Currentselect_healthPolicy CCP.1524

Oral Nutritional Supplements

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This policy governs coverage and medical necessity criteria for prescribed oral nutritional supplements, medical foods, and related medical nutrition products for Select Health of South Carolina members. It applies to providers seeking coverage determinations for these products.

Policy Summary

Payerselect_health

PolicyOral Nutritional Supplements

Policy CodePolicy CCP.1524

Change TypeClarified and revised (2025 operational and reference updates)

Effective DateApr 1, 2023

Last ReviewMay 1, 2026

Next Review DateSep 1, 2027

Key ActionObtain prior authorization and document that the oral nutritional supplement is specially formulated for a medical need with a nutritional assessment and justification.

SourceLink

OpenPayer is powered by Trek Health's payer performance platform. Trek continuously ingests, validates, and normalizes Transparency in Coverage data alongside payer policies and other commercial payer data to create a structured payer intelligence foundation. OpenPayer uses this foundation to deliver personalized search results, dynamically generated policy pages, and tailored policy monitoring based on each user's payers, specialties, billing codes, and areas of interest. The same intelligence powers broader payer performance workflows, including reimbursement benchmarking, contract evaluation, payer negotiations, and financial decision-making.

Currentselect_healthPolicy CCP.1524

Oral Nutritional Supplements

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Policy Summary

Payerselect_health

PolicyOral Nutritional Supplements

Policy CodePolicy CCP.1524

Change TypeClarified and revised (2025 operational and reference updates)

Effective DateApr 1, 2023

Last ReviewMay 1, 2026

Next Review DateSep 1, 2027

Key ActionObtain prior authorization and document that the oral nutritional supplement is specially formulated for a medical need with a nutritional assessment and justification.

SourceLink

POLICY UPDATE CHANGES

Limitations section was amended to ensure certain options are available with medical justification for members younger than age 21.

Coverage modified during 5/2025 policy update (references updated and coverage modified).

multipleGuideline sources

10+Not medically necessary categories

94 RCTsCochrane trials

cancer/COPD/CHF/pancreatitisDisease evidence sections

Coverage and Medical Necessity Criteria

General medical necessity criteria

Covered when ALL of the following are met:

General coverage requirements: The oral nutritional supplement is specially formulated to address a medical need; is prescribed for the treatment of the member's medical needs; the member has either a limited or impaired capacity to ingest, digest, absorb, or metabolize ordinary foodstuffs OR other special medically determined nutrient requirements that are different from those of healthy people; reversible causes have been ruled out; and a nutritional assessment with justification is provided.

References: Arvanitakis 2020; Cederholm 2017; FDA medical food definition

Pediatric (age <21) covered indications

For members younger than age 21, ONS may be medically necessary for ANY of the following:

Age <21 covered indications: Metabolic diseases or inborn errors of metabolism to prevent complications resulting in severe intellectual disability and death; severe food allergies refractory to dietary and other treatments (including immunoglobulin E-mediated food protein allergies, food protein–induced enterocolitis syndrome, eosinophilic esophagitis/gastroenteritis/colitis); cystic fibrosis with failure to achieve optimal growth and nutritional status with oral intake and pancreatic enzyme replacement therapy alone; as the sole source of nutrition for disorders impeding passage/absorption (eg short bowel syndrome, intestinal fistula, intestinal dysmotility, mechanical obstruction, extensive small bowel mucosal disease); other state-mandated indications; other indications determined case-by-case.

References: Genetic Metabolic Dietitians International; Turck 2016; Cuerda 2021

Adult covered indications (age 61)

For members 21 years or older, ONS may be medically necessary for ANY of the following:

Adult (≥21) covered indications: Metabolic diseases or inborn errors of metabolism to prevent complications resulting in severe intellectual disability and death; as the sole source of nutrition for disorders impeding passage/absorption and macronutrient uptake (eg short bowel syndrome, intestinal fistula, intestinal dysmotility, mechanical obstruction, extensive small bowel mucosal disease); cystic fibrosis with failure to achieve optimal growth rates and nutritional status with oral intake and pancreatic enzyme replacement therapy alone; other state-mandated indications; other indications determined case-by-case.

References: Cuerda 2021; Freeman 2021; Turck 2016

Not medically necessary / investigational

Not medically necessary / investigational when ANY of the following apply:

Pediatric not medically necessary: Prescribed in the absence of a clear medical justification; based on food preference or member convenience; for treatment of mild-to-moderate food allergies or food intolerance that can be addressed by diet modification.

Reference: National Institute of Allergy and Infectious Diseases 2010

Adult not medically necessary: For members with dementia to improve cognitive performance or prevent cognitive decline; prescribed in the absence of a clear medical justification; based on food preference or member convenience; for treatment of mild-to-moderate food allergies or food intolerance that can be addressed by diet modification.

Reference: Volkert 2015

Evidence summaries by condition

Evidence-based findings by clinical condition:

Chronic pancreatitis: Limited evidence suggests improved body weight and pain control from nutritional interventions including ONS; higher-quality research is needed to assess effects on body composition and functional outcomes.

Phillips 2022; Wiese 2021

Older adults: Cochrane network meta-analysis and other reviews show ONS may reduce all-cause mortality and serious adverse events in hospitalized older adults at risk of malnutrition, and may reduce hospitalizations up to six months; overall evidence is low to very low certainty.

Kiesswetter 2026; Baldwin 2021; Thomson 2022

Eosinophilic esophagitis: Moderate-certainty evidence that elemental diets are effective for histopathologic remission; observational studies show large effect size versus historical controls.

Rank 2020

Dialysis:

The policy explicitly excludes routine use of standard oral polymeric formulas (for example, Boost®, Ensure®, NeoSure®, PediaSure®) when there is no documented medical justification. These products are listed under the policy limitations and are considered not medically necessary as medical foods unless the provider documents a specific clinical rationale demonstrating that a specially formulated product is required to meet the member’s medical needs.

Reference updates were performed in 2024 and 2026 with no changes to coverage. During a 2025 update the policy wording was amended to clarify the limitations section so that certain options may be available for members younger than age 21 when there is appropriate medical justification documented.

Prescribing oral nutritional supplements (ONS) without evidence of a medical need—such as when ordered for convenience, preference, or for mild-to-moderate food allergy or intolerance that can be managed by diet modification—is not medically necessary. The policy also identifies common inappropriate uses: routine provision of standard oral polymeric formulas without clinical justification, use of oral additives or thickeners without justification, and high-protein powders or nonprescription weight products absent a documented medical indication. Providers should document the specific medical rationale and supporting nutritional assessment when prescribing ONS.

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Coding and Billing Codes

Related HCPCS Codes (commonly submitted)HCPCS

B4034	Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape.
B4035	Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape.
B4036	Enteral feeding supply kit; gravity fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape.
B4103	Enteral formula, for pediatrics, used to replace fluids and electrolytes (e.g., clear liquids), 500 ml = 1 unit.
B4148	Enteral feeding supply kit; elastomeric control fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape.
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, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit.
B4153	Enteral 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.
B4154	Enteral formula, nutritionally complete, for special metabolic needs (non-inherited), includes altered composition of proteins, fats, carbohydrates, vitamins and/or minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit.
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.

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inv-11: Weight gain associated with functional improvement — key evidence point

Evidence thresholdWeight gain of ≥ 2 kg was associated with improved inspiratory/expiratory muscle strength and handgrip strength in COPD randomized trials (meta-analysis of 10 RCTs, n=448).

Study contextFindings derived from a systematic review of 10 randomized controlled trials in participants with stable COPD showing functional strength improvements linked to weight gain.

Measure typesReported improvements included inspiratory and expiratory muscle strength and handgrip strength (statistically significant at P = .041 and P = .05 respectively).

Provider Actions, Authorization, and Documentation

Prior Authorization

Request prior authorization to demonstrate medical necessity

Prior authorization is implied for prescribed oral nutritional supplements to establish medical necessity. Authorization should document that the ONS is specially formulated to address a medical need, is prescribed for treatment of the member's medical needs, reversible causes have been ruled out, and a nutritional assessment with justification is provided.

Prior Authorization

Obtain authorization for commonly billed HCPCS codes

Providers should request prior authorization when billing services/items commonly submitted under the listed HCPCS codes (e.g., B4034, B4150, B4152, B9002). Use the appropriate code and include clinical justification in the authorization request.

Commonly submitted HCPCS codes include B4034, B4035, B4036, B4103, B4148, B4150, B4152, B4153, B4154, B4157, B4158, B4159, B4160, B4161, B4162, B9002.

Background and Rationale

Malnutrition (undernutrition) refers to deficiencies or imbalances in energy and/or nutrients that impair body function and clinical outcomes. Causes include inadequate dietary intake, malabsorption, increased metabolic demands, chronic disease or treatment-related losses, genetic metabolic disorders, and anatomical or physiologic conditions that impede passage or absorption of nutrients. Oral nutritional supplements and medical foods are prescribed when ordinary diet is insufficient to meet the patient’s nutritional requirements and are intended to address distinctive nutritional needs under medical supervision.

Definitions

inv-21: Oral nutritional supplements / Medical foods — definitions and use cases

Definition — Oral nutritional supplements (ONS)Prescribed formulas that are either nutritionally complete (can be sole source of nutrition) or nutritionally incomplete elemental or semi‑elemental formulas designed to meet unique nutritional needs of a medical condition.

Definition — Medical foodsProducts formulated to be consumed or administered enterally under physician supervision for the specific dietary management of a disease with distinctive nutritional requirements; must be specially formulated and used under active medical supervision (FDA definition).

Typical use casesUsed to increase BMI or weight, prevent complications of malnutrition, provide sole‑source nutrition for disorders impairing ingestion/absorption, or meet disease‑specific nutrient requirements when diet alone is insufficient.

Regulatory noteFDA guidance: medical foods are intended for dietary management of therapeutic or chronic medical needs and cannot be met by normal diet modification alone; must be consumed enterally under physician supervision (21 U.S.C. 360ee[b][3]; FDA guidance 2023).

Policy Summary

Payerselect_health

PolicyOral Nutritional Supplements

Policy CodePolicy CCP.1524

Change TypeClarified and revised (2025 operational and reference updates)

Effective DateApr 1, 2023

Last ReviewMay 1, 2026

Next Review DateSep 1, 2027

Key ActionObtain prior authorization and document that the oral nutritional supplement is specially formulated for a medical need with a nutritional assessment and justification.

SourceLink

On This Page

Low-quality RCTs (16 trials, n = 910) showed ONS increased lean body mass but not muscle strength or performance; other reviews show improved albumin and BMI though many trials had high risk of bias.

Wound healing: In long-term care patients with moderate-to-severe pressure ulcers and impaired nutrition, formulas enriched with arginine, zinc, and antioxidants improved healing at eight weeks; evidence across other wound types is inconclusive.8 weeks

Cereda 2017; Daher 2022; Moore 2020

Step Therapy

Consider alternative covered nutrition services

Consider guideline-directed standard of care and other covered nutrition services before or alongside ONS; alternative covered services include enteral nutrition, parenteral nutrition, and nutritional counseling when clinically appropriate.

Guideline-directed standard of care
Enteral nutrition
Parenteral nutrition
Nutritional counseling

Note

Align requests with age-specific indications and limitations

Ensure prior authorization and documentation reflect the member's age-specific indications and exclusions per policy when requesting coverage determinations.

Documentation Required

Provide required clinical documentation with requests

Document that the oral nutritional supplement is specially formulated to address a medical need, is prescribed for treatment of the member's medical needs, and provide a nutritional assessment with justification; for medical foods, document use under physician supervision to manage distinctive nutritional requirements.

Statement that product is specially formulated to address a medical need
Prescription indicating treatment purpose
Nutritional assessment and justification
Evidence that reversible causes were ruled out
For medical foods: documentation of enteral administration under physician supervision and distinctive nutritional requirements

Documentation Required

Supply supporting evidence-aligned clinical documentation

Include or be prepared to supply clinical documentation aligned with the policy's evidence base (search strategy and reference list maintained) to demonstrate the indication (e.g., malnutrition risk, specific diagnosis) when requesting coverage.

Clinical documentation demonstrating indication consistent with referenced evidence
Relevant citations or guideline references where available

Denial Risk

Denial risk if product is a listed non-covered item

There is a denial risk when the requested product is among those listed as not medically necessary (for example, standard oral polymeric formulas such as Boost, Ensure, NeoSure, or PediaSure) unless a medical justification is provided.

Oral polymeric standard formulas (Boost, Ensure, NeoSure, PediaSure) absent medical justification
Oral organic formulas, self-blenderized formulas, oral additives/thickeners without justification
Individual vitamin/mineral supplements, high-protein powders without justification
Fluid and electrolyte replacements for members age ≥21

Billing Rule

Risk of coding-related denials if inappropriate codes used

Denials may occur if billing does not use appropriate commonly submitted HCPCS codes; ensure coding aligns with the codes listed in the policy and include supporting clinical justification.

Verify and use the HCPCS codes listed in the policy when submitting claims
Include clinical justification with prior authorization and claim submissions

inv-22: Medical foods / Oral nutritional supplements — regulatory and terminology guidance referenced

Regulatory sourceU.S. Food and Drug Administration definition and guidance for medical foods (21 U.S.C. 360ee[b][3]; FDA guidance document, March 2023).

Key regulatory attributesMedical foods are specially formulated/processed (not natural-state food), intended for dietary management of disease, consumed enterally, and used under ongoing physician supervision.

Clinical/terminology guidanceWhen provided under medical supervision as part of a therapeutic regimen, oral nutritional supplements are considered medical foods per clinical guidance and nutrition society sources (e.g., Cederholm 2017).

Implication for coverageProducts meeting the medical food definition require documentation of physician supervision and distinctive nutritional requirements to support medical necessity.