Symptom, not diagnosis
Coverage appeals
- 149.110 defines the condition by acute symptoms a prudent layperson would judge
- The discharge diagnosis is not the test
Guide · ED appeals
Appealing an ED downcode with the prudent layperson standard
Short answer: lead with 45 CFR 149.110(b)(4), which bars limiting the emergency medical condition solely on diagnosis codes; cite 147.138 for plan years before 2022; write the letter from the door inward with six labeled exhibits.
45 CFR 149.110 · plan years from Jan 1, 2022
45 CFR 147.138 · earlier plan years
Cigna R36 · 99285 to 99283
Florida Blue 26-088 · 99285 to 99284
Focus
ED downcode appeals
Audience
ER groups
Framework
45 CFR 149.110
Codes
99283 to 99285
Payers
Cigna · Florida Blue
Length
8 min read
Jan 12022
Plan years from this date fall under 45 CFR 149.110; 147.138 governs earlier plan years [1]
(b)(4)
The paragraph of 149.110 that bars limiting an emergency medical condition solely on the basis of diagnosis codes [2]
30calendar days
Initial payment or notice of denial on an out-of-network emergency claim under 149.110 [2]
6exhibits
Itemized claim, triage note, physician note, orders and results, MAR and nursing flowsheet, labeled A to F
Two regulations, one test
Most templates still cite 147.138, which covers plan years before January 1, 2022 only [1]. Cite both, lead with 149.110(b)(4).
| Element | 45 CFR 147.138(b) | 45 CFR 149.110 (current) |
|---|---|---|
| Plan years covered | Beginning before January 1, 2022 | Beginning on or after January 1, 2022 |
| Prudent layperson definition | Acute symptoms of sufficient severity, including severe pain | Same, and expressly includes mental health conditions and substance use disorders |
| Prior authorization | Not required, in or out of network | Not required, in or out of network |
| Diagnosis-code limits | Not addressed | Plans may not limit the emergency medical condition solely on the basis of diagnosis codes [2] |
| Out-of-network payment floor | Greatest of median in-network rate, usual and customary method, or Medicare | Recognized amount and out-of-network rate under the No Surprises Act; initial payment or denial within 30 calendar days |
| Post-stabilization | Not addressed in detail | Included as emergency services unless the notice and consent conditions in 149.410 are met |
How far each policy drops the level, and what argument fits
E/M level after the downcode (99281 = level 1, 99285 = level 5)
Diagnosis-driven policies that the prudent layperson argument answers directly.
Billedprofessional 99285
Level 5100%, as billed
Florida Blue 26-088low-acuity diagnosis list
99284, level 41 level down, -20% [4]
Cigna R36single non-complex diagnosis
99283, level 32 levels down, -40% [3]
As billedOne level downTwo levels down
| Payer decision | Lead argument | Evidence that wins |
|---|---|---|
| Low-acuity diagnosis drives the downcode Cigna R36 Florida Blue 26-088 | Prudent layperson: presenting symptoms, not final diagnosis, define the emergency | Triage note, chief complaint, vitals, MDM |
| Claim-data algorithm lowers a facility level UHC 2026R6003A 2026R6007A | Complete claim inputs and the policy's own exclusions; regulation as the frame [5] | Itemized UB-04, orders timeline, MAR, nursing flowsheet |
| Resource-intensity classification lowers a facility level Anthem G-19002 | Interventions and resources shown on the claim [6] | Charge detail by intervention, patient status, acuity |
Six record elements, from the door inward
An ED note documents in reverse. The appeal runs forward, so the reviewer sees the visit as a prudent layperson saw it at the door.
- 1
Exhibit B · triage note
Chief complaint in the patient's words
- Chest pain, worst headache, shortness of breath
- The symptom is the legal test
- 2
Exhibit B · triage note
Triage acuity and first vitals
- Emergency Severity Index level
- Heart rate, blood pressure, oxygen saturation, pain score, time recorded
- 3
Exhibit C · physician note
What had to be excluded
- Acute coronary syndrome, pulmonary embolism, appendicitis, subarachnoid bleed
- The medical decision making payers ask for
- 4
Exhibit D · orders and results
The work-up that excluded it
- Troponin, ECG, CT, ultrasound, labs, with times
- Facility: tie each to a claim line
- 5
Exhibits E and F · MAR, nursing flowsheet
Interventions and reassessments
- Medications with route and time, IV fluids
- Repeat vitals, reassessments, monitoring duration
- 6
Exhibit A · itemized claim
Disposition and condition at discharge
- Admit, observation, transfer or discharge, and why
- Admission, observation, transfer and death are UHC and Anthem facility exclusions
What carries the level, by appeal type
MDM, not volume
Professional 99284 and 99285
- Problems addressed, data reviewed and risk managed carry the level
- Cloned text is rejected under Cigna R36 [3]
Lines, not prose
Facility appeals
- Every intervention maps to a line on the itemized claim
- UHC and Anthem lower levels on claim data
Two pages plus exhibits, seven sections
5 linesHeader
Patient, member ID, claim number, date of service, billed and paid codes, remit date, appeal deadline
1 sentenceRequest
Restore the billed level (or coverage) and pay the difference
1 paragraphRule
149.110(b)(1), (b)(2) and (b)(4) for plan years from 2022; 147.138(b) for earlier years; the payer's own policy and its exclusions
3 to 4 linesPresentation
Chief complaint, triage acuity, vitals, time of arrival
1 paragraphDecision making
Differential considered, work-up ordered and resulted, interventions, reassessments
2 linesDisposition
Outcome, and whether it triggers a policy exclusion
Labeled A to FExhibits
Itemized claim, triage note, physician note, orders and results, MAR, nursing flowsheet
Two phrases do real work: the claim met one of the plan's own exclusions; and the plan judged the condition from the diagnosis code alone, which 149.110(b)(4) does not permit. If neither is true, the appeal rests on the MDM.
Takeaway
Write the letter from the door inward: symptoms, acuity, what had to be ruled out, what ruled it out, what was done, where the patient went.
One route per account, two clocks per claim
Payer and policy
- Remit policy, billed and paid codes
- One letter body per rule
Route chosen
- Corrected claim when codes were missing; UHC invites it [5]
- Appeal when the claim was complete; never both
Deadline and date sent
- Windows differ by administrative guide
- A late appeal is a lost appeal
Exclusion claimed
- Fastest overturns cite the payer's own exclusion
- Admission, observation, transfer, death
Outcome
- Days to decision, dollars restored
- Feeds the scorecard and payer meeting
Out-of-network claims run a second clock: from January 1, 2027 remark code N877 or N876 says whether open negotiation and Federal IDR are available [7]. See the IDR Gateway operating manual.
Six moves before the next remit
Replace 147.138 with 149.110 in the templateKeep 147.138 for plan years before 2022 only; lead with (b)(4) [2].
Pull adjusted 99284 and 99285 lines by payerMatch each to the remit policy. The free denial audit shows where the dollars sit.
Build the six-exhibit file per claimItemized claim, triage note, physician note, orders and results, MAR, nursing flowsheet, labeled A to F.
Pick one route per accountCorrected claim or appeal, never both.
Check the facility side separatelySee the ED facility E/M leveling defense white paper, the UHC EDC Analyzer and Anthem G-19002 reads.
Start the trackerOne row per appeal. Our emergency department billing services team builds the file by payer and policy.
Frequently asked questions
What is the prudent layperson standard for emergency services?
A coverage rule that defines an emergency medical condition by the patient's acute symptoms, including severe pain, as a prudent layperson would judge them, not by the final diagnosis. It appears in 45 CFR 147.138(b) for plan years before 2022 and in 45 CFR 149.110 for plan years beginning on or after January 1, 2022.
Can a health plan deny or downcode an ED visit because of the discharge diagnosis?
For plan years beginning on or after January 1, 2022, 45 CFR 149.110(b)(4) requires plans to cover emergency services without limiting what constitutes an emergency medical condition solely on the basis of diagnosis codes. A downcode that rests on the final diagnosis alone, with no review of the presenting symptoms, runs against that rule and is the strongest ground for appeal.
Does the prudent layperson standard apply to facility level re-leveling by UHC or Anthem?
As a frame, yes. But those policies lower facility levels on claim data (UHC's EDC Analyzer inputs) or resource intensity (Anthem's classification), so the appeal is won with the itemized claim, the nursing record and the policy's own exclusions, with the regulation cited alongside.
Should I send a corrected claim or an appeal for an ED downcode?
Send a corrected claim when the original was missing diagnosis codes, diagnostic lines or the correct patient status; UHC's policies invite that route. Send an appeal when the claim was complete and the payer still lowered the level. Never run both on the same account at the same time.
- 45 CFR 147.138, Patient protections: coverage of emergency services and applicability date (eCFR)
- 45 CFR 149.110, Preventing surprise medical bills for emergency services (eCFR)
- Cigna Reimbursement Policy R36, Emergency Room Services (updated February 13, 2026)
- Florida Blue Payment Policy 26-088, Emergency Department Services (effective June 1, 2026)
- UnitedHealthcare Commercial and Individual Exchange Reimbursement Policy 2026R6003A, ED Facility E&M Coding Policy (September 1, 2026)
- Anthem Blue Cross (California Medi-Cal) Reimbursement Policy G-19002, Emergency Department Leveling of Evaluation and Management Services
- Departments of the Treasury, Labor and HHS: Guidance on Required Remittance Advice Remark Codes Related to the No Surprises Act (July 17, 2026)
Checked October 25, 2026. Rules and payer policies change; confirm against the source before relying on them.
ServiceEmergency department billing services
White paperED facility E/M leveling defense
InsightUHC's EDC Analyzer policies: 2026 read
InsightAnthem ED leveling policy G-19002: what to audit
InsightCigna R49 E/M downcoding appeal file
BlogWhat ER groups should demand from billing services
ServiceEmergency room billing services
How many ED downcodes went unappealed last quarter?
We pull your adjusted 99284 and 99285 lines by payer, match each to its policy, and build the appeal file and tracker. Free 30-minute audit with a senior partner.