B4193 HCPCS code: Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, 52 to 73 grams of protein - premix
B4193 is the HCPCS Level II code for parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, 52 to 73 grams of protein - premix. In 2024 Medicare paid an average of $253.64 per service for B4193 across 161,732 services. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. The NCCI unit limit is 1 per day on DME suppliers. Medicare volume fell 9% from 2022 to 2024 (177,369 to 161,732 services). In 2024, 378 suppliers billed Medicare for B4193 (purchases), serving 1,684 beneficiaries; California, New York, Ohio accounted for 28% of services.
Code details
| Field | Value |
|---|---|
| Section | B codes — Enteral and parenteral therapy |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 39 — DMEPOS: parenteral and enteral nutrition |
| BETOS category | O1C — Enteral and parenteral nutrition |
| Added | 1988-01-01 |
| Last action effective | 2002-01-01 |
Who bills B4193 (2024)
| Measure | Value |
|---|---|
| Suppliers billing rentals | — |
| Suppliers billing purchases | 378 |
| Referring clinicians | 1,726 |
| Medicare beneficiaries | 1,684 |
| States with claims | 49 |
| Share of services in top 3 states (California, New York, Ohio) | 28% |
| Year | Suppliers | Beneficiaries |
|---|---|---|
| 2022 | 415 | 1,682 |
| 2023 | 385 | 1,676 |
| 2024 | 378 | 1,684 |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for B4193, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 177,369 | 1,682 | $289.92 | $228.70 |
| 2023 | 170,871 | 1,676 | $315.86 | $247.25 |
| 2024 | 161,732 | 1,684 | $324.46 | $253.64 |
States with the most B4193 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| California | 25,102 | $253.78 |
| New York | 10,111 | $255.00 |
| Ohio | 9,282 | $254.33 |
| Texas | 8,735 | $253.74 |
| Florida | 7,154 | $254.96 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| DME suppliers | 1 | Published Contractor Policy |
Medicare policy articles for this code
- A58836: Parenteral Nutrition (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance
What changed for B4193
- 1988-01-01: B4193 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code B4193?
B4193 is the HCPCS Level II code for parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, 52 to 73 grams of protein - premix. Short descriptor: "Parenteral sol 52-73 gm prot".
How much does Medicare pay for B4193?
In 2024, the average Medicare payment was $253.64 per service (average allowed $324.46).
Does Medicare cover B4193?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
How many units of B4193 can be billed per day?
1 on DME suppliers (NCCI medically unlikely edits).
Related B41 codes
- B4100 — Food thickener, administered orally, per ounce
- B4102 — Enteral formula, for adults, used to replace fluids and electrolytes (e.g., clear liquids), 500 ml = 1 unit
- B4103 — Enteral formula, for pediatrics, used to replace fluids and electrolytes (e.g., clear liquids), 500 ml = 1 unit
- B4104 — Additive for enteral formula (e.g., fiber)
- B4105 — In-line cartridge containing digestive enzyme(s) for enteral feeding, each
- B4148 — Enteral feeding supply kit; elastomeric control fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape
- B4149 — Enteral formula, manufactured blenderized natural foods with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit
- B4150 — Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit
- B4152 — Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit
- B4153 — Enteral formula, nutritionally complete, hydrolyzed proteins (amino acids and peptide chain), includes fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit
- B4154 — Enteral formula, nutritionally complete, for special metabolic needs, excludes inherited disease of metabolism, includes altered composition of proteins, fats, carbohydrates, vitamins and/or minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit
- B4155 — Enteral formula, nutritionally incomplete/modular nutrients, includes specific nutrients, carbohydrates (e.g., glucose polymers), proteins/amino acids (e.g., glutamine, arginine), fat (e.g., medium chain triglycerides) or combination, administered through an enteral feeding tube, 100 calories = 1 unit
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Next steps
- Run a reimbursement report for a device billed under B4193
- Watch B4193 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for B4193
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.