B4157 Enteral formula, nutritionally complete, for special metabolic needs for inherited disease of metabolism, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit

Short descriptor: Ef special metabolic inherit

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B4157 is the HCPCS Level II code for Enteral formula, nutritionally complete, for special metabolic needs for inherited disease of metabolism, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit (2026). It belongs to Section B — Enteral & Parenteral Therapy. Under Medicare, its coverage status is: Special coverage instructions apply. Part B pricing methodology: Parenteral and enteral nutrition.

Classification & CMS Attributes

Medicare Coverage
Special coverage instructions apply (code D)
Part B Pricing
Parenteral and enteral nutrition (indicator 39)
Type of Service
Enteral/parenteral nutrients & supplies
Effective Date
2005-01-01
2026 Maintenance
No change this year

References

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Reference B4157 with the canonical source and edition:

B4157 — Enteral formula, nutritionally complete, for special metabolic needs for inherited disease of metabolism, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit. ICD-10 Coding Pro (HCPCS Level II 2026). https://icd10codingpro.com/hcpcs-codes/B4157

Canonical URL: https://icd10codingpro.com/hcpcs-codes/B4157

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2026-01-01

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