Who owns denials — and can you audit the work?
Denial ownership is the difference between a claim submission vendor and a revenue-cycle partner. Many proposals bury the distinction. This page defines the operational models, aging thresholds, metrics you must be able to audit, and SLA language worth demanding. For cost-to-collect framing on patient balances, use rcm.today (including cost-to-collect tools where available). Evaluation hub: How to evaluate a billing service. Contact: /#lead.
”Bill and forward” vs true denial management
Bill and forward: staff (or software) submit claims, post payments, and send you a pile of rejects/denials — or write them off under a quiet threshold. Your team still owns the hard work.
True denial management: the biller owns a work queue with aging goals, root-cause coding (why it denied), correction or formal appeal, and reporting you can reconcile to remits.
Ask this exact question:
“For a claim denied with CARC [example], who works it on day 5, day 45, and day 100 — and what shows up on my monthly denial report?”
If the answer is vague, assume bill-and-forward.
Aging thresholds (0–30 / 31–60 / 61–90 / 90+)
Agree on ownership by bucket, not just “we work A/R.”
| Bucket | Typical expectation to define in the SLA |
|---|---|
| 0–30 | Work queue triage; clean resubmits; eligibility/coding fixes |
| 31–60 | Escalation; payer calls / portal status; appeal prep when appropriate |
| 61–90 | Formal appeals; documented next action or recommended write-off with reason |
| 90+ | Explicit disposition plan; no silent parking |
Your specialty and payer mix change the right thresholds — the point is written ownership, not a universal number invented here.
First-pass acceptance vs worked appeals
Do not let one vanity metric hide the other.
- First-pass / clean-claim acceptance: share of claims accepted without reject on initial submission. High first-pass is good; it is not the same as collecting.
- Worked appeals / rework rate: share of denials that receive a documented work action (correction, appeal, or approved write-off) within the SLA.
- Net effect: money in the bank after contractual adjustments — measured by collection metrics below.
A vendor can post a high first-pass rate and still abandon complex denials.
Reports you must be able to audit
Industry RCM metric language is commonly organized around concepts promoted in MAP-style key performance indicator frameworks associated with HFMA (Healthcare Financial Management Association; as of 2026-07-21). Use their educational materials for formal definitions; in plain language you need:
Days in A/R (or A/R days)
How long, on average, balances sit before resolution. Demand the formula (e.g., ending A/R ÷ average daily charges — confirm their exact method) and aging by payer. Without the formula, “we run 28 days” is a slogan.
Net collection rate
Rough idea: collections relative to what was collectible after contractual adjustments (not gross charges). Demand:
- Numerator (what counts as collected)
- Denominator (what was adjusted vs written off as bad debt)
- Time lag (cash vs dates of service)
Misstated net collection rates are a classic sales artifact. See also our blog framing on reading the number honestly (site blog index: /blog/).
Denial rate by CARC
Claim Adjustment Reason Codes (CARCs) appear on electronic remittance (835) advice. The code list is maintained in the X12 ecosystem: X12 Claim Adjustment Reason Codes (as of 2026-07-21). Administrative simplification context: CMS code sets (as of 2026-07-21).
Use code number + short name only — do not paste long proprietary descriptor essays. Example categories practices often track (verify current wording on the official list):
| CARC (examples) | Why ops cares |
|---|---|
| 1 – Deductible amount | Patient liability routing, not always “biller error” |
| 2 – Coinsurance amount | Same |
| 3 – Co-payment amount | Same |
| 4 – Procedure code inconsistent with modifier / other coding | Coding / charge entry review |
| 16 – Claim lacks information | Front-end data quality |
| 18 – Exact duplicate claim/service | Workflow / resubmit discipline |
| 29 – Time limit for filing expired | Timely filing controls |
| 50 – Non-covered services | Benefits / medical necessity / coverage |
| 96 – Non-covered charge(s) | Coverage education |
| 97 – Benefit for this service included in payment/allowance for another service | Bundling / edits |
| 109 – Claim/service not covered by this payer/contractor | Wrong payer / enrollment |
| 197 – Precertification/authorization absent | Prior auth process ownership |
Require a monthly export: CARC, count, dollars, work status, owner. PDF pie charts without export = not auditable.
Write-offs by reason
Separate contractual adjustments from discretionary write-offs. Who approved amounts over $X?
SLA language to demand (examples, not legal advice)
Have counsel adapt language. Operationally, practices often ask for clauses that cover:
- Definition of denial (reject vs denial vs pending) and systems of record.
- Initial work-by date for new denials (e.g., first action within N business days).
- Aging goals by bucket with monthly exception report for 90+.
- Write-off policy with dual control above a dollar threshold.
- Reporting pack delivered by day X each month in CSV/Excel, not only portal screenshots.
- Root-cause feedback to the practice for coding/eligibility patterns above a threshold.
- Audit rights — ability to sample claims and remits against the denial log.
This is not a template contract. It is a checklist of topics that should appear somewhere binding.
How this ties to fees and contracts
- If denial work is out of scope, a low percent-of-collections fee may still leave money on the table — see Fee structures.
- If you cannot leave with your denial history and payer enrollments, you are stuck — see Contract terms.
- Make-vs-buy: In-house vs outsourced.
Practical next steps
- Pull your last 90 days of denials by reason code from your PM system.
- Mark which ones an outsourced team would own under a draft SLA.
- Ask two vendors for a sample redacted denial report in the format you require.
- Model patient-side collection cost on rcm.today.
- Sounding-board (not matching): /#lead.
Editorial guide. Not legal, coding, or compliance advice. CARC examples for education — confirm current codes on X12. Sources checked as of 2026-07-21.