CurrentUnitedHealthcarePolicy MP.027.12

Enteral Nutrition (Oral and Tube Feeding)

UnitedHealthcare medical policy MP.027.12 for Individual Exchange benefit plans (except Wisconsin) describing medical necessity criteria for enteral nutrition delivered orally or by tube, definitions, applicable billing codes, exclusions, clinical evidence and plan-specific benefit considerations. This part (1 of 2) includes coverage rationale for oral specialized nutrient formulas, tube feeding statement referencing InterQual criteria, definitions, applicable HCPCS/B codes and exclusions for certain plans.

Policy Summary

PayerUnitedHealthcare

PolicyEnteral Nutrition (Oral and Tube Feeding)

Policy CodePolicy MP.027.12

Change TypeRevised coverage criteria; definition and evidence updates

Effective DateJun 1, 2025

Next Review DateN/A

Key ActionEnteral nutrition (oral specialized formula) must be prescribed by a physician, advanced practitioner, or registered dietician with documentation of chronicity, inability to meet needs by dietary adjustment, and that the formula is a Medical Food for a specified condition.

POLICY UPDATE CHANGES

Definition of 'Medical Food' updated.

Supporting Information section updated.

MP.027.12Policy Number

Individual Exchange (excl. WI)Scope

Coverage Summary

UnitedHealthcare medical policy MP.027.12 for Individual Exchange benefit plans (except Wisconsin) addresses medical necessity criteria for enteral nutrition delivered orally or by tube. This part (1 of 2) focuses on coverage rationale for oral Specialized Nutrient Formulas and states that tube feeding medical necessity criteria are determined by InterQual CP guidance.

Coverage stance: mixed. Policy permits oral Specialized Nutrient Formulas (Medical Foods) when specified clinical criteria are met and defers to InterQual CP: Durable Medical Equipment, Enteral and Parenteral Nutrition Therapy for tube feeding medical necessity determination.

Policy quick facts and metadata

Policy NumberMP.027.12

ScopeUnitedHealthcare Individual Exchange (all states except Wisconsin)

Applicable Codes noteMultiple HCPCS/B and S codes listed (see policy Applicable Codes section)

Exclusions summaryCertain plans may exclude food of any kind, standard infant formulas, donor breast milk, OTC nutritional supplements, commercial thickeners, and specialized formula when oral criteria not met

Clinical Guidelines referencedAcademy/ASPEN pediatric malnutrition indicators; NICE adult nutrition support; NASPGHAN/ESPGHAN GERD in infants; AGA/JTF EoE guidance

Policy effective dateJune 1, 2025

Medical-Necessity Criteria

Enteral Nutrition by Tube Feeding

Enteral nutrition administered by tube feeding is medically necessary in certain circumstances. For medical necessity clinical coverage criteria, refer to InterQual CP: Durable Medical Equipment, Enteral and Parenteral Nutrition Therapy.

Tube feeding (nasogastric, gastrostomy, or jejunostomy) is medically necessary per InterQual criteria

Clinical specifics and criteria are delegated to InterQual CP guidance

Oral Nutrition (Specialized Nutrient Formula)

Specialized Nutrient Formula administered orally is medically necessary when ALL of the following are met:

Top-level requirements

Prescriber and chronicity: A physician, advanced practitioner (NP, CNS, or PA), or registered dietician prescribes the therapy; the condition is chronic and is expected to last for an undetermined or prolonged period of time

Applicable Codes and Exclusions

Enteral nutrition HCPCS/B codes (applicable)HCPCSCovered

B4100	Food thickener, administered orally, per oz.
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).
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 (>= 1.5 kcal/ml) with intact nutrients, 100 calories = 1 unit.
B4153	Enteral formula, nutritionally complete, hydrolyzed proteins (amino acids and peptide chain), 100 calories = 1 unit.
B4154	Enteral formula, nutritionally complete, for special metabolic needs, excludes inherited disease of metabolism, 100 calories = 1 unit.
B4155	Enteral formula, nutritionally incomplete/modular nutrients, specific nutrients, 100 calories = 1 unit.

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Generally not covered / exclusions (Individual Exchange & certain plans)mixedNot Covered

	Food of any kind, infant formula, standard milk-based formula, and donor breast milk
	Nutritional or cosmetic therapy using high dose or mega quantities of vitamins, minerals, or elements and other nutrition-based therapy (supplements, electrolytes)
	Services for dietary therapy including medically supervised formula weight-loss programs, unsupervised self-managed programs, and over-the-counter weight loss formulas (Individual Exchange)
	Nutritional or dietary supplements, except as required by law; includes OTC formulas and supplements not requiring prescription
	Specialized formula when Oral Nutrition coverage criteria are not met
	Standard formula for oral intake
	Self-blenderized formulas for oral intake
	Commercial food thickeners
	Enteral formula additive for oral intake
	Electrolyte-containing fluids for oral intake used to replace fluids and electrolytes

1–10 of 12

1/2

Codes present in document (none listed in this part)mixed

No codes listed

Provider Actions / Authorization & Documentation

Prior Authorization

Tube feeding prior authorization per InterQual

Coverage for tube feeding is determined using the InterQual® Clinical Practice (CP) criteria for Durable Medical Equipment, Enteral and Parenteral Nutrition Therapy. Providers must ensure the member meets InterQual medical necessity criteria and obtain and document prior authorization according to the member's plan processes before tube feeding is provided.

Use InterQual CP: Durable Medical Equipment, Enteral and Parenteral Nutrition Therapy for medical necessity determination
Obtain prior authorization per the member-specific plan process
Document InterQual criteria met in the medical record and PA submission

Documentation Required

Prescription and clinical justification

Background and Supporting Evidence

Enteral nutrition encompasses feeding using the gastrointestinal tract and includes a normal oral diet, liquid supplements, or delivery by tube (nasogastric, gastrostomy, jejunostomy). Formulas used for enteral nutrition can be standard or Specialized Nutrient Formulas (Medical Foods) tailored to conditions that require alteration of specific dietary components or management of metabolic disorders.

This policy notes that medical necessity criteria for tube feeding are determined by InterQual CP; coverage for oral Specialized Nutrient Formulas is governed by the specific criteria in this policy. Certain plans may exclude coverage for foods, standard infant formulas, donor breast milk, over-the-counter supplements, and other listed items when plan exclusions apply.

Medical Food: A food formulated to be consumed or administered enterally under physician supervision for the specific dietary management of a disease or condition with distinctive nutritional requirements; intended for use under medical supervision (21 CFR 101.9(j)(8)).

Specialized Nutrient Formula: Formula produced to meet unique nutrient needs for specific disease conditions.

Inborn Errors of Metabolism: A group of disorders that cause a block in a metabolic pathway leading to clinically significant consequences (examples include phenylketonuria, maple syrup urine disease, urea cycle disorders).

Intellectual Disability: A neurodevelopmental disorder characterized by deficits in intellectual and adaptive functioning with onset in the developmental period.

Label	Summary
Adams et al. 2023
Systematic evidence review on phenylalanine hydroxylase (PAH) deficiency: lower phenylalanine associated with better outcomes; achieving Phe ≤ 360 μmol/L before conception substantially lowered offspring risk (OR 0.07).
Levine et al. 2019
Randomized trial in pediatric Crohn's disease: Crohn's disease exclusion diet (CDED) plus partial enteral nutrition had higher sustained corticosteroid-free remission at week 12 versus exclusive enteral nutrition (OR 3.77).
Arias et al. 2014
Systematic review/meta-analysis in eosinophilic esophagitis: amino acid‑based elemental formulas effective in ~90.8% of cases for inducing histologic remission.
Academy/ASPEN pediatric consensus
Consensus statement providing standardized indicators and thresholds to identify and document pediatric malnutrition (weight-for-height/BMI-for-age z-scores, MUAC, weight gain velocity, weight loss, deceleration in z-score).
NICE 2017
Guideline defining adult malnutrition (BMI <18.5; unintentional weight loss >10% in 3–6 months; BMI <20 with >5% loss) and at-risk criteria and recommending consideration of oral/enteral/parenteral nutrition support.
NASPGHAN/ESPGHAN 2019
Recommendation for infants with suspected GERD not responsive to nonpharmacologic measures: suggest a 2–4 week trial of extensively hydrolyzed or amino‑acid based formula; reserve amino‑acid formula for severe symptoms.

Thresholds & Measurement Criteria

Documentation thresholds and numeric criteria

Weight-for-height / BMI-for-age z scoreMild: -1 to -1.9; Moderate: -2 to -2.9; Severe: <= -3

Mid-upper arm circumference (MUAC) z scoreMild: >= -1 to -1.9; Moderate: >= -2 to -2.9; Severe: >= -3

Weight gain velocity (<2 years)Mild: <75% of norm; Moderate: <50% of norm; Severe: <25% of norm

Weight loss (2-20 years)Mild: 5% usual body weight; Moderate: 7.5%; Severe: 10%

Deceleration in weight-for-length/height z scoreMild: decline 1 z; Moderate: decline 2 z; Severe: decline 3 z

NICE adult BMI thresholdsConsider malnutrition: BMI <18.5; unintentional weight loss >10% in 3-6 months; BMI <20 with >5% weight loss in 3-6 months

Revision History

06/01/2025material_revisionLatest

Coverage criteria for Specialized Nutrient Formula administered orally revised to expand listed severe food allergy conditions and to specify gastroesophageal reflux with failure to thrive (in children). Details: replaced prior criterion listing eosinophilic esophagitis and other EGIDs with expanded list that includes food protein-induced allergic proctocolitis (FPIAP) and food protein-induced enterocolitis syndrome (FPIES); replaced wording 'Gastroesophageal reflux with failure to thrive' with 'gastroesophageal reflux with failure to thrive (in children)'. Effective date: 2025-06-01.

non_material_revisionLatest

Definition of 'Medical Food' updated (policy language revised to reference Orphan Drug Act and FDA guidance).

Policy Summary

PayerUnitedHealthcare

PolicyEnteral Nutrition (Oral and Tube Feeding)

Policy CodePolicy MP.027.12

Change TypeRevised coverage criteria; definition and evidence updates

Effective DateJun 1, 2025

Next Review DateN/A

On This Page

ONE of the following conditions

Inborn Errors of Metabolism such as phenylketonuria (PKU), maple syrup urine disease, homocystinuria, methylmalonic acidemia, propionic acidemia, isovaleric acidemia, other disorders of leucine metabolism, glutaric aciduria type I and tyrosinemia types I and II, or urea cycle disorders
Chronic kidney disease (pediatric <24 months): Chronic kidney disease (CKD) stages 2 to 5 (or on dialysis) for individuals ages less than 24 months
Crohn's disease
Severe malabsorption syndrome (such as cystic fibrosis, short bowel syndrome, or intestinal failure)
Malnutrition risk: Malnutrition or individual will become malnourished or suffer severe disorders such as physical disability, Intellectual Disability, or death if nutritional therapy is not instituted
Severe food allergies, including eosinophilic esophagitis, other forms of eosinophilic gastrointestinal diseases, food protein-induced allergic proctocolitis (FPIAP) and food protein-induced enterocolitis syndrome (FPIES) which, if left untreated, will cause life-threatening allergic reactions, malnourishment, or death
Excludes mild and moderate food allergies or food intolerance formulas that are readily available in stores/pharmacies
Gastroesophageal reflux (children): Gastroesophageal reflux with failure to thrive (in children)

Pediatric malnutrition classification (Academy/ASPEN consensus)

Indicators and thresholds recommended for identification and documentation of pediatric malnutrition:

Weight-for-height or BMI-for-age z-score single data point: Mild Malnutrition = z score -1 to -1.9; Moderate Malnutrition = z score -2 to -2.9; Severe Malnutrition = z score -3 or greaterz-score thresholds as stated
Length/height-for-age z-score single data point: Mild Malnutrition = No data; Moderate Malnutrition = No data; Severe Malnutrition = z score -3
Mid-upper arm circumference single data point: Mild Malnutrition = z score >= -1 to -1.9; Moderate Malnutrition = z score >= -2 to -2.9; Severe Malnutrition = z score >= -3MUAC z-score thresholds as stated
Weight gain velocity (<2 years) when 2+ data points available: Mild Malnutrition = Less than 75% of the norm for expected weight gain; Moderate Malnutrition = Less than 50% of the norm; Severe Malnutrition = Less than 25% of the normpercent of expected weight gain
Weight loss (2-20 years) when 2+ data points available: Mild Malnutrition = 5% usual body weight; Moderate Malnutrition = 7.5% usual body weight; Severe Malnutrition = 10% usual body weightpercent weight loss
Deceleration in weight for length/height z-score (2+ data points): Mild Malnutrition = Decline of 1 z score; Moderate Malnutrition = Decline of 2 z score; Severe Malnutrition = Decline of 3 z scorez-score decline

NICE nutrition support recommendations (adult)

NICE (2017) guidance recommending when to consider nutrition support:

Criteria defining malnourished adults: BMI < 18.5 kg/m2; Unintentional weight loss > 10% within last 3-6 months; BMI < 20 kg/m2 and unintentional weight loss > 5% within last 3-6 monthsBMI and weight loss thresholds as stated

Criteria defining at-risk adults: Eaten little or nothing for > 5 days and/or likely to eat little or nothing for next 5+ days; Poor absorptive capacity and/or high nutrient losses and/or increased nutritional needs (e.g., catabolism)

Recommendation for support: Consider oral, enteral, or parenteral nutritional support, alone or in combination, for people malnourished or at risk; consider oral nutrition support for those who can swallow safely and are malnourished or at risk

NASPGHAN/ESPGHAN GERD in infants recommendation

Recommendation for infants with suspected GERD not responsive to non-pharmacologic measures:

NASPGHAN/ESPGHAN GERD in infants recommendation: Suggest a 2-4 week trial of extensively hydrolyzed formula or amino-acid based formula in formula-fed infants suspected of GERD after optimal non-pharmacological treatment has failed; reserve amino-acid based formula for patients with severe symptoms not responsive to a protein hydrolysate formula2-4 week trial

Prescriptions for oral Specialized Nutrient Formula (enteral nutrition) must be written by a physician, advanced practitioner (NP, CNS, PA), or registered dietician. Documentation must state the condition is chronic (expected to be prolonged or undetermined), that adequate nutrition cannot be achieved by dietary adjustment, and that the formula used is a Medical Food formulated for the specified condition.

Denial Risk

Exclusion-based denials for OTC/food items

Items that are commonly excluded or will be denied when plan exclusions apply or when oral specialized formula criteria are not met include ordinary food, standard infant formulas, donor breast milk, over-the-counter nutritional supplements, commercial food thickeners, and certain oral formulas readily available in stores or pharmacies.

Food of any kind and donor breast milk
Standard milk-based/standard infant formulas
Over-the-counter nutritional supplements and OTC formulas
Commercial food thickeners and enteral formula additives for oral intake
Self-blenderized standard formulas and standard oral formulas

Documentation Required

Use guideline criteria to document malnutrition

To support coverage for nutrition support or medical foods, document malnutrition using accepted guideline indicators. For pediatric patients use the Academy/ASPEN consensus indicators (weight-for-height or BMI-for-age z-scores, length/height-for-age z-score, mid-upper arm circumference, weight gain velocity, percent weight loss, or deceleration in z-score) with thresholds for mild, moderate, and severe malnutrition. For adults, use NICE criteria (BMI and unintentional weight loss) and at-risk features to justify nutrition support.

Academy/ASPEN pediatric thresholds: weight-for-height or BMI-for-age z-score: Mild -1 to -1.9; Moderate -2 to -2.9; Severe ≤ -3
Pediatric weight gain velocity (<2 years): Mild <75% of norm; Moderate <50%; Severe <25%
Pediatric weight loss (2–20 years): Mild 5%; Moderate 7.5%; Severe 10%
NICE adult criteria: BMI <18.5 kg/m2; or unintentional weight loss >10% in 3–6 months; or BMI <20 with unintentional loss >5% in 3–6 months

Prior Authorization

Coverage criteria revisions effective 2025-06-01

The revised coverage criteria for oral Specialized Nutrient Formula become effective June 1, 2025. Prior authorization requirements and PA processes will follow the updated coverage rationale as of that effective date.

Effective date: June 1, 2025
Expect prior authorization requirements to align with the revised coverage rationale

Documentation Required

Medical Food definition and physician supervision

Medical Foods are defined as products formulated for enteral administration under physician supervision for the dietary management of a disease or condition with distinctive nutritional requirements. Providers should document that the medical food is to be used under physician supervision, that it is intended for the specific disease condition, and when applicable that its cost is over and above usual foods per member benefits.

Document physician supervision and ongoing medical management for use of the medical food
Document that the product is labeled/intended for dietary management of the specific disease or condition
Document, when relevant to benefits, that costs are over and above usual foods