FDA & INSURER CRITERIA
BMI Requirements for Foundayo
The FDA Standard
Foundayo is FDA-approved for adults with BMI ≥30 (obesity), or BMI ≥27 with at least one weight-related health condition (like diabetes or high blood pressure). However, many insurers set stricter thresholds.[1]
Body Mass Index (BMI) is the primary metric insurers use to determine if you qualify for Foundayo coverage. Understanding these requirements—and how to document them properly—is critical to avoiding denials.
BMI Classification Chart
| BMI Range | Classification | Foundayo Eligibility |
|---|---|---|
| < 25 | Normal weight | Not eligible |
| 25 – 26.9 | Overweight | Not eligible (below FDA threshold) |
| 27 – 29.9 | Overweight | Eligible WITH a weight-related health condition |
| 30 – 34.9 | Obese Class I | Eligible |
| 35 – 39.9 | Obese Class II | Eligible |
| ≥ 40 | Obese Class III | Eligible |
Note: Some insurers (like Cigna) require BMI ≥32—higher than the FDA label. Always check your specific plan's criteria.
For a complete overview of all eligibility requirements, see our full coverage guide.
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MAJOR INSURER REQUIREMENTS
BMI Cutoffs by Insurer
Each insurer sets its own BMI threshold for Foundayo coverage. Here's what the major insurers require:
| Insurer | BMI Threshold | Health Condition Requirements | Key Notes |
|---|---|---|---|
| Aetna | ≥30 or ≥27 | 1+ health condition if BMI 27-29.9 | Follows FDA label; documentation required[2] |
| UnitedHealthcare | ≥30 or ≥27 | 1+ health condition if BMI 27-29.9 | Some plans require BMI ≥35 or ≥40[3] |
| Cigna | ≥32 or ≥27 | 2+ health conditions if BMI 27-31.9 | Stricter than FDA—requires TWO comorbidities[4] |
| Blue Cross Blue Shield | ≥30 or ≥27 | 1+ health condition if BMI 27-29.9 | Varies by state/plan; verify with your plan[5] |
| Anthem | ≥30 or ≥27 | 1+ health condition if BMI 27-29.9 | Many plans exclude weight loss drugs entirely |
| Kaiser Permanente | ≥30 | Required for weight management indication | Limited formulary coverage; internal review required[6] |
Plan Variations
Even within the same insurer, requirements vary by plan type (HMO vs. PPO), employer, and state. Always request your specific plan's prior authorization criteria in writing before submitting.
OPTIONS FOR BMI 27-31
What If Your BMI Is 'Too Low'?
If your BMI falls between 27 and 31 and you've been denied, you're not out of options. Here's what you can do:
Document your health conditions thoroughly
FDA approval and most insurers allow coverage at BMI 27+ if you have qualifying health conditions. The key is documenting them with:
- Diagnosis codes in your medical record (your doctor handles this)
- Recent lab results (A1C for blood sugar, cholesterol panel, blood pressure readings)
- Sleep study results if you have sleep apnea
- Specialist notes confirming the condition
See the Health Conditions section below for qualifying conditions.
Check for historical BMI documentation
Some insurers accept your highest documented BMI from the past 1-2 years, not just your current measurement. If you've lost weight recently through diet and exercise, your historical BMI may still qualify you.
Ask your provider for: Weight records from the past 12-24 months showing your BMI history.
Request a peer-to-peer review
Your prescribing physician can request to speak directly with the insurance company's medical director. This is often more effective than written appeals because:
- Your doctor can explain clinical nuances the written record may not capture
- They can advocate for your specific situation
- The reviewer can ask questions and your doctor can answer them directly
Appeal based on weight cycling risk
If you've experienced weight cycling (yo-yo dieting), this can be a strong argument for medical necessity. Here's sample language your doctor can use:
"[Patient] has a history of weight cycling with multiple failed weight loss attempts. Research shows that repeated weight gain and loss increases heart disease risk and metabolic problems. Medication treatment with orforglipron is medically necessary to achieve lasting weight management and break this harmful cycle."
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PROPER DOCUMENTATION FOR APPROVAL
How to Document BMI
Many BMI-related denials happen because of documentation errors, not because you don't qualify. Here's how to document BMI correctly:
Documentation Checklist
- Height and weight measured within 30-90 days of submission
- BMI calculated and documented (not just height/weight)
- Measurement taken in a clinical setting (not self-reported)
- Date of measurement clearly recorded
- Provider signature on the documentation
Common BMI Documentation Mistakes
| Mistake | Why It Causes Denial | How to Fix |
|---|---|---|
| BMI not calculated | Insurer won't calculate it for you | Include explicit BMI calculation in notes |
| Outdated measurement | Most plans require BMI within 30-90 days | Get a current measurement before submitting |
| Self-reported weight | Insurers require clinical verification | Have weight measured at provider's office |
| Missing date | Can't verify recency of measurement | Always include date of measurement |
| Height/weight mismatch | Inconsistent records flag for review | Verify height is measured, not estimated |
BMI Calculation Formula
Make sure your documentation includes the correct calculation:
BMI = weight (kg) / height (m)²
Or in US units: BMI = weight (lb) × 703 / height (in)²
Example: A patient who is 5'8" (68 inches) and weighs 200 lbs: BMI = 200 × 703 / (68)² = 140,600 / 4,624 = 30.4 kg/m²
QUALIFYING CONDITIONS FOR BMI 27-29.9
Health Conditions That Help
If your BMI is between 27 and 29.9, documenting weight-related health conditions is essential for coverage. Here are the conditions that qualify:
| Health Condition | Diagnosis Code | What Your Doctor Needs |
|---|---|---|
| Type 2 Diabetes | E11.x | A1C blood test results, medication list, diagnosis date |
| High Blood Pressure | I10 | Blood pressure readings (≥130/80), medication list |
| High Cholesterol | E78.5 | Cholesterol test results (LDL, HDL, triglycerides) |
| Sleep Apnea | G47.33 | Sleep study results showing severity |
| Coronary Artery Disease | I25.x | Cardiologist notes, imaging, medical history |
| PCOS (Polycystic Ovary Syndrome) | E28.2 | OB/GYN diagnosis, hormone test results |
| Fatty Liver Disease | K76.0 | Liver function tests, imaging |
| Osteoarthritis (joint pain) | M19.x | X-rays or MRI, orthopedic notes |
Cigna Requires TWO Health Conditions
If your BMI is under 32 and you have Cigna, you need two or more documented weight-related health conditions to qualify. This is stricter than FDA requirements and most other insurers.[4]
How to Document Your Health Conditions
- Ask your doctor to include diagnosis codes in their notes and on the prior authorization form
- Attach lab test results (blood sugar tests, cholesterol panels, liver function tests, etc.)
- Include diagnosis dates showing when each condition was first diagnosed
- Get specialist notes if available (heart doctor, diabetes specialist, etc.)
TEMPLATE FOR BMI DENIALS
Sample Appeal Letter
What Your Appeal Must Include
- Patient information (name, DOB, member ID, case/reference ID)
- The exact denial language being appealed
- Current BMI with date of measurement
- Historical BMI showing weight trend
- Documented health conditions with diagnosis codes
- FDA indication and clinical evidence
View BMI Appeal Letter Template
HEADER:
[Date] [Medical Director Name] [Insurance Company] [Address] Re: Appeal for [Patient Name] Member ID: [Number] DOB: [Date] Case ID: [Number] Denial Reason: BMI Criteria Not Met
OPENING:
"Dear Medical Director, I am writing to appeal the denial of coverage for Foundayo (orforglipron) for [Patient Name]. The denial stated: '[copy exact denial language regarding BMI].' I respectfully request reconsideration based on the following clinical documentation demonstrating that [Patient Name] meets both FDA-approved criteria and your plan's medical necessity requirements."
BMI DOCUMENTATION:
"Current BMI: [X] kg/m², documented on [date] at [clinic name]. Height: [X] in/cm | Weight: [X] lbs/kg BMI History: • [Date]: BMI [X] • [Date]: BMI [X] • [Date]: BMI [X] [Patient]'s BMI meets the FDA-approved indication for Foundayo, which is approved for adults with BMI ≥30, or BMI ≥27 with at least one weight-related comorbidity."
COMORBIDITY DOCUMENTATION (if applicable):
"[Patient] has the following documented weight-related comorbidities: • [Condition 1] (ICD-10: [code]), diagnosed [date] • [Condition 2] (ICD-10: [code]), diagnosed [date] Supporting documentation is attached, including recent lab results and specialist notes confirming these diagnoses."
CLINICAL RATIONALE:
"[Patient] has attempted lifestyle changes including [diet program, exercise regimen] for [X months/years] with [X%] weight loss that was not sustained. Clinical evidence from ATTAIN trials demonstrates that orforglipron achieves ~12% sustained weight loss—significantly exceeding what diet and exercise alone can achieve. At [Patient]'s current weight and with their health conditions, continued obesity poses significant health risks including [list specific risks related to their conditions]."
CLOSING:
"Based on the above documentation, [Patient Name] meets the FDA-approved criteria for Foundayo and has demonstrated medical necessity for this treatment. I respectfully request that you reverse this denial and authorize coverage. Please contact me at [phone] if you need additional information. Sincerely, [Provider Name, Credentials] [NPI Number - your doctor's provider ID]"
Official resource: Visit foundayo.lilly.com for coverage resources and support.[7]
COMMON QUESTIONS ABOUT BMI REQUIREMENTS
Frequently Asked Questions
The FDA approved Foundayo for adults with BMI 30 or higher (obesity), or BMI 27-29 with at least one weight-related health condition like type 2 diabetes, high blood pressure, or sleep apnea. However, some insurers (like Cigna) require BMI 32 or higher, or two health conditions—stricter than the FDA allows. Always check your specific plan's requirements.
If your BMI is between 27 and 29.9, you need documented weight-related health conditions to qualify. First, make sure your health conditions are properly documented with diagnosis codes and lab results. Second, check if your insurer requires more than one condition (Cigna requires two). Third, consider your past weight—some insurers accept your highest BMI from the past 1-2 years, even if you've lost some weight since then.
Most insurers require BMI documentation within 30-90 days of your prior authorization request. The measurement must be taken at a doctor's office (not self-reported at home) and should include the date, your height, weight, and the calculated BMI number. Outdated measurements are a common cause of denials.
FDA-recognized weight-related conditions include: type 2 diabetes, high blood pressure, high cholesterol, sleep apnea, heart disease, PCOS (polycystic ovary syndrome), and fatty liver disease. Each condition must be documented with a diagnosis code (your doctor handles this) and supporting evidence like lab results or specialist notes.
Cigna sets its own coverage rules that are stricter than the FDA allows. Cigna requires BMI 32 or higher for Foundayo, or BMI 27+ with two or more health conditions (compared to just one for other insurers). This is Cigna's policy decision, not an FDA requirement. If you have Cigna, you'll need to meet their specific rules to get coverage.
YOUR PATH FORWARD
What's Next
Ready to Appeal?
Many appeals succeed with proper documentation. Our complete Foundayo appeals guide walks you through the entire process—from writing your appeal letter to requesting external review.
Other Common Denial Reasons
Denied for a different reason? See our guides for other denial types:
- Medical Necessity Not Met — Insurer says treatment isn't needed
- Step Therapy Required — Must try other medications first
- Formulary Exclusion — Drug not on plan's covered list
- Missing Lifestyle Documentation — Diet/exercise records needed
Not sure why you were denied? View all Foundayo denial types →
WHAT'S CHANGING
BMI Criteria Denials: 2026 Outlook
2026: BMI Thresholds May Vary More
As insurers balance cost management with coverage expansion, BMI criteria are becoming more nuanced. Some plans are adding lower BMI thresholds with comorbidity requirements while others are tightening requirements.
Documentation Trends
For 2026, expect insurers to require:
- Multiple BMI measurements: Some plans now require 2+ measurements over 6+ months
- DEXA scans: Some plans accept body composition analysis for borderline BMI
- Comorbidity documentation: More emphasis on documenting weight-related conditions
If Appeals Fail: TrumpRx Option
TrumpRx (launched February 5, 2026) lists Foundayo at LillyDirect’s self-pay prices and sends orders to LillyDirect, with no BMI verification—only a prescription is required:
- Starting dose (0.8mg): $149/month
- 2.5mg dose: $149/month (temporary price through December 31, 2026)
- 5.5mg dose: $199/month (temporary price through December 31, 2026)
- Higher doses (9mg+): $299/month ($349 for 14.5mg and 17.2mg if not refilled within 45 days)
Same pricing as LillyDirect. No PA, no step therapy, no documentation required.
BMI Denials for Other GLP-1s
Similar BMI denial? The appeal strategies are comparable across medications:
References
- U.S. Food and Drug Administration. (April 1, 2026). "Foundayo (orforglipron) Prescribing Information." Drugs@FDA
- Aetna. (2026). "GLP-1 Weight Loss Medications Prior Authorization Criteria." Requirements vary by plan; contact Aetna for specific criteria.
- UnitedHealthcare. (2026). "Weight Loss Medication Coverage Policies." uhcprovider.com
- Cigna. (2026). "Weight Loss – GLP-1 Agonists Coverage Criteria." Cigna requires BMI ≥32 or BMI ≥27 with two comorbidities. cigna.com
- Honest Care. (2026). "Does BCBS Cover Foundayo?" findhonestcare.com
- Kaiser Permanente. (2026). "Formulary and Coverage Information." Coverage criteria vary by region. kaiserpermanente.org
- Eli Lilly and Company. (April 1, 2026). "Lilly's Foundayo (orforglipron) Approved by FDA." Press release. investor.lilly.com
- Wharton S, et al. (2025). "Orforglipron for the Treatment of Obesity (ATTAIN-1)." New England Journal of Medicine. investor.lilly.com
Last updated October 6, 2026
Disclaimer
The information on this page is for educational and informational purposes only and is not intended as medical advice. Honest Care does not provide medical diagnosis, treatment, or individualized recommendations. Always seek the advice of your physician or other qualified healthcare professional regarding any medical condition or treatment.
While this content has been reviewed for accuracy and balance, new evidence may emerge after publication. Drug availability, indications, and insurance coverage can change over time. Honest Care makes no warranties as to completeness or currentness of the information and is not responsible for decisions made based on this content.