Summary & Overview
HCPCS Level II B4159: Pediatric Soy-Based Enteral Formula
HCPCS Level II code B4159 covers a nutritionally complete, soy-based enteral formula formulated for pediatric patients and intended for administration via enteral feeding tube. The product includes intact proteins, fats, carbohydrates, vitamins and minerals, and may contain fiber and/or iron. Units are billed as 1 unit per 100 calories.
This code matters nationally because pediatric enteral nutrition is a persistent clinical need across home health, pediatric specialty clinics, and outpatient infusion services; standardized HCPCS coding supports accurate claim submission, product tracking, and reimbursement for durable medical supply vendors and clinicians managing long-term tube feeding. Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will learn the clinical scope of the code, expected service settings, and the kinds of metrics and policy context typically associated with enteral nutrition codes — such as unit definitions, place-of-service implications, and how this code fits into pediatric nutrition management. Data not available in the input includes associated taxonomies, ICD-10 diagnosis pairings, and related codes; those items are noted as unavailable. The publication provides benchmarks, payment context, and coding considerations relevant to supply management and billing workflows for pediatric enteral formula.
Billing Code Overview
HCPCS Level II code B4159 describes an enteral formula for pediatrics that is nutritionally complete, soy based, with intact nutrients, and includes proteins, fats, carbohydrates, vitamins and minerals. The formulation may include fiber and/or iron and is intended to be administered through an enteral feeding tube. The billing unit is defined as 100 calories = 1 unit.
Service type: Enteral nutrition / feeding formula supply for pediatric patients
Typical site of service: Home health care or ambulatory infusion/feeding services where enteral tube feeding is provided, including pediatric home enteral nutrition programs and outpatient clinics that supply tube feeding products.
Data not available in the input for: associated taxonomies, ICD-10 diagnoses, related codes, and service line.
Clinical & Coding Specifications
Clinical Context
A typical patient is an infant or child with impaired oral intake due to congenital anomalies, severe food protein–induced enterocolitis, swallowing dysfunction, or failure to thrive who requires tube-based nutrition. Enteral formula B4159 is provided when the child needs a nutritionally complete, soy-based formula administered via gastrostomy or nasogastric tube. The clinical workflow begins with pediatrician or pediatric gastroenterology evaluation documenting indications for enteral tube feeding and formula choice (soy-based intact protein). A feeding plan and volume are prescribed (billing units measured as 100 calories = 1 unit). Orders are placed by the provider; durable medical equipment/infusion supplier dispenses the formula with caregiver education on tube care and administration. Follow-up visits assess growth, tolerance, allergy status, and need for formula adjustments; documentation must support medical necessity, prescribed kcal/day, and quantity dispensed for accurate billing and utilization review.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier applicable | Rarely used; default when no specific modifier applies |
22 |