A screening colonoscopy got reclassified as diagnostic. The insurer billed $1,847. BillHero got it zeroed out in 32 days.

Maya, 47, scheduled a routine screening colonoscopy with her in-network gastroenterologist. She had no symptoms — this was a standard preventive exam recommended by the U.S. Preventive Services Task Force (USPSTF) for adults 45 and older. Under the Affordable Care Act, preventive services with a USPSTF grade A or B recommendation must be covered with no patient cost-sharing.

During the procedure, the gastroenterologist identified and removed a small polyp. The specimen was sent to pathology. Everything else about the visit was routine.

Three weeks later, Maya received an Explanation of Benefits showing she owed $1,847. Anthem had reclassified the visit from screening (CPT 45378) to diagnostic (CPT 45385, colonoscopy with biopsy) and applied her deductible. The EOB listed the denial reason as: "Procedure billed as diagnostic; patient cost-sharing applies per plan."

Maya uploaded the EOB and her Anthem Summary of Benefits into BillHero.

This is the kind of line-item a user would upload to BillHero. Identifying numbers are fabricated.

EXPLANATION OF BENEFITS — ANTHEM BCBS
Patient: [REDACTED]       Member ID: [REDACTED]
Claim #: [REDACTED]       Service Date: 2026-02-12
Provider: Blue Ridge Gastroenterology (in-network)

Line items
──────────────────────────────────────────────
CPT 45385  Colonoscopy w/ lesion removal    $2,140.00
CPT 88305  Pathology, Level IV              $   312.00
                                          ──────────
Total billed                                  $2,452.00
Allowed amount                                $1,847.00
Plan paid                                     $    0.00
Deductible applied                            $1,847.00
Patient responsibility                        $1,847.00

Remark: "Service billed as diagnostic. Cost-share
per plan terms. Screening exam coverage applies
only when no polyp is found or removed."

After parsing the EOB and cross-referencing the uploaded Summary of Benefits, BillHero surfaced a single high-confidence issue:

An abridged excerpt. The full letter includes a header block with policy and claim identifiers, a formal request for first-level internal appeal, and a submission checklist.

[DATE]

Anthem BCBS Appeals
P.O. Box [REDACTED]
Richmond, VA [REDACTED]

Re:  First-Level Internal Appeal
     Member: [Patient Name]          Member ID: [REDACTED]
     Claim Number: [REDACTED]        Date of Service: 2026-02-12

Dear Appeals Review Committee,

I am appealing the denial of claim [REDACTED] and requesting that the
service be reprocessed as a preventive screening with no cost-sharing,
as required by Section 2713 of the Affordable Care Act and 45 CFR
§147.130.

Factual background. On February 12, 2026, I received a colonoscopy
at Blue Ridge Gastroenterology, an in-network provider. The procedure
was ordered and performed as a routine screening colonoscopy — I am
47 years old, asymptomatic, with no prior history of colorectal
disease, and the procedure was scheduled consistent with the
U.S. Preventive Services Task Force (USPSTF) Grade A recommendation
for colorectal cancer screening in adults aged 45–75. The referring
order and operative note both document screening intent (enclosed).

During the screening, the gastroenterologist identified and removed a
single small polyp. The tissue was sent to pathology. There were no
other findings and no other procedures.

Anthem has processed the claim as diagnostic (CPT 45385) and applied
$1,847.00 to my deductible. The remark code states that screening
coverage does not apply when a polyp is removed.

Why this processing is incorrect. Federal guidance explicitly
addresses this exact scenario. The Departments of Labor, HHS, and
Treasury issued a tri-agency FAQ (ACA Implementation FAQs Part XII,
Q5, February 2013) clarifying that polyp removal during a screening
colonoscopy is an integral part of the preventive service and may
not be billed with patient cost-sharing. This guidance is binding on
non-grandfathered group health plans, including this one. A series
of follow-up FAQs (Part XXVI, Q7; Part XLIII, Q5) have reiterated
and expanded the rule.

My own Summary of Benefits, issued by Anthem for this plan year,
confirms: "Preventive care services recommended under the U.S.
Preventive Services Task Force with a grade of A or B are covered
at 100% when provided by in-network providers, with no deductible,
copayment, or coinsurance." Colorectal cancer screening for adults
45 and older is a USPSTF Grade A recommendation.

Relief requested. Please:

1. Reprocess the claim under the preventive-care benefit at $0
   patient responsibility.
2. Issue a corrected EOB.
3. Confirm the correction in writing to the member and the provider.

Enclosed: referral for screening colonoscopy; operative note;
excerpt from my Summary of Benefits; USPSTF Grade A recommendation
for colorectal cancer screening.

I request a written determination within 30 days as provided under
ERISA §503 and 29 CFR §2560.503-1.

Sincerely,
[PATIENT SIGNATURE]

1. 1
   Day 0
   EOB received and uploaded to BillHero

   Maya received her paper EOB on a Tuesday evening. She photographed it with her phone and uploaded it alongside her Anthem Summary of Benefits. The full analysis returned in 2 minutes 40 seconds.

2. 2
   Day 1
   Appeal letter reviewed and mailed certified

   Maya proofread the drafted letter, printed it with her attached documents (referral, op note, SOB page), and mailed it certified with return receipt from her local post office.

3. 3
   Day 4
   Appeal received by Anthem

   Return receipt confirmed delivery to the appeals P.O. box. Maya logged the tracking number in her BillHero timeline.

4. 4
   Day 18
   Follow-up phone call

   Per the follow-up script, Maya called the member services number on the back of her card, referenced the certified mail receipt, and asked for the claim status. The representative confirmed the appeal was under review by the clinical team.

5. 5
   Day 28
   Written determination received

   Anthem mailed a letter overturning the original determination. The claim was being reprocessed under the preventive benefit.

6. 6
   Day 32
   Corrected EOB arrives

   The replacement EOB showed $0 patient responsibility. Maya's account balance with the provider dropped to $0 the following week.