CurrentUnitedHealthcarePolicy CS136KY.11

Enteral Nutrition (Oral and Tube Feeding) (for Kentucky Only)

Kentucky-specific UnitedHealthcare medical policy governing coverage and coding for enteral nutrition delivered orally or via tube feeding, applicable to Kentucky Medicaid/UnitedHealthcare plans in that state.

Policy Summary

PayerUnitedHealthcare

PolicyEnteral Nutrition (Oral and Tube Feeding) (for Kentucky Only)

Policy CodePolicy CS136KY.11

Change TypeRoutine review (no material change)

Effective Date2025

Next Review Date

Key ActionVerify and obtain any required prior authorization per Kentucky Administrative Regulations 907 KAR 1:479 and applicable plan rules before supplying enteral nutrition.

SourceLink

POLICY UPDATE CHANGES

Routine review; no change to coverage guidelines.

1page(s) in Coverage Rationale section

Kentuckystate-specific applicability

CS136KY.11policy identifier

Coverage Criteria and Applicability

Medical necessity linkage to state regulation

Coverage and medical necessity for enteral nutrition are determined by Kentucky Administrative Regulations 907 KAR 1:479 and by applicable federal, state, or contractual requirements.

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HCPCS and Supply Codes

Applicable HCPCS codes (excerpt)HCPCS

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, administered through an enteral feeding tube, 100 calories = unit.
B4150	Enteral formula, nutritionally complete with intact nutrients, administered through an enteral feeding tube, 100 calories = unit.

Additional HCPCS codes (excerpt)HCPCS

B4152	Enteral formula, nutritionally complete, calorically dense (>= 1.5 kcal/ml), 100 calories = 1 unit.
B4153	Enteral formula, nutritionally complete, hydrolyzed proteins; 100 calories = unit.
B4154	Enteral formula, nutritionally complete, for special metabolic needs, excludes inherited disease of metabolism; 100 calories = unit.
B4155	Enteral formula; nutritionally incomplete/modular nutrients; 100 calories = unit.
B4157	Enteral formula, nutritionally complete, for special metabolic needs for inherited disease of metabolism; 100 calories = unit.
B4158	Enteral formula, for pediatrics, nutritionally complete with intact nutrients; 100 calories = unit.
B4159	Enteral formula; for pediatrics, nutritionally complete soy based with intact nutrients; 100 calories = unit.
B4160	Enteral formula, for pediatrics, nutritionally complete calorically dense (>= 0.7 kcal/ml); 100 calories = unit.
B4161	Enteral formula, for pediatrics, hydrolyzed/amino acids and peptide chain proteins; 100 calories = unit.
B4162	Enteral formula, for pediatrics, special metabolic needs for inherited disease of metabolism; 100 calories = unit.

S codes (medical foods / supplements)HCPCS

S9432	Medical foods for noninborn errors of metabolism.
S9433	Medical food nutritionally complete, administered orally, providing 100% of nutritional intake.
S9434	Modified solid food supplements for inborn errors of metabolism.
S9435	Medical foods for inborn errors of metabolism.

Caloric density — thresholds for specific codes

B4152 caloric densityEnteral formula calorically dense — equal to or greater than 1.5 kcal/ml (reported as B4152)

B4160 pediatric caloric densityPediatric enteral formula calorically dense — equal to or greater than 0.7 kcal/ml (reported as B4160)

Unit measurement for dense formulasB4152 and B4160 billed per 100 calories = 1 unit as described in code definitions

State-Defined Medical Necessity

State-defined medical necessity

Medical necessity criteria for enteral nutrition are defined by Kentucky Administrative Regulations 907 KAR 1:479; this policy references that regulation for clinical coverage criteria.

Reference regulation: Meet criteria in 907 KAR 1:479 for enteral nutrition medical necessity

See 907 KAR 1:479 for the specific clinical requirements that determine coverage (medical supplies, equipment and appliances covered benefits and reimbursement).

Prior Authorization, Documentation, and Provider Responsibilities

Prior Authorization

Reference governing benefit documents

Prior authorization requirements are governed by applicable federal, state, and contractual benefit documents. Always check the member's plan, applicable state regulations (e.g., Kentucky Administrative Regulations 907 KAR 1:479 for medical supplies/equipment/appliances), and any Medicaid or other government program rules before submitting requests. If there is a conflict between this Medical Policy and the member's governing benefit documents, the federal, state, or contractual requirements control.

Verify member coverage and any state-specific prior authorization requirements before providing services.
When applicable, follow InterQual or UnitedHealthcare criteria only as an implementation of the governing benefit documents — these do not override federal/state/contractual requirements.

Documentation Required

Documentation and recordkeeping

Providers must obtain and retain documentation that supports medical necessity as required by the member's governing benefit documents and applicable state regulations. Documentation should include diagnoses, clinical rationale for enteral nutrition (oral or tube feeding), duration, product type/volume, previous conservative treatments, and relevant provider notes.

Attach clinical notes and any required prior authorization forms to the authorization request.
Maintain documentation for audit and reimbursement purposes per contract and state record retention rules.

Billing Rule

Coding inclusion does not guarantee coverage

Coding lists in this policy are for reference only and do not guarantee coverage or payment. Inclusion of a code does not imply coverage; reimbursement is determined by the member's plan, federal/state/contractual requirements, and any applicable medical necessity criteria.

Use the member's governing benefit documents to determine coverage and billing.
Submit prior authorization and claims with the most specific ICD-10, CPT, or HCPCS codes supported by documentation.

Note

Provider guidance and policy intent

This Medical Policy provides interpretive guidance and references InterQual as the primary clinical criteria source used by UnitedHealthcare. It is informational and does not constitute medical advice. Always reconcile policy guidance with the member's specific plan documents and applicable legal requirements prior to clinical or billing actions.

When InterQual lacks applicable criteria, UnitedHealthcare may apply other approved Medical Policies or Utilization Review Guidelines as allowed by state oversight (e.g., Kentucky Department for Medicaid Services).
UnitedHealthcare may modify policies; providers should confirm the effective policy and plan terms at time of service.

Documentation and Prior Auth Processes

Documentation Required

Document per plan and state regulations and follow PA processes

When documenting medical necessity and submitting prior authorization requests, providers must reference and follow the applicable federal, state, or contractual benefit plan requirements and any required prior authorization processes; UnitedHealthcare relies on InterQual for primary criteria and may use approved UHC guidelines when InterQual is not applicable.

Include citations to 907 KAR 1:479 where relevant to support medical necessity.
Follow the payer’s PA submission instructions and supply any InterQual or UHC guideline documentation requested during review.

Rental, Purchase, and Supply Rules

Item / Equipment	Rental vs Purchase Rule	Notes / Action
Enteral nutrition supplies and formulas (includes enteral formulas, food thickeners, additives, medical foods, modified solid food supplements)
No explicit rental vs purchase rules provided in this policy document
Follow Kentucky Administrative Regulations (907 KAR 1:479) and the applicable federal, state, or contractual benefit plan terms to determine rental vs purchase treatment; providers should verify plan-level prior authorization and documentation requirements before billing.

Replacement and Supplies Guidance

Enteral nutrition supplies/formulas — provider key facts (replacement & authorization)

Prior authorizationCoverage decisions follow Kentucky Administrative Regulations 907 KAR 1:479; providers should verify plan-level prior authorization requirements for listed enteral nutrition codes (B41xx, B41xx pediatric, S94xx).

Codes includedRelevant HCPCS codes include B4100, B4102–B4104, B4149–B4150, B4152–B4162 and S9432–S9435; listing of a code does not by itself indicate coverage — check state/plan rules.

Documentation and governing rulesWhen deciding coverage, reference federal, state, or contractual benefit plan requirements and applicable laws; InterQual and UHC guidelines may be used for utilization review.

Replacement/rental guidanceNo explicit rental vs purchase or replacement intervals provided in this policy; follow state regulations and applicable plan terms for enteral nutrition supplies and formulas.

Background — Enteral Nutrition Overview

Enteral nutrition includes formulas and related products designed for oral or tube administration to meet the distinct nutritional needs of disease states under physician supervision. This policy references a range of enteral products (for example, food thickeners, formulas for adults and pediatrics, additives, blenderized and nutritionally complete formulas) and distinguishes medical foods and supplements used for dietary management of specific conditions. Use of these products must meet applicable medical necessity criteria and benefit plan requirements.

Key Definitions

Medical foods — definition and related terminology

Definition of medical foodsFormulated to be consumed or administered enterally under physician supervision for the specific dietary management of a disease or condition with distinctive nutritional requirements; not drugs and regulated under FDA food requirements.

Regulatory noteMedical foods are not subject to drug-specific regulatory requirements but manufacturers must comply with applicable FDA food requirements.

Related HCPCS S-codesS9432 (medical foods for noninborn errors), S9433 (nutritionally complete medical food, oral), S9434 (modified solid food supplements for inborn errors), S9435 (medical foods for inborn errors of metabolism).