HCPCS Level II · Enteral and parenteral therapy
B4100Food thickener, administered orally, per ounce
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About B4100
B4100 is an HCPCS Level II code in the B series (enteral and parenteral therapy), describing food thickener, administered orally, per ounce.
It was added to HCPCS effective 01/01/2003, and its current record took effect 01/01/2005.
Its Medicare coverage code is "M", meaning it is not covered by Medicare.
Details
- Short description
- Food thickener oral
- Date added
- 01/01/2003
- Action effective
- 01/01/2005
- BETOS
- Z2
Related B41xx codes
- B4102Enteral formula, for adults, used to replace fluids and electrolytes (e.g., clear liquids), 500 ml = 1 unit
- B4103Enteral formula, for pediatrics, used to replace fluids and electrolytes (e.g., clear liquids), 500 ml = 1 unit
- B4104Additive for enteral formula (e.g., fiber)
- B4105In-line cartridge containing digestive enzyme(s) for enteral feeding, each
- B4148Enteral feeding supply kit; elastomeric control fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape
- B4149Enteral 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
- B4150Enteral 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
- B4152Enteral 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
- B4153Enteral 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
- B4154Enteral 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
- B4155Enteral 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
- B4157Enteral 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
Common questions about B4100
Is HCPCS B4100 still valid?
- Yes. B4100 is active in the CMS October 2026 HCPCS file.
Does Medicare cover B4100?
- Its coverage code is "M": it is not covered by Medicare. Check the local coverage determination for your region.