This code system http://terminology.hl7.org/CodeSystem/entformula-additive defines the following codes:

CodeDisplayDefinition
lipid LipidModular lipid enteral formula component
protein ProteinModular protein enteral formula component
carbohydrate CarbohydrateModular carbohydrate enteral formula component
fiber FiberModular fiber enteral formula component
water WaterAdded water
 <status value="draft"/> <experimental value="false"/> <date value="2021-12-02T19:54:18-07:00"/> <publisher value="FHIR NutritionOrder team"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> </contact> <description value="EnteralFormulaAdditiveType: Codes for the type of modular component such as protein, carbohydrate or fiber to be provided in addition to or mixed with the base formula. This value set is provided as a suggestive example."/> <caseSensitive value="true"/> <valueSet value="http://terminology.hl7.org/ValueSet/entformula-additive"/> <content value="complete"/> <concept> <code value="lipid"/> <display value="Lipid"/> <definition value="Modular lipid enteral formula component"/> </concept> <concept> <code value="protein"/> <display value="Protein"/> <definition value="Modular protein enteral formula component"/> </concept> <concept> <code value="carbohydrate"/> <display value="Carbohydrate"/> <definition value="Modular carbohydrate enteral formula component"/> </concept> <concept> <code value="fiber"/> <display value="Fiber"/> <definition value="Modular fiber enteral formula component"/> </concept> <concept> <code value="water"/> <display value="Water"/> <definition value="Added water"/> </concept> </CodeSystem>