B4189 · Parenteral sol amino acid &

Official description (CMS)

Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, 10 to 51 grams of protein - premix

Does Medicare cover it?

Covered only if you meet Medicare's rules

Medicare covers it when you meet its coverage rules (for example, a diagnosis or test results). Your doctor's records must show you qualify.

Rent or buy?

Per unit

Medicare pays per unit, as the description says (for example, per day or per 100 calories).

Prior authorization

Medicare doesn't require prior authorization for this code.

Doctor visit and written order

Your doctor or other practitioner must order it.

What Medicare pays

Medicare's fee schedule amount is the most Medicare approves for this item. After you meet the yearly Part B deductible, you pay 20% of the Medicare-approved amount if your supplier accepts assignment.

• Per unit

  $263.06 in every state

Amounts are per unit, as the description says (for example: each, per month, or per 50 strips).

Medicare in 2024

Bought: 258 suppliers, 651 people with Original Medicare, average Medicare-approved amount $250.68 per unit.

What to ask your insurer or supplier

1. Is HCPCS code B4189 covered by my plan? Do I meet the coverage rules?
2. Do I need prior authorization, a doctor's visit or a written order first?
3. Will I rent it or buy it? For how long?
4. Which suppliers are in my plan's network?
5. What will I pay (deductible, coinsurance or copay)? How many can I get, and how often can it be replaced?

Medicare Advantage plans, Medicaid and private insurance set their own rules, networks and prices. Use the code when you ask.

Suppliers near you

Places that billed Medicare for this exact code in 2024 are listed first, then places that billed Medicare for other products in this category, then other places enrolled with Medicare to supply this kind of product.

Used for this search only. Your location is not saved, not linked to your account, and not shared.

Enter your ZIP code above, or use your location, to see the suppliers nearest you and how far each one is.

Find suppliers for B4189

Sources

Codes and descriptions: CMS HCPCS Level II file, October 2026. Prices: Medicare DMEPOS fee schedule, October 2026 (tube feeding and IV nutrition: January 2026). Prior authorization: CMS Required Prior Authorization List, updated July 29, 2026. Doctor visit and written order: CMS list effective October 28, 2026, and 42 CFR 410.38. Supplier and patient counts: Medicare durable medical equipment data for 2024. What you pay: Medicare.gov.

This is general information from Medicare's public data, not a coverage decision. Your plan decides what it covers.