CareCost Vials
4 × 100 mg
1 billing unit = 10 mg
400 mg dose → 40 billing units
J1745 · infliximab
100 mg single-dose vial · JW/JZ waste rules may apply
Calculate this patient's units ↓Typical Remicade dose: 5 mg/kg
✓ Billing units calculated
Remicade · 400 mg · 40 units
No spreadsheets, payer-rate lookup, copay-program research, or manual benefits math.
CareCost result · Original Medicare
Patient responsibility
This patient's dose · deductible met · example plan
Commercial estimates use the patient's payer-specific allowed rate and benefits.
Your Remicade dose and 40 billing units are already filled in.
| Your workflow | CareCost |
|---|---|
| Convert dose to billing units | ✓ Automatic |
| Determine JW/JZ | ✓ Automatic |
| Find payer allowed rate | ✓ Automatic |
| Apply deductible + coinsurance | ✓ Automatic |
| Check assistance options | ✓ Automatic |
| Calculate patient responsibility | ✓ Automatic |
One patient. One workflow. One estimate.
37 payer price files · Commercial + Medicare · Copay and foundation status · Deductible, coinsurance and out-of-pocket math
Remicade J1745 is billed in units of 10 mg. Ordered dose ÷ 10 mg = billing units. Example: 400 mg ÷ 10 mg = 40 billing units.
Multiply the dose in mg by 1 unit per 10 mg, then round up to the next whole unit (1 unit = 10 mg). Vials are billed in whole 100 mg single-dose units, so the units drawn from the vial are often more than the units actually administered — report the difference with JW on its own claim line, and use JZ only when nothing was discarded.
Medicare pays $31.479 per billing unit (ASP+6%, per 10 mg), effective for claims in
Q3 2026 — $1,259.16 for the 40-unit example above.
| Dose | Billing units |
|---|---|
| 100 mg | 10 |
| 200 mg | 20 |
| 300 mg | 30 |
| 400 mg | 40 |
| 500 mg | 50 |
| 600 mg | 60 |
| 700 mg | 70 |
| 800 mg | 80 |
| 900 mg | 90 |
| 1,000 mg | 100 |
JZ — no discarded drug from a single-dose container. JW — discarded drug from a single-dose container, reported on its own claim line.
J1745 × 40 JZ · 96413 × 1 · 96415 × 1.
J1745 × 38 · J1745 × 2 JW · 96413 × 1 · 96415 × 1.
96413 covers the initial hour of a chemotherapy/complex-biologic infusion; 96415 is an add-on for each additional hour. Infliximab is billed under this code family as a complex biologic agent administration, so a Remicade infusion running about two hours reports 96413 × 1 and 96415 × 1. Some payers require the non-chemotherapy codes 96365 and 96366 instead; follow the payer's policy.
Remicade is supplied as a 100 mg single-dose lyophilized powder vial — there is no other vial size. The infliximab biosimilars (Inflectra, Avsola, Renflexis) are packaged to match, also as 100 mg single-dose vials. Reconstitute with 10 mL of sterile water for injection to yield a 10 mg/mL solution, then dilute into the infusion bag. Janssen Biotech NDC for Remicade: 57894-030-01. See the FDA Remicade label (BLA 103772) for the full reconstitution and administration instructions.
J1745 is the reference-product code for Remicade; four biosimilar Q-codes cover the rest of the infliximab family — Q5103, Q5104, Q5109 and Q5121 — each billed under its own HCPCS rather than J1745. See the HCPCS hub for coding across the full family. The Medicare rate for every quarter is on the cost page →
10 billing units.
40 billing units.
J1745.
Use JZ when no drug is discarded from the single-dose container. Use JW, on its own line, for the discarded amount.
CareCost combines the drug units, payer allowed rate, patient benefits, and available financial assistance to calculate patient responsibility. Calculate this patient's estimate →
Divide the total dose in mg by 10 and round up to the next whole unit (1 billing unit = 10 mg). An 80 kg patient at 5 mg/kg is 400 mg, which bills as 40 units.
Infliximab is dosed mg/kg for every indication and supplied only in 100 mg single-dose vials, so the calculated dose rarely lands on an exact multiple of 100 mg. The gap between units drawn and units administered is reported on its own JW line.
Infliximab administration is billed with 96413 (initial hour) and 96415 (each additional hour), the codes CPT designates for chemotherapy and other complex drug or biologic administration. Some payers require the non-chemotherapy codes 96365 and 96366 instead; follow the payer's policy.
$31.479 per billing unit (ASP+6%, per 10 mg), effective for claims in Q3 2026.
Q3 2026 ASP, effective July 1 · payer policies verified May 2026 · page reviewed
Sources: CMS ASP pricing files (Q3 2026); manufacturer prescribing information (Janssen, Pfizer, Organon, Amgen, 2025–2026); 30 commercial payer medical policies verified May 2026; CPT codebook administration-code guidance.