Mircera (methoxy PEG-epoetin beta) — HCPCS J0888

CareCost Estimate · Billing Cheat Sheet
Vifor Pharma / CSL Vifor 50 / 75 / 100 / 150 / 200 / 250 / 360 mcg single-dose PFS SC (NDD-CKD) or IV (in-center HD) Reviewed: May 2, 2026 ASP: Q2 2026
HCPCS
J0888
1 mcg = 1 unit
Indication
CKD only
NOT chemo / cancer
Modifier
JZ / JW
Single-dose syringe
Admin CPT
96372
SC therapeutic injection
Medicare ASP+6%
$1.033
/mcg · $206.60 / 200 mcg
BOXED WARNING (class-wide ESA): Increased death, serious CV events, thromboembolism, stroke when Hgb >11 g/dL. Use lowest dose to avoid transfusion. Mircera label does NOT carry the cancer/tumor-progression warning text (cancer indication not labeled), but cardiovascular class warning fully applies. NO ESA APPRISE REMS required (CKD-only label).
CKD-ONLY indication — the major class distinction. Mircera is FDA-approved ONLY for anemia of CKD (NDD-CKD or HDD-CKD; pediatric ≥5 yr on HD converted from another ESA). NOT approved for chemo-induced anemia, HIV, surgery, or MDS. CIA prescriptions for Mircera will be denied as off-label — switch to Aranesp (J0881) or Procrit/Epogen (J0885) and enroll in ESA APPRISE REMS.
Q4-week dosing advantage — longest interval among ESAs. Maintenance can extend to q4w once Hgb stable, vs Aranesp q1–4w and Epogen typically 3×/wk for in-center HD. One SC injection per month aligned with routine nephrology visits — eliminates infusion-suite chair time.
ESRD PPS bundling (eff. 1/1/2011): J0888 for in-center HD or home dialysis is bundled into the ESRD PPS per-treatment composite rate (~$277/tx, CY2026). J0888 reports on UB-04 TOB 072x but is NOT separately reimbursed. NDD-CKD remains separately payable Part B FFS.

Codes & NDC

HCPCSJ0888 — "Inj, epoetin beta, 1 microgram, (for non-ESRD use)" (perm., eff. 1/1/2009)
NDC (200 mcg)59353-200-01 / 59353-0200-01 (single-dose PFS)
NDC (360 mcg)59353-360-01 / 59353-0360-01 (single-dose PFS)
Strengths50 / 75 / 100 / 150 / 200 / 250 / 360 mcg PFS — no multi-dose vial, no autoinjector
Labeler59353 — Vifor Pharma / CSL Vifor (US distribution)
BenefitMedical (provider buy-and-bill); ESRD facility for HDD-CKD

Dosing

  • NDD/HDD-CKD ESA-naive: 0.6 mcg/kg SC/IV q2w → extend to q4w once Hgb stable
  • Pediatric ≥5 yr on HD: conversion from prior ESA per FDA pediatric table; q4w maintenance (2018 expansion)
  • Target Hgb 10–11 g/dL (CMS / KDIGO)
  • Iron-replete required (TSAT >20%, ferritin >100 ng/mL) before initiation
  • Bill the actual mcg administered, not the syringe size
  • Standard q4w maintenance doses: 120 / 200 / 360 mcg

ESA conversion to Mircera (q4w)

From Epogen / Procrit total weekly doseMircera q4w dose
< 8,000 IU/week120 mcg
8,000 – 16,000 IU/week200 mcg
> 16,000 IU/week360 mcg
From Aranesp: ~1:200 ratio (e.g., 60 mcg/wk → ~200 mcg q4w Mircera)
Common error: applying conversion table incorrectly (under-dosing). Document prior weekly epoetin or Aranesp dose in chart before switch.

Administration & modifiers

CodeWhen
96372SC therapeutic injection (primary, NDD-CKD)
96365 / 96374IV push/infusion (NDD-CKD office; non-PPS HD)
96401 / 96413Not appropriate — Mircera is supportive care, NOT chemo (and NOT approved for cancer)
In-center HD: admin bundled into ESRD PPS — do NOT bill 96372 separately
JZ vs JW: Single-dose PFS → JZ when dose matches strength exactly (no waste); JW for waste line when weight-based dose < syringe strength. One must be on every claim (CMS 7/1/2023). JW use rarer for Mircera than Aranesp because doses are typically fixed (120/200/360 mcg).

ESA class comparison

DrugHCPCSIntervalIndications
Mircera (PEG-epoetin beta)J0888Longest; q2–4wCKD ONLY
Aranesp (darbepoetin alfa)J0881 / J0882Long-acting q1–4wCKD + CIA
Epogen / Procrit (epoetin alfa)J0885Short; 3×/wk HDCKD + CIA + HIV + surgery
Retacrit (epoetin alfa-epbx)Q5105 ESRD / Q5106 non-ESRDShort; biosimilarCKD + CIA
Mircera advantage: longest dosing interval (q4w possible). Disadvantage: NOT approved for cancer/CIA — switch to Aranesp or Epogen if patient develops CIA.

ICD-10 by indication

ScenarioHCPCSCodes
NDD-CKD anemiaJ0888N18.3–N18.5 + D63.1
HDD-CKD (HD or PD)J0888N18.6 + D63.1 + Z99.2
Pediatric HDD-CKD ≥5 yrJ0888Same + age-appropriate (2018 expansion)
CIA / cancerNOT INDICATEDSwitch to Aranesp or Epogen
HIV / surgery / MDSNOT INDICATEDProcrit/Epogen for HIV+surgery; not Mircera

Payer requirements (May 2026)

PayerPAHgb / iron
Medicare LCDsNo (med nec)Initiate <10; deny >11; iron-replete
UnitedHealthcareYes>11 = auto-deny; TSAT >20%, ferritin >100
Aetna (CPB 0195)Yes>11 = denial; iron-replete
BCBS plansYes>11 = denial; iron-replete
Step therapy: Some commercial payers (UHC, Cigna) require Retacrit/Procrit step before Mircera. Q4w adherence rationale + prior ESA failure are common appeal arguments. Off-label use will deny without appeal.

Medicare reimbursement (Q2 2026)

FieldValue
ASP + 6%$1.033 / mcg (Apr 1 – Jun 30, 2026)
120 mcg q4w dose$123.96
200 mcg q4w dose$206.60
360 mcg q4w dose$371.88
NDD-CKD annual (200 mcg q4w × 13)~$2,686
NDD-CKD annual (360 mcg q4w × 13)~$4,834
ESRD PPS base rate (CY2026)~$277/tx (post-adjustment)

Site of care

SettingPOSNotes
Nephrology office11Primary site — SC q4w possible
Ambulatory infusion suite49Office-adjacent
ESRD facility (in-center HD)65J0888 bundled in PPS (UB-04, TOB 072x)
Patient home (PD / NDD-CKD self-admin)12Some payers cover via specialty pharmacy
Hospital outpatient22 / 19Disfavored after stability

Patient assistance — Vifor / CSL Vifor

  • Phone: 1-855-737-2200 (Vifor patient access for Mircera)
  • Mircera Co-pay Card (commercial): reduces per-dose OOP for eligible commercial patients
  • Mircera Patient Assistance Program: free product for uninsured / underinsured (income-based)
  • Foundations (Medicare): PAN Foundation, HealthWell, NeedyMeds, AKF (American Kidney Fund)
  • NO ESA APPRISE REMS: CKD-only label — no separate REMS hotline applies
  • Web: viforpharma.com
Top denials: (1) Off-label / non-CKD use (CIA, HIV, MDS, surgery) — switch ESA, do not appeal; (2) Hgb >11; (3) iron studies missing; (4) JZ/JW missing; (5) ESRD bene billed on Part B instead of UB-04 TOB 072x; (6) chemo admin code (96401/96413) used instead of 96372; (7) conversion-table under-dosing after ESA switch.
Sources: FDA Mircera PI (BLA 125164), 2007 ESA class boxed warning, 2018 FDA pediatric expansion, CMS ASP Q2 2026, CMS ESRD PPS CY2026 Final Rule, KDIGO 2012 anemia guideline, UHC ESA policy, Aetna CPB 0195, Vifor / CSL Vifor patient access. carecostestimate.com/drugs/mircera