should we appeal every denial?
- No. Use a dollar floor, track overturn rates, and spend scarce labour where recovery exceeds cost. Premier’s high overturn share is an argument for selective capacity — not for appealing everything.
- Where do I get appeal letter help?
- rcm.tools — not this domain.
Sources
- Reshaping revenue cycle strategy (HFMA roundtable; MDaudit-sponsored) (opens in a new tab) — HFMA / MDaudit-cited data
- Despite better cash flow, providers missed out on more revenue in 2025 due to increased payer denials (opens in a new tab) — Fierce Healthcare (reporting Kodiak Solutions data)
- Premier: claims adjudication costs providers $25.7 billion (opens in a new tab) — Premier Inc.
- MGMA Stat: medical practice operating costs still rising in 2025 (opens in a new tab) — MGMA
- HFMA MAP Keys — industry-standard revenue cycle KPIs (opens in a new tab) — HFMA
Last reviewed against published HFMA, CMS, MGMA, Premier, and related primary sources linked on this page on .
Every benchmark and formula on this page is sourced and dated above. Where a figure is a range, the range is the honest answer, not a hedge. If you think something here is wrong or out of date, tell us — corrections are logged and dated.