Benlysta (J0490): Medicare coverage & FDA-indicated diagnoses

Benlysta (Belimumab) · Part B depends on the route (8 of 8 MACs) · 9 FDA-indicated ICD-10 codes

Part B covers Benlysta (J0490) only in the form given in the office: all 8 Medicare contractors list it as route-dependent, and the self-injected form is excluded. Page reviewed Aug 23, 2026.

Page reviewed Aug 23, 2026 · from FDA-approved labeling (Drugs@FDA) — no drug-specific Medicare LCD

Quick answer

Medicare benefit
Part B (physician-administered)
FDA-indicated diagnoses
9 ICD-10 codes
Governing policy
FDA indications (no LCD)
Contractor (MAC)
Per medical necessity
Source
FDA labeling
Page reviewed
Aug 23, 2026
HCPCS codes covered:
J0490
No drug-specific Medicare coverage article exists for Benlysta. Coverage is decided per medical necessity by your MAC. The FDA-approved indications below are the labeled uses Medicare generally pays for; an off-label use may be covered if supported by an approved compendium. Find your MAC by state →

What Medicare pays for Benlysta (2026 Q4)

2026 Q4 payment limit per billing unit for Benlysta’s HCPCS code (how ASP + 6% works):

HCPCSDescriptionPer unitAllowed (ASP + 6%)
J0490Belimumab injection10 mg$58.333

CMS ASP Drug Pricing File, 2026 Q4. Benlysta patient out-of-pocket estimate →

Worked billing example for Benlysta

A concrete, paste-checkable example using J0490’s own billing-unit basis and vial sizes — not a hypothetical.

Scenario700 mg maintenance dose — 10 mg/kg IV q4wk for a 70 kg reference patient
Dose administered700 mg
Billing unit basis1 unit = 10 mg
Billing units (dose ÷ unit basis, rounded up)70 units of J0490
Vial combination drawn (min-waste plan)6 × 120 mg vials
Discarded (waste)20 mg
Wastage modifier (JW / JZ)Bill the 70 administered units on one claim line (no wastage modifier), and the 2 discarded units on a separate line with JW. Do not add JZ — JW and JZ are never billed together for the same drug on the same date of service. JW vs JZ, with examples →
Medicare allowable (ASP + 6%, 2026 Q4)72 units × $58.333/unit = $4199.98

Allowable, not paid: sequestration and the covered diagnosis still apply.

Dose source: drugs/benlysta.html — FAQ: "a 700 mg dose (70 kg patient × 10 mg/kg) is billed as 70 units.". Different dose or drug? Compute your own dose → or estimate the full cost & patient out-of-pocket →.

Benlysta (HCPCS J0490) is paid under Part B only when the claim’s ICD-10 code is one the MAC accepts; otherwise expect a CO-50 denial. How Part B drug coverage is decided →

Covered ICD-10 diagnoses for Benlysta

The 9 FDA-approved indications for J0490, grouped by condition — filter to find a code.

Systemic Lupus Erythematosus — 6 diagnoses (applies to J0490)

Diseases of the musculoskeletal system & connective tissue (6)

ICD-10Covered diagnosis
M32.10SLE, organ or system involvement unspecified
M32.11Endocarditis in SLE
M32.12Pericarditis in SLE
M32.13Lung involvement in SLE
M32.19Other organ or system involvement in SLE
M32.9SLE, unspecified

Lupus Nephritis — 2 diagnoses (applies to J0490)

Diseases of the musculoskeletal system & connective tissue (2)

ICD-10Covered diagnosis
M32.14Glomerular disease in SLE
M32.15Tubulo-interstitial nephropathy in SLE

SLE — 1 diagnoses (applies to J0490)

Diseases of the musculoskeletal system & connective tissue (1)

ICD-10Covered diagnosis
M32.8Other forms of systemic lupus erythematosus

What commercial payers require for Benlysta

Medicare Part B is only half the answer — most Benlysta claims are adjudicated by a commercial plan with its own medical policy. Below is what 26 commercial payers publish for Benlysta, read from each payer's own policy document. 25 of 25 that state a position require prior authorization (1 do not say clearly, so confirm those on the call), and 14 run a site-of-care program that can push the infusion out of the hospital outpatient setting.

PayerPrior authPreferred product firstSite of careIndications namedPolicy date
Aetna policy ↗Required—True; Utilization Management Policy on Site of Care for Specialty Drug Infusions applies12026-06-10
Anthem / Elevance policy ↗Required——22022-08-19
Arkansas BCBS policy ↗Required—Site-of-care program applies22026-08-19
BCBS Federal Employee Program policy ↗Required——22025-10-01
BCBS Kansas policy ↗Required—Site-of-care program applies2—
BCBS Louisiana policy ↗Required——22025-08-01
BCBS Michigan policy ↗Required—Site-of-care program applies22026-06-11
BCBS Minnesota policy ↗Required——22025-04-07
BCBS Mississippi policy ↗Required——2—
BCBS Nebraska policy ↗Required——22025-11-05
BCBS South Carolina policy ↗Required—Site-of-care program applies2—
BCBS Tennessee policy ↗Required——22025-09-30
Blue Shield of California policy ↗Required—preferred site of service required for certain plans; home, physician office, or independent infusion center not associated with a hospital22026-05-01
Capital BlueCross policy ↗Required——2—
CareFirst BCBS policy ↗Required—outpatient hospital1—
Centene / Ambetter policy ↗Required——1—
Cigna policy ↗Required—Site-of-care program applies22026-06-01
Excellus BCBS policy ↗Required—Site-of-care program applies22026-07-01
Florida Blue policy ↗Required——12026-07-01
HCSC (IL/TX/OK/NM/MT) policy ↗Required—BCBS lists Benlysta (J0490) for Infusion Site of Care review: the payer reviews the medical need for the drug AND the place of infusion. Confirm the infusion site is approved with the prior authorization.22026-05-01
Highmark BCBS policy ↗Required—administered in a physician’s office not affiliated with a hospital, specialized infusion centers not affiliated with a hospital or in the home22024-08-26
HMSA (BCBS Hawaii) policy ↗Required——22026-04-01
Horizon BCBS NJ policy ↗Required—Refer to separate policy on Site of Administration for Infusion and Injectable Prescription Medications; Policy #14212020-09-11
Independence Blue Cross policy ↗Not stated — confirm on the call——22022-10-24
Premera Blue Cross policy ↗Required—Benlysta (belimumab) IV is subject to review for site of service administration.12026-07-02
UnitedHealthcare policy ↗Required—Benlysta is on UnitedHealthcare's Provider Administered Drugs – Site of Care list (updated 10/01/2026). An infusion in a hospital outpatient department (place of service 19 or 22) has to meet that policy's criteria; a physician office, home infusion or ambulatory infusion suite is an accepted alternative.22025-12-01

What Benlysta payers put in writing

Quoted from the medical policies linked above — 28 distinct requirements across 26 payers. These are the sentences an appeal has to answer.

Clinical prerequisites — what must be true before they pay

Prior authorization

Quantity and frequency limits

Dosing rules

Reauthorization / continuation

Site-of-care restrictions

Read from each payer's published medical policy between 2026-08-03 and 2026-08-13. Every requirement above is quoted from the policy it links to. Commercial policy changes without notice — confirm before you bill.

How to bill Benlysta

Put a medically necessary, FDA-indicated diagnosis from the list above on the claim line with J0490. Matching codes, units and JZ/JW wastage →

Which policy governs Benlysta

No drug-specific LCD or Article — see the note at the top of this page. Find your MAC → What an LCD, an Article and an NCD each govern →

If a claim for Benlysta is denied

With no drug-specific Article, the usual cause is a diagnosis the MAC does not accept as medically necessary for J0490, or an off-label use with no compendium support. The five denial patterns and how to fix each →

Frequently asked questions

Is Benlysta covered by Medicare?
It depends on how it is given. All 8 Medicare Administrative Contractors list Benlysta (J0490) as route-dependent on their self-administered drug lists: the form given in the office by a clinician is covered under Part B when medically necessary, and the self-injected form is excluded from Part B.
What diagnoses are covered for Benlysta (J0490)?
Medicare publishes no drug-specific covered-diagnosis list for J0490. The 9 ICD-10 codes here are the FDA-approved indications; an off-label use needs approved-compendium support (DrugDex, NCCN) to be payable.
Which Medicare policy covers Benlysta?
Each Medicare Administrative Contractor's self-administered drug (SAD) exclusion article decides whether Part B pays: part b depends on the route (8 of 8 macs). No drug-specific LCD or Billing & Coding Article exists for Benlysta.
Why was my Benlysta claim denied as not medically necessary?
The most common cause is a diagnosis the MAC doesn't consider medically necessary for J0490. Bill a covered/FDA-approved indication from the list below, document medical necessity, and confirm any local guidance with your MAC.

Related references

Covered is only half the answer.

You know the diagnosis is payable. Now quote the patient before the visit and catch underpayments: get Benlysta's exact Medicare allowed amount, your payer's rate vs. ASP+6%, and the patient's out-of-pocket — in about 30 seconds, free.

Estimate Benlysta cost & patient owe →

Source & verification

Source
FDA-approved indications (Drugs@FDA labeling) mapped to ICD-10-CM. No drug-specific Medicare LCD/Article exists for Benlysta — Part B coverage is determined per medical necessity by your MAC.
Primary sources
DailyMed — Benlysta prescribing information · CMS Part B Drug ASP Pricing File — the quarterly payment limit quoted above · CMS Medicare Coverage Database — searched for “Benlysta”; no drug-specific NCD, LCD or Billing & Coding Article exists, which is why the FDA-indicated codes above are the working list
Page last reviewed by CareCost
Aug 23, 2026 (coverage data retrieved 2026-09-21; we re-verify against CMS quarterly).
Notes
ICD-10-CM is public domain; CPT® (AMA) is intentionally not listed. Reference, not billing advice — built from the CMS Coverage API per our methodology; corrections to editorial@carecostestimate.com.