Got the denial letter today? You have 180 days. 80% of appealed prior-auth denials are overturned — fewer than 1% try. See your 30-minute plan →

Patient Evidence · United States

· · 11 min read

Denied for Zepbound, IVF, or a $34K surgery bill? Appeal it this weekend.

80% of appealed prior-auth denials are overturned. Fewer than 1% of patients try. Counterforce Health drafts the appeal letter free in minutes. The reason most appeals still lose is the same reason Cigna can deny 300,000 claims at 1.2 seconds each: nobody can prove what their portal said. ProofSnap is the $4.99 evidence layer that fixes that.

Chrome Web Store verified · Captures stay on your device · Only a SHA-256 hash leaves your browser

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FRE 901(b)(9) admissible · All 50 states
Quick Answer US 2026 · Updated May 18, 2026

How to appeal a US health insurance denial in 2026

To appeal a denied health insurance claim in the United States, follow five steps: (1) read the denial letter and identify the appeal deadline — 180 days for ACA marketplace and Aetna / BCBS / Cigna / Premera commercial plans, 65 days for UnitedHealthcare, 60 days for Humana and all Medicare Advantage plans; (2) request your full medical records and prior-authorization correspondence under HIPAA right of access (45 CFR 164.524); (3) draft the appeal letter using a free AI tool such as Counterforce Health (~70% reported overturn rate, University of Pennsylvania / NIH funded); (4) attach court-admissible authenticated evidence of the portal page, EOB, and prior-auth approval — a plain phone screenshot is not enough under Federal Rules of Evidence 901(a); (5) submit the internal appeal, then escalate to external review (IRO) within 4 months if denied.

80%

Of appealed prior-auth denials overturned (CMS, AMA)

<1%

Of denied ACA claims ever appealed (KFF 2024)

180

Days for ACA internal appeal deadline

$4.99

SnapPack: 10 forensic captures, no subscription

Jump to: your stage · deadlines by insurer · 30-minute action plan · documented cases · FAQ

Which stage of the fight are you in?

ProofSnap is not your appeal letter. It is the evidence layer that makes the appeal win.

Find your situation below. The right next step depends on which fight you are actually in.

Stage 1 First denial

"I just got my first denial letter."

Start with the free AI tool that drafts the appeal letter for you. Then capture the denial letter, prior-auth approval, and portal status with ProofSnap so the insurer cannot quietly change the record while you wait for the IRO review.

  • 1.Counterforce Health — free appeal letter in ~60 seconds
  • 2.SnapPack the portal + denial letter ($4.99)
  • 3.Attach the timestamped ZIP to your appeal
See the 30-minute plan
Most painkiller-fit
Stage 2 Already burned

"I lost my appeal — and the portal looks different now."

This is exactly what ProofSnap was built for. Insurers change portal content, archive prior-auth letters, and edit chat transcripts. Your screenshot is not enough for an IRO or bad-faith case. You need authenticated, blockchain-timestamped evidence to escalate.

  • IRO external review (4-month window)
  • State insurance commissioner complaint
  • ERISA / bad-faith lawsuit evidence
Get SnapPack — $4.99
Stage 3 Professional

"I work on appeals for clients."

Patient advocate, claims advocate, ERISA / bad-faith / malpractice attorney, or healthcare power-of-attorney. With written client authorization you have the same record-access rights as the patient. Subscription plans cover unlimited client captures with full chain-of-custody for litigation.

  • ·BCPA-certified patient advocates
  • ·ERISA / bad-faith plaintiff firms
  • ·Medical malpractice plaintiff side
See Professional / Enterprise pricing

Not sure? If you have not yet appealed, start with Counterforce Health (free) for the letter and SnapPack ($4.99) for the evidence. If your first appeal failed, ProofSnap captures are the difference between losing the IRO and winning it.

Documented US cases — not hypotheticals

When the portal forgets, the patient pays — sometimes with their life

Seven cases from federal court filings, ProPublica investigations, and major US outlets. Each one ends with a patient who could not prove what the insurer or chart said before it changed. Each is exactly the failure mode a $4.99 SnapPack closes.

Cigna PXDX — 300,000 claims denied in two months

ProPublica, March 2023

Cigna's PXDX ("procedure-to-diagnosis") system let company doctors deny claims in batches with electronic signatures — on average 1.2 seconds per claim, never opening a file. One medical director, Dopke, rejected 121,000 claims in two months. Class actions filed in California and Connecticut have been allowed to proceed.

UnitedHealth nH Predict — AI cut off elderly nursing-home patients

Estate of Lokken v. UnitedHealth Group, D. Minn., 2023–present

A federal class action alleges UnitedHealth used the nH Predict algorithm to override physician recommendations and cut Medicare Advantage post-acute care short. Internal data shows over 90% of appeals were overturned — but the insurer relied on the fact that only ~0.2% of patients ever appeal. In March 2026 a federal magistrate ordered broad discovery into the AI denial pipeline.

EviCore "the dial" — denials sold as 3-to-1 ROI

ProPublica + Capitol Forum, November 2024

EviCore (Evernorth/Cigna) screens prior-auth requests for Cigna, UnitedHealthcare, Aetna and Blue Cross plans covering 100 million Americans. Internal documents describe an algorithm called "the dial" tuned to increase the denial rate by 15%. ProPublica documented 30 inappropriate cancer denials traced to outdated guidelines.

Aetna medical director: "I never read the records."

Washington v. Aetna (CA), 2018 deposition

Dr. Jay Iinuma, Aetna's medical director for Southern California 2012–2015, testified under oath that he never reviewed patients' medical records when deciding to approve or deny care — he relied entirely on nurses' summaries. The case was brought by 23-year-old Gillen Washington, denied IVIG infusions for a rare immune disorder. California's insurance commissioner opened a state-wide investigation; Aetna settled before trial.

Nataline Sarkisyan, 17 — died hours after Cigna reversed the denial

December 2007, Glendale CA

Cigna denied coverage for a liver transplant Nataline's doctors at UCLA Medical Center said was medically necessary after complications from a bone-marrow transplant. After public pressure and a nurses-union protest, Cigna reversed the decision on Dec 20, 2007. Nataline died a few hours later, before surgery could be performed. The family's wrongful-death suit reshaped the US health-reform debate.

Chris McNaughton — "we're still gonna say no"

McNaughton v. UnitedHealthcare, E.D. Pa. 2021–2023

A Penn State student with crippling ulcerative colitis sued UnitedHealthcare after it refused to cover the Mayo Clinic-prescribed regimen finally working for him. Discovery surfaced internal emails and a tape-recorded employee call — one UHC nurse said on the call "we're still gonna say no" despite the treating physician's instructions. UnitedHealthcare settled within weeks of ProPublica publishing the story.

Eric Tennant, West Virginia dad — approval came after he was too sick to receive it

KFF Health News + West Virginia Watch, 2024–2025

Tennant, 58, a coal-mining safety instructor from Bridgeport, West Virginia, was diagnosed in early 2025 with a rare bile-duct cancer. His doctors recommended histotripsy — a $50,000 non-invasive ultrasound tumor ablation. His insurer, the state Public Employees Insurance Agency (administered by UnitedHealthcare), repeatedly denied coverage as "not medically necessary." The carrier reversed course in May 2025 only after KFF Health News and NBC News submitted questions, but by then Tennant had deteriorated past the point of being a candidate. He died on September 17, 2025. In 2026 West Virginia's governor signed a prior-authorization reform law citing his case.

What every one of these cases has in common

The insurer controlled the record of what happened. The patient did not.

Every case above turned on what the portal, the denial letter, the chart, or the phone call said at the time — and on whether the patient or their estate could prove it later. In each one, the insurer was the sole custodian of that record. Discovery, depositions, ProPublica investigations and class-action subpoenas eventually surfaced the truth — but only for the rare patient with attorneys willing to fight for years.

A $4.99 SnapPack at the moment of the original portal interaction — the prior-auth approval, the EOB, the chat transcript, the visit summary — gives you a copy the insurer cannot edit, archive, or "forget." Bitcoin-blockchain-timestamped. SHA-256 hashed. Independently verifiable. Self-authenticating under FRE 902(13)/(14).

Become your own record custodian — SnapPack $4.99

Don't miss the deadline — it forecloses the appeal

Health insurance appeal deadlines by insurer (US 2026)

Missing the internal-appeal deadline waives your right to escalate. Deadlines vary sharply by carrier and plan type — check the denial letter for the exact date and confirm in your member handbook.

Insurer / Plan Internal appeal deadline External review (IRO) deadline Notes
ACA Marketplace (HealthCare.gov) 180 days from denial 4 months after internal denial Federal floor; some plans grant more time
Aetna (commercial) 180 days 4 months Urgent care: 72-hour expedited
Anthem / Blue Cross Blue Shield 180 days 4 months Plan-specific variations by state
Cigna (commercial) 180 days 4 months EviCore prior-auth screening — capture early
UnitedHealthcare 65 days (much shorter) 4 months All plan types; nH Predict / NaviHealth screening
Humana (commercial & MA) 60 days 4 months Tighter than ACA floor
Molina Healthcare 60–180 days (plan/state-dependent) State fair-hearing process ~24% denial rate, highest among major plans
Medicare Advantage (all insurers) 60 days for reconsideration Five-level CMS process ~80% of appeals overturned (HHS OIG)
Medicaid 60–90 days (varies by state) State fair-hearing Check state-specific managed-care rules
ERISA (employer-sponsored) 180 days Federal court after admin appeal 29 CFR 2560.503-1; LTD plans on similar timeline
No Surprises Act (surprise bill) 120 days for IDR dispute Independent Dispute Resolution $400+ over Good Faith Estimate triggers

Sources: ACA Section 2719 · 29 CFR 2560.503-1 (ERISA) · CMS Medicare Advantage appeal rules · Muni Health 2026 deadline summary · KFF 2024 analysis. Confirm your denial letter and plan documents for the exact deadline applicable to your case.

Decode your denial letter

Common US health insurance denial reason codes — meaning, appeal odds, and evidence checklist

Every denial letter cites a Claim Adjustment Reason Code (CARC) such as CO-50 or CO-197. The code dictates how appealable the denial is and which evidence will overturn it. Find your code below.

Code Meaning Appeal odds Evidence that wins
CO-50 "Not medically necessary" — most common appealable denial. Insurer disputes clinical justification. High — 60–80% overturned Treating-physician letter citing clinical guidelines (AGA/ASCO/ACS/FDA labeling), peer-reviewed studies, contemporaneous MyChart notes
CO-197 Prior authorization missing — insurer says no PA was filed or it was denied. Very high if PA exists — 80%+ Authenticated screenshot of the original PA approval letter, portal status timeline, reference number, prescriber's PA submission record
CO-167 Diagnosis not covered — ICD-10 code does not match the plan's coverage criteria. Medium Formulary exception request, alternative diagnosis documentation, medical-necessity letter for off-label use
CO-204 Service / drug not covered under plan — plan exclusion. Hardest category to appeal. Low — pursue benefit-design challenge or state external review Plan documents showing ambiguity, state mandate that overrides exclusion (e.g. IVF mandates in NY/MA/IL), ERISA fiduciary breach
CO-95 Plan procedures not followed — often a missing referral or out-of-network without authorization. Medium Referral documentation, network-status screenshot as of date of service, No Surprises Act protection if emergency or in-network facility
CO-29 Time limit for filing has expired — claim filed after timely-filing deadline (typically 90–365 days from date of service). Low — procedural, but appealable with cause Proof of original submission attempt, provider's good-faith effort, evidence of insurer system outage, eligibility-coverage delay
CO-16 Claim lacks information — most commonly a missing modifier, NPI, or supporting documentation. Very high — usually resubmit Resubmit with corrected fields; capture original claim and denial to track downcoding patterns
CO-22 Coordination of benefits — insurer claims another payer is responsible (e.g. spouse's plan, Medicare primary). Medium COB questionnaire, proof of insurance hierarchy, EOB from other payer showing it does not cover
PR-1 / PR-2 / PR-3 Patient responsibility (deductible / coinsurance / copayment) — routine, not technically a denial. N/A — if itemized bill error, dispute the billing Itemized line-item CPT/HCPCS bill, network-rate verification, Good Faith Estimate, No Surprises Act IDR if surprise bill
N115 / N390 (RARC) Local / National Coverage Determination — Medicare-specific. Procedure excluded by LCD/NCD. Medium — Medicare-specific appeal Medicare LCD/NCD policy text, off-coverage justification, specialist letter, 5-level Medicare appeal pathway

Sources: X12 / WPC Edit Master CARC & RARC code list · CMS Medicare Claims Processing Manual · X12.org reason codes. Your denial letter typically includes both a CARC (CO/PR) and a RARC (N/M) code — cite both verbatim in your appeal letter.

Got denied today?

Your next 30 minutes — from denial letter to appeal filed

A weekend-doable plan combining ProofSnap (evidence) with a free AI appeal tool (Counterforce Health). Total cost: $4.99. Total time: ~30 minutes once you have your denial letter.

  1. 1

    Install ProofSnap & buy SnapPack

    ~3 min · $4.99

    Chrome Web Store → Add to Chrome → pay inside the extension. Card required at checkout (standard Stripe).

  2. 2

    Capture 4 pages in your insurer portal

    ~7 min · 4 captures

    (a) Denial letter with full reason codes · (b) Original prior-auth approval (if any) · (c) EOB / claim detail page · (d) MyChart visit summary linked to the denied service. Each capture = one forensic ZIP.

  3. 3

    Open Counterforce Health (free)

    ~10 min · $0

    Upload your denial letter PDF + your insurance policy document. The AI analyzes both and drafts a customized appeal letter citing the specific clinical criteria. Mayo Clinic experts published this workflow; Counterforce reports ~70% overturn rate.

  4. 4

    Review & customize the AI-drafted appeal

    ~8 min

    AI can hallucinate medical details — double-check every clinical claim against your actual records. Add a paragraph in your own voice describing daily impact.

  5. 5

    Send the appeal — with your ProofSnap ZIPs attached

    ~2 min

    Email or upload to your insurer's appeal address (listed on the denial letter). Reference the ZIP filenames in your letter: "Exhibit A — prior-authorization approval, captured [date] with cryptographic timestamp verifiable at opentimestamps.org." The insurer cannot disclaim what your blockchain timestamp proves was on their portal.

After you file: federal ACA rules require the insurer to decide within 30 days (pre-service) or 60 days (post-service). Urgent care: 72 hours. If denied again, you have 4 months to request an external IRO review — reuse the same captures. If you have an active treatment that cannot wait: file the urgent appeal AND start the IRO request in parallel — federal rules allow it.

Start step 1 — SnapPack $4.99

Fighting an ongoing multi-month case (multiple appeals, IRO, bad-faith)? See which plan.

From zero to first portal capture — under 2 minutes

No technical skills required. No advocate fees. Just 3 clicks.

ProofSnap workflow for capturing patient portal evidence: click extension, capture MyChart or EOB page, download forensic ZIP package, verify with Trust Verifier

What happens after you click

From click to your first portal capture: under 2 minutes

  1. 1 Chrome Web Store opens · click "Add to Chrome"
  2. 2 Pay $4.99 inside the extension
  3. 3 Open MyChart, your EOB page, or insurer portal and click the icon
  4. 4 Download your forensic ZIP · attach to your appeal letter or send to your advocate

Capture this evidence today. The portal can change tomorrow.

Insurance portals are dynamic. Approval statuses change. EOBs get updated. Prior-auth letters get archived. What the portal said in March may not be what it says in June. Capture first. Decide later whether you'll need it.

Your US patient evidence checklist:

Urgent care? Pre-service and concurrent-care appeals must be decided within 72 hours under federal rules. Capture the denial letter and your provider's medical-necessity statement before filing — the appeal clock does not stop while you gather evidence. Authenticated captures attached to your appeal letter close the loop in one shot.

Do the math:

$0
Recovered without an appeal
$4.99
SnapPack (10 captures)
$1K–$50K+
A single denied GLP-1, IVF cycle, or out-of-network bill

A patient advocate charges $75–$200/hour. A bad-faith attorney charges $300+/hour. ProofSnap: $4.99 one-time.

Get SnapPack — $4.99, capture tonight

Install takes 30 seconds. First capture in under 2 minutes.

The 2026 healthcare reality

Insurance AI denies you. Patient AI appeals for you. Both need the same thing: authenticated source documents.

2024–2026 saw an explosion of AI tools on both sides — nH Predict, EviCore, Optum on the insurer side; Counterforce Health, Claimable, and ChatGPT workflows on the patient side. The bottleneck is no longer drafting appeal letters. It is feeding those tools authenticated, timestamped evidence the insurer cannot disclaim.

The insurer side

  • Algorithmic prior-auth denials within seconds — nH Predict (UnitedHealth), EviCore, Optum. Class actions allege denials without human review.
  • Portal status changes from "Approved" to "Pending" without notification
  • Aggressive log retention policies — member-services chat transcripts archived within weeks
  • 20% of ACA claims denied in 2023 (KFF). 73 million denials in a single year.

The patient side

  • Counterforce Health — free AI appeal generator, 70% reported overturn rate (University of Pennsylvania + NIH funded)
  • Claimable — AI-generated personalized appeals, ~$40 flat fee per appeal
  • ChatGPT / Gemini workflows — Mayo Clinic experts publish prompt templates patients copy
  • All three need the same thing: the original denial letter, prior-auth approval, EOB and portal correspondence — authenticated so they cannot be disputed

Where ProofSnap fits

The evidence layer your AI appeal tool is missing

1

Capture with ProofSnap

SnapPack each portal page, denial letter, EOB, prior-auth approval. Each ZIP is sealed with SHA-256 + Bitcoin blockchain timestamp.

2

Feed text to your AI tool

Paste the evidence.pdf and EOB content into Counterforce, Claimable, or ChatGPT. AI generates the appeal letter in under a minute.

3

Attach the ZIPs to the appeal

The AI-written letter cites authenticated exhibits. The IRO reviewer sees timestamped evidence that the insurer cannot claim "was edited" or "never said that."

Important caveat for AI tools: ChatGPT and most general-purpose AIs are not HIPAA-compliant. Strip identifiers before pasting, or use a purpose-built privacy-oriented tool like Counterforce Health. ProofSnap captures stay on your device — no PHI ever leaves your browser regardless of which AI tool you pair with.

When the chart changes

"My doctor amended the chart after I complained."

The single most common red flag in patient-side malpractice cases. EHR audit trails (Epic, Cerner, MEDITECH, athenahealth) record who-changed-what-when — but your independent capture is what proves the original content the chart said before the amendment.

The risk

  • Providers can "supplement" charts via HIPAA-compliant amendment process — properly dated, it is legal.
  • Undated, post-incident changes — the kind that hide an error — are spoliation, with severe sanctions.
  • Once juries see a chart alteration, credibility collapses — verdicts up to $20M have followed.
  • But proving alteration requires comparing the current chart to what the chart said earlier — that is your job.

The defense

  • Capture MyChart the day of every visit — visit summary, plan of care, medications, vital signs, lab orders.
  • Your ProofSnap timestamp is independently verifiable on the Bitcoin blockchain — the provider cannot dispute when you captured.
  • If the chart later differs from your capture, your attorney can demand the EHR audit trail and prove spoliation.
  • Spoliation triggers adverse-inference jury instructions — the jury is told to assume the alteration was unfavorable to the defense.

Practical rule: if you experienced anything that could become a complaint — a missed diagnosis, an adverse drug reaction, a procedure complication, an unexplained handover — SnapPack your MyChart visit summary the same day. You do not have to decide whether to act. You just have to preserve the option. Once the chart is amended, recovery of the original content requires litigation discovery and an expensive expert witness.

Which denial or dispute are you fighting?

Nine high-cost patient scenarios where authenticated capture is the difference

Each row maps a common dispute type to the specific portal pages, letters, and visit recordings that win appeals, IRO reviews, and bad-faith cases.

GLP-1 / Obesity meds

Zepbound, Wegovy, Mounjaro, Ozempic denials

60–80% of appealed GLP-1 denials are overturned (rising to ~85% with strong medical documentation). The bottleneck is documented weight history and lifestyle-intervention evidence.

What to capture:

  • MyChart weight history (6–12 months minimum)
  • Nutritionist visit notes, gym membership records, documented diet program logs
  • Prior-auth request submitted by your prescriber + the denial reason codes
  • Peer-to-peer review call (Video SnapPack) — your prescriber's voice arguing medical necessity is powerful at IRO level
IVF / Fertility

IVF cycle, egg freezing, and fertility-preservation denials

A single denied IVF cycle is $15K–$30K out of pocket. Coverage rules differ wildly by state mandate and employer plan.

What to capture:

  • Summary of Benefits and Coverage (SBC) section on fertility
  • Pre-treatment quote vs. final EOB — gaps prove bait-and-switch
  • State-mandate citations (IL, MA, NY, NJ, RI and others) attached to your appeal
  • Member-services chat transcripts (each reference number captured with timestamp)
Gender-affirming care

Hormone therapy, surgery, and mental-health letter denials

Coverage continues to shift state-by-state. WPATH-aligned medical-necessity documentation routinely wins appeals when properly authenticated.

What to capture:

  • Mental-health provider letters of medical necessity
  • Plan documents and SBC sections that explicitly cover or exclude the procedure
  • Discriminatory denial reason codes (cited verbatim in your appeal)
  • State insurance commissioner / OCR complaint references
Transplant / Specialty

Transplants, biologics, oncology, rare-disease therapy

High-dollar denials draw the most aggressive insurer pushback — and the highest IRO overturn rates (78% for oncology with proper documentation).

What to capture:

  • NCCN / clinical-guideline citations matching your diagnosis and stage
  • Pathology / lab portal screenshots proving the indication
  • Specialty-pharmacy approval & ship records vs. payer denial
  • External review (IRO) request packet — everything pre-bundled and timestamped
No Surprises Act

Surprise bills, balance billing, ER out-of-network

If your final bill exceeds your Good Faith Estimate by $400+, you have 120 days to file Independent Dispute Resolution.

What to capture:

  • Good Faith Estimate (with date and provider signature/timestamp)
  • Final EOB and itemized statement
  • Insurer network-status page on the date of service (proves the facility was in-network even if the anesthesiologist was not)
  • Any signed (or unsigned) consent-to-balance-billing form
Telehealth disputes

Misdiagnosis, refused referral, prescription errors

~65–70% of telemedicine malpractice cases involve misdiagnosis. Most telehealth platforms purge chat logs and recordings within days.

What to capture (Video SnapPack):

  • The visit itself: video, audio, chat (legality depends on your state — see consent map below)
  • Post-visit summary in MyChart and the provider's clinical note (often inconsistent with what was said)
  • Prescription / refill history and any refused referral records
  • Discharge / aftercare instructions presented at the end of the visit
Disability / LTD

Long COVID, ME/CFS, fibromyalgia, chronic pain LTD denials

LTD carriers (Unum, Hartford, MetLife) routinely deny subjective-symptom claims for "lack of objective evidence." ERISA appeals run on 180-day clocks — documentation density wins.

What to capture:

  • MyChart daily symptom logs and patient-reported outcomes (PROMIS scores)
  • Specialist evaluations: infectious disease, pulmonology, cardiology, neuropsychology — both clinical notes and portal messages
  • CPET / two-day cardiopulmonary exercise test results (objective evidence of post-exertional malaise)
  • LTD insurer portal communications — every "request for additional information" timestamped
ER misdiagnosis

Wrong diagnosis, premature discharge, missed stroke / sepsis / MI

Pre-formatted ED discharge templates routinely print the wrong diagnosis. ~40% of patients misunderstand discharge instructions — and the printed paper is the document the hospital points to.

What to capture (same day — before any amendment):

  • MyChart "ED visit summary" page exactly as printed — diagnosis, instructions, prescriptions, follow-up
  • Triage notes, vital sign trend, ordered/reviewed labs (CBC, troponin, lactate, CT/MRI report)
  • The ED physician's note — especially the differential diagnosis section
  • If you returned within 72 hours with a worse condition: the second visit's record proves the missed diagnosis
Mental health & Workers' comp

Therapy records disputes, workplace-injury denials

State workers' comp portals (CA EAMS, NY eClaims, VA WebFile, federal SEAPortal) and behavioral-health platforms (TheraNest, SimplePractice, BetterHelp) follow the same purge pattern as health portals.

What to capture:

  • Workers' comp filing portal status pages, claim number, EAMS / WebFile / SEAPortal correspondence
  • Therapy session notes you can view in your portal, especially differing from your recollection
  • HR communications and employer accident-report forms (often handed to you in workplace portal)
  • Independent Medical Examination (IME) request letters and any "denial of further treatment" notifications

Insurers count on you not appealing. The numbers say you should.

Capture Evidence — SnapPack $4.99

What 2026 US health-insurance appeal data actually shows

The framework rewards appealing. The failure mode is having no preserved record of what the insurer said.

80%

Medicare Advantage appeal overturn rate — CMS / HHS-OIG data shows roughly 80% of appealed prior-authorization denials are partially or fully overturned. The denial rate has been rising but appeal overturn rates remain high — meaning the majority of initial denials are wrong on the merits.

Source: HHS Office of Inspector General OEI-09-19-00350.

44%

ACA internal appeal success rate — KFF analysis of 2023 ACA marketplace data shows fewer than 1% of denied claims were appealed; of those that were, 44% of internal appeals overturned the denial. The system rewards persistence backed by evidence.

Source: KFF, "Claims Denials and Appeals in ACA Marketplace Plans in 2024."

82%

Of prior-authorization denials overturned 2019–2023 — nearly 82% of prior-authorization denials in this window were partially or fully overturned upon appeal. The bottleneck is patients not having authenticated evidence of the original approval or the denial reason codes.

Source: KFF, prior-authorization appeals analysis 2024.

49–80%

Of US medical bills contain errors — industry studies from Medical Billing Advocates of America and patient-advocate organizations estimate 49–80% of medical bills contain at least one error, with up to 8 in 10 hospital bills affected. Itemized statements captured with timestamps are the foundation of every dispute.

Source: Medical Billing Advocates of America; Patient Advocate Foundation.

Why your iPhone screenshot is not enough for an IRO or bad-faith case

Independent Review Organizations, ERISA appeal panels, state insurance commissioners, and bad-faith litigators look for the same authentication that federal courts require under FRE 901(a). A bare PNG file does not pass the test.

Your phone screenshot

  • No independent timestamp — EXIF can be edited
  • Fabricated in 30 seconds with Inspect Element
  • No URL verification, no HTML source
  • No chain of custody documentation
  • Insurer can claim the page "never said that"
  • May require expert witness ($5K–$15K) to authenticate

ProofSnap evidence package

  • OpenTimestamps blockchain anchor (Bitcoin)
  • SHA-256 hash — any tampering detected instantly
  • Full metadata: URL, IP, headers, TLS certificate, cookies
  • Forensic log + chain of custody documentation
  • Up to 15 forensic files per capture (plan-dependent)
  • Meets FRE 901(b)(9) process authentication
  • Self-authenticating under FRE 902(13) + 902(14)

Legal basis: FRE 901(a) authentication · FRE 901(b)(9) process authentication · FRE 902(13) certified records of an electronic process · FRE 902(14) certified digital data · 45 CFR 164.524 HIPAA right of access

The HIPAA question every patient asks

"Am I allowed to do this?"

Short answer: yes. HIPAA regulates providers, plans, and clearinghouses — not patients capturing their own records for their own use.

You are the data subject

HIPAA's privacy and security rules apply to "covered entities" (hospitals, doctors, insurers, clearinghouses) and their "business associates." When you log into MyChart as the account holder, you are capturing your own information for your own use. HIPAA does not regulate that.

Under 45 CFR 164.524, you have an explicit federal right to access your own records.

Your data stays on your device

ProofSnap captures everything client-side in your Chrome browser. The screenshot, HTML, metadata, and forensic ZIP never leave your computer.

The only data sent to a ProofSnap server is the SHA-256 hash of your evidence file — a non-reversible cryptographic fingerprint forwarded to OpenTimestamps for blockchain anchoring. The hash is not PHI; it cannot be reversed to recover the original content.

Patient advocates & attorneys

With your written HIPAA authorization — or as your designated "personal representative" under HHS guidance — a patient advocate, claims advocate, healthcare power-of-attorney holder, or plaintiff-side attorney has the same access rights as you.

They do not become a HIPAA "business associate" simply by helping you. BA status applies to vendors of covered entities, not patient-side representatives.

FRE 901 & 902 self-authentication

FRE 901(b)(9) allows authentication through "evidence describing a process or system and showing that it produces an accurate result." SHA-256 + OpenTimestamps + chain of custody is exactly that.

FRE 902(13) certifies records of an electronic process. FRE 902(14) certifies data taken from an electronic system. ProofSnap's package was designed against these standards.

Bottom line: capturing your own portal pages, EOBs, and visit summaries is something every patient is legally entitled to do. Doing it with cryptographic timestamps is what turns "I remember it said approved" into evidence that wins an appeal. This page is general information, not legal advice — consult a licensed attorney in your state for your specific case.

Can I record my telehealth visit or peer-to-peer review?

US recording-consent map — one-party vs. all-party states

Recording a phone or video conversation is governed by state wiretap statutes. 38 states + DC let you record with only your own consent. Approximately 11–13 states require all parties to consent (the list varies by interpretation of mixed-rule states).

One-party-consent (38 states + DC)

You can legally record your own telehealth visit or peer-to-peer call without notifying the provider or insurer. Best practice: still ask first — but legally you are covered.

States: AL, AK, AZ, AR, CO, CT (mostly one-party for in-person), DC, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NV, NJ, NM, NY, NC, ND, OH, OK, RI, SC, SD, TN, TX, UT, VT, VA, WV, WI, WY.

All-party-consent (~11–13 states)

Both parties must consent. Ask the provider before clicking record, and capture their verbal consent on the recording itself. Most platforms (Zoom for Healthcare, Doxy.me) display an in-app consent banner that satisfies the rule.

States: California, Delaware (mixed), Florida, Illinois, Maryland, Massachusetts, Michigan, Montana, New Hampshire, Oregon, Pennsylvania, Washington. Connecticut and Nevada have mixed/conditional rules depending on context.

Even in all-party states, the screen content itself — chat messages, displayed clinical notes, slide decks during peer-to-peer review — can typically be captured without recording consent because it is information shown to you, not a conversation. Video SnapPack handles both modes (with or without audio). Always confirm specifics with a licensed attorney in your state.

For your patient advocate or attorney

What your advocate sees when you hand them the ZIP

You do not have to explain blockchain timestamps or SHA-256 hashing. The evidence package speaks for itself in the language your advocate or attorney already uses every day.

Plain-English summary your advocate will recognize immediately:

Forensic evidence package per capture

Up to 15 files: screenshot, full HTML, DOM snapshot, PDF report, metadata JSON, forensic log, chain of custody, signed manifest, capture video (Enterprise).

Meets FRE 901(b)(9) process authentication

"Evidence describing a process or system and showing that it produces an accurate result." Citable in an appeal letter, IRO submission, or bad-faith complaint.

Self-authenticating under FRE 902(13) + 902(14)

Certified records of an electronic process and certified digital data can be admitted without a live forensic expert — saving $5K–$15K in expert-witness fees.

Independently verifiable blockchain timestamp

OpenTimestamps anchors the SHA-256 hash to Bitcoin. Anyone can verify the timestamp at opentimestamps.org — no ProofSnap involvement needed.

Hand your advocate this exact sentence:

"This is a forensic capture package with SHA-256 hashing, OpenTimestamps blockchain anchoring, and a chain of custody document. It is designed to meet FRE 901(b)(9) process authentication and self-authenticate under FRE 902(13) and 902(14). The evidence.pdf and manifest.json contain everything you need for the internal appeal, IRO submission, or bad-faith complaint."

Start capturing your evidence today

One-time $4.99. No subscription. Use tonight.

Built for patients in the middle of a denial, not a compliance department. Buy once, capture 10 portal pages, attach the ZIP to your appeal letter.

Recommended for one denial
$4.99 one-time

SnapPack — 10 forensic captures

  • No subscription. Pay once, done.
  • Credits never expire. Use them tonight or next month.
  • Forensic ZIP per capture — screenshot, HTML, metadata, SHA-256 hash, blockchain timestamp
  • FRE 901(b)(9) admissible — all 50 states, IROs, ERISA panels
  • Card required at checkout — standard Stripe payment
Install & Buy Now →

Chrome · Edge · 30-second install

10 captures = prior-auth letter, denial letter, EOB, itemized bill, MyChart notes, GFE, member-portal chats — covers the entire emergency checklist.

HIPAA-clear — you are the data subject
Captures stay on your device
No insurer login required

Video SnapPack

For telehealth visits, peer-to-peer reviews, MyChart walkthroughs

Record the entire browser window with audio — Zoom for Healthcare, Doxy.me, Teladoc, Amwell, Cigna / UnitedHealthcare / Aetna member portal calls — sealed with cryptographic timestamps.

  • Up to 30 minutes per video (Enterprise)
  • Audio + screen + chat in one .webm container
  • Each video sealed with SHA-256 hash + blockchain timestamp
  • Bundled eIDAS qualified credits for extra-strong stamping

Recording is governed by state wiretap statutes — see the one-party / all-party map above before pressing record.

Not sure which is right for you?

ONE DENIAL

Single denied claim or pre-auth. 5–10 documents → SnapPack $4.99

TELEHEALTH / CALLS

Recording a telehealth visit or peer-to-peer. 1–3 videos → Video SnapPack $24.99+

ONGOING CASE

Multi-month appeal / advocate work. 20+ captures → Essential $8.99/mo

For patient advocates, ERISA / bad-faith attorneys, and multi-month cases

Monthly subscriptions — unlimited captures, full chain-of-custody

7-day free trial (credit card required, cancel anytime) · Annual saves ~20%

Essential

$8.99/mo

100 captures/month

  • ✓ Forensic ZIP per capture
  • ✓ Video SnapPack credits compatible
  • ✓ File certification 5/mo
Start 7-day trial
POPULAR

Professional

$16.99/mo

200 captures/month

  • ✓ Everything in Essential
  • ✓ Blockchain timestamp included
  • ✓ FRE 901(b)(9) ready
  • ✓ Best fit for patient advocates
Start 7-day trial

Enterprise

$28.99/mo

Unlimited captures

  • ✓ Everything in Pro
  • ✓ eIDAS qualified bundled
  • ✓ 30-min Video SnapPack
  • ✓ Priority support
  • ✓ Best fit for ERISA / bad-faith firms
Start 7-day trial

Full pricing & comparison →

Not ready to buy? Download a sample evidence package to see exactly what your advocate or IRO reviewer will receive.

Want to verify a captured ZIP? Open the Trust Verifier — drag a full ZIP and check hash, signature, blockchain timestamp.

Patient evidence FAQ — United States

Get SnapPack — $4.99, capture tonight

No subscription · HIPAA-clear · Admissible in all 50 states under FRE 901

About this guide

Authorship, methodology, and editorial review

Author & Editor

Radim Motycka

Founder and Lead Engineer, ProofSnap. Blockchain engineer with 10+ years in cryptographic protocol design. Integrated eIDAS qualified timestamps (Disig a.s., EU Regulation 910/2014) and OpenTimestamps Bitcoin anchoring into ProofSnap's evidence pipeline.

Expertise: FRE 901(a)/901(b)(9)/902(13)/902(14) authentication, SHA-256 (FIPS 180-4), RSA-4096 PKCS#1 v1.5, RFC 3161 Time-Stamp Protocol, ISO/IEC 27037 chain of custody, HIPAA 45 CFR 164.524, Chrome Extension Manifest V3.

Editorial methodology

Sources & fact-checking

  • Primary sources only: KFF, CMS, HHS OIG, ProPublica, federal court filings, peer-reviewed studies
  • Every statistic cites the originating institution and year
  • Case studies link to named court dockets and primary investigative reporting
  • Updated as deadlines, statutes, and litigation evolve (monthly review)

Important disclaimer

Not medical or legal advice

This guide is editorial content for informational purposes only. It is not medical advice, legal advice, or a substitute for consultation with a licensed physician, attorney, or licensed patient advocate in your state.

Individual results depend on jurisdiction, plan terms, treating physician documentation, and procedural compliance. The author is not a licensed physician, attorney, or insurance broker. For a denial appeal or coverage dispute affecting your health, consult a licensed professional. For urgent care needs, call your provider or 911.

Editorial timeline: First published May 17, 2026 · Last reviewed and updated May 18, 2026 · Next scheduled review: monthly. Spotted an error or outdated statistic? Email support@getproofsnap.com.

Affiliations & conflicts of interest: ProofSnap sells the forensic-evidence Chrome extension recommended in this guide. We do not receive referral fees from Counterforce Health, Claimable, patient-advocate organizations, or any insurer. All third-party tool mentions are based on publicly verifiable performance data.

Get SnapPack — $4.99, No Subscription →

HIPAA-clear · No PHI sent off device · FRE 901 admissible