How to Get Keytruda (Pembrolizumab) Covered by Humana in Illinois: Decision Tree, Appeals Guide & Forms

Answer Box: Keytruda Coverage by Humana in Illinois

Keytruda (pembrolizumab) requires prior authorization from Humana in Illinois. Most patients qualify if they have an FDA-approved indication with proper biomarker testing (like PD-L1 expression for lung cancer). First step: Have your oncologist submit a prior authorization request through Humana's provider portal with diagnosis, pathology results, and treatment history. If denied, you have 65 days to appeal internally, then can request Illinois external review within 4 months. Timeline: PA decisions typically take 30 days; expedited reviews available for urgent cases.

Table of Contents

How to Use This Decision Tree

This guide helps you navigate Keytruda coverage with Humana in Illinois by walking through eligibility requirements, documentation needs, and appeal options. Start with the eligibility triage below to determine your coverage likelihood, then follow the appropriate pathway.

Key principle: Humana covers Keytruda when it's FDA-approved for your specific cancer type and clinical situation. The most common hurdles are missing biomarker tests (especially PD-L1 expression) and incomplete documentation of prior therapies.

Eligibility Triage: Do You Qualify?

Likely Eligible

You probably qualify for coverage if:

  • Diagnosis confirmed: You have a cancer type with FDA-approved Keytruda indications (melanoma, non-small cell lung cancer, kidney cancer, bladder cancer, head/neck cancer, etc.)
  • Biomarkers done: Required testing completed (PD-L1 expression for lung cancer, MSI-H/TMB-H for solid tumors where specified)
  • Treatment line appropriate: Using Keytruda at the FDA-approved treatment sequence (first-line, second-line, etc.)
  • Documentation complete: Pathology reports, staging, and prior therapy records available

Possibly Eligible ⚠️

You may qualify but need additional steps if:

  • Biomarker testing incomplete: PD-L1 or other required tests not done yet
  • Off-label use: Your oncologist wants to use Keytruda for a non-FDA approved indication
  • Combination therapy: Using Keytruda with other drugs that require separate authorization
  • Prior therapy unclear: Records of previous treatments are incomplete

Not Yet

Coverage is unlikely without changes if:

  • No FDA indication: Your cancer type doesn't have approved Keytruda use
  • Wrong treatment line: Trying to skip required first-line therapies (step therapy)
  • Missing diagnosis: Pathology or staging documentation insufficient
  • Alternative required: Humana requires trying other treatments first

If "Likely Eligible": Document Checklist

Your oncologist should submit these documents for prior authorization:

Required Clinical Documentation

  • Pathology report with cancer type, stage, and grade
  • Biomarker test results: PD-L1 expression (if required), MSI-H/TMB-H status
  • Treatment history: Prior therapies tried, dates, outcomes, and reasons for discontinuation
  • Current staging: Recent imaging or clinical assessment
  • Prescriber attestation: Medical necessity letter citing FDA labeling

Submission Process

  1. Provider submits via: Humana provider portal or fax
  2. Include billing codes: J9271 (pembrolizumab HCPCS code)
  3. Expected timeline: 30 days for standard review, 72 hours for expedited
  4. Track status: Through provider portal or by calling Humana
Tip: Ask your oncologist's office to request expedited review if treatment delay could worsen your condition.

If "Possibly Eligible": Tests to Request

Missing Biomarker Testing

For lung cancer patients: Request PD-L1 testing if not done. Humana typically requires PD-L1 Combined Positive Score (CPS) ≥1 for first-line treatment.

For solid tumors: Ask about MSI-H (microsatellite instability-high) or TMB-H (tumor mutational burden-high) testing if considering Keytruda for these indications.

Timeline to Re-apply

  • Biomarker results: Usually available within 1-2 weeks
  • Resubmit PA: Once test results are available
  • Coverage decision: 30 days from complete submission

If "Not Yet": Alternatives & Exception Requests

Step Therapy Alternatives

Humana may require trying these first:

  • Lung cancer: Carboplatin/paclitaxel or other chemotherapy
  • Melanoma: Targeted therapy (if BRAF-positive) or other immunotherapy
  • Kidney cancer: Sunitinib, pazopanib, or other first-line agents

Exception Request Process

Your oncologist can request to skip step therapy by documenting:

  • Medical contraindications to required first-line treatments
  • Prior treatment failures (if tried outside Humana coverage)
  • Clinical urgency requiring immediate Keytruda treatment

If Denied: Appeal Path Chooser

Level 1: Internal Appeal (First 65 Days)

  • Who files: Patient or authorized representative
  • Deadline: 65 days from denial notice
  • How to submit: Humana member portal, phone (800-787-3311), or mail
  • Timeline: 30 days for decision (expedited available)
  • Required: Copy of denial, medical records, prescriber letter

Level 2: Peer-to-Peer Review

If internal appeal denied, your oncologist can request:

  • Direct discussion with Humana medical director
  • Clinical case presentation with supporting evidence
  • Guideline references (NCCN, ASCO recommendations)

Level 3: Illinois External Review

  • Deadline: Within 4 months of final Humana denial
  • Process: Independent physician review through Illinois Department of Insurance
  • Timeline: 45 days (expedited: 72 hours)
  • Cost: Free to patients

Coverage Requirements at a Glance

Requirement What It Means Where to Find It
Prior Authorization Must get approval before treatment Humana PA drug list
PD-L1 Testing Required for some lung cancer indications FDA label, oncology guidelines
Step Therapy May need to try other treatments first Humana formulary
Medical Necessity Must be FDA-approved or compendia-listed Prescriber documentation
Billing Code J9271 (pembrolizumab injection) Healthcare Common Procedure Coding System

Common Denial Reasons & How to Fix Them

Denial Reason How to Overturn
"PD-L1 testing not provided" Submit biomarker test results showing expression level
"Not medically necessary" Provide FDA labeling excerpt and clinical guidelines
"Step therapy not completed" Document contraindications or prior failures outside plan
"Off-label use" Cite recognized compendia (NCCN, Lexicomp) supporting use
"Insufficient documentation" Submit complete pathology, staging, and treatment history

Illinois External Review Process

Illinois residents have strong appeal rights through the state's external review system:

Key Features

  • Independent physician review by board-certified oncologist
  • No cost to patients (insurers pay review fees)
  • Binding decision on medical necessity
  • Fast timeline: 45 days standard, 72 hours expedited

How to File

  1. Download form: Illinois External Review Request
  2. Submit to: Illinois Department of Insurance, 320 W. Washington St., 4th Floor, Springfield, IL 62767
  3. Include: Denial letters, medical records, prescriber statement
  4. Deadline: 4 months from final Humana denial
Note: Illinois' 4-month deadline is longer than many states, but still requires prompt action after internal appeals are exhausted.

FAQ: Keytruda Coverage Questions

How long does Humana prior authorization take in Illinois? Standard PA decisions take up to 30 days. Expedited reviews (for urgent cases) must be completed within 72 hours.

What if Keytruda isn't on Humana's formulary? Keytruda is typically covered under Medicare Part B (medical benefit) rather than Part D (pharmacy benefit) since it's given by IV infusion.

Can I request an expedited appeal? Yes, if treatment delay would seriously jeopardize your health. Your oncologist must certify the urgency.

Does step therapy apply if I've tried treatments outside Illinois? Previous treatments count regardless of location. Provide documentation of prior therapies and outcomes.

What counts as medical necessity for Keytruda? FDA-approved indications, appropriate biomarker status, proper treatment sequence, and failure/contraindication of required first-line therapies.

How much does Keytruda cost with Humana coverage? Under Medicare Part B, you typically pay 20% coinsurance after meeting the deductible. Costs vary by specific plan and supplemental coverage.

When to Contact Illinois Regulators

Contact the Illinois Attorney General Health Care Bureau if:

  • Humana delays processing appeals beyond legal timeframes
  • You need help navigating the external review process
  • You suspect coverage violations or unfair claim practices

Contact Information:

The Health Care Bureau can mediate disputes and ensure Humana follows Illinois insurance laws.


About Counterforce Health

Counterforce Health specializes in turning insurance denials into successful appeals for complex medications like Keytruda. The platform analyzes denial letters, identifies coverage gaps, and generates evidence-backed appeals that align with payer policies. For patients facing Humana denials, Counterforce Health can help draft medical necessity letters, gather clinical evidence, and navigate the appeals process with payer-specific expertise.

Whether you're dealing with missing biomarker documentation, step therapy requirements, or off-label use denials, having the right evidence and presentation can make the difference between approval and denial. Counterforce Health's approach focuses on meeting each payer's specific requirements while building compelling clinical cases for coverage.

Sources & Further Reading


Disclaimer: This information is for educational purposes only and does not constitute medical or legal advice. Coverage decisions depend on individual circumstances, plan details, and medical necessity. Always consult with your healthcare provider and insurance plan for personalized guidance. For official Illinois insurance regulations and consumer rights, visit the Illinois Department of Insurance.

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