Cigna modified Policy A022 governing enteral formula and supplies coverage, effective September 26, 2025. Here's what billing teams need to do.
Cigna Healthcare updated its administrative coverage policy for enteral nutritional formula and related supplies under Policy A022. The change reinforces that coverage depends entirely on individual benefit plan language — and that for many plans, enteral formula, equipment, and supplies under HCPCS codes B4149, B4150, B4152, B4153, B4158, B4159, B4160, B4161, S9432, and S9433 are specifically excluded. If your team bills any of these codes for Cigna members, you need to verify benefit plan language before submitting — not after a denial.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Cigna Healthcare |
| Policy | Enteral Formula and Supplies — Administrative Policy A022 |
| Policy Code | A022 |
| Change Type | Modified |
| Effective Date | September 26, 2025 |
| Impact Level | High |
| Specialties Affected | Gastroenterology, home infusion/enteral therapy, pediatrics, DME suppliers, nutrition support |
| Key Action | Audit all active Cigna enteral formula claims and verify benefit plan language before billing B4149–B4161, S9432, or S9433 |
Cigna Enteral Formula Coverage Criteria and Medical Necessity Requirements 2025
The core rule in the updated Cigna enteral formula coverage policy is this: coverage is not guaranteed. It depends entirely on the member's specific benefit plan language. That's the first thing your billing team needs to understand.
Cigna Healthcare makes clear in Policy A022 that enteral nutritional formula benefits "differ significantly across plans." There is no universal coverage rule. A member on one Cigna plan may have coverage; a member on another may not. You cannot assume coverage based on diagnosis or medical necessity alone.
When a member's plan excludes enteral nutritional formula, that exclusion is total. Equipment and supplies used solely with enteral feeding are also excluded — not just the formula itself. That means if your practice bills B4149 (blenderized natural foods formula) or B4150 (nutritionally complete formula with intact nutrients) for a Cigna member whose plan excludes enteral nutrition, those claims will not be reimbursed.
The policy explicitly cross-references Medical Coverage Policy 0136 — Nutritional Support — for conditions of coverage under the medical plan. If you're looking for medical necessity criteria to support a covered enteral claim, that's the document you need. Policy A022 is the administrative layer. MCP 0136 is where clinical coverage criteria live.
Prior authorization requirements for enteral formula also vary by plan. This policy doesn't set a universal prior auth rule — but given that coverage itself varies, prior authorization should be confirmed before starting tube feeding for any Cigna member. A claim denial after services are rendered is a much harder problem to solve.
Cigna Enteral Formula Exclusions and Non-Covered Indications
This is the section that will cause the most claim denials if your team doesn't know it.
When a Cigna member's benefit plan excludes enteral nutritional formula, the exclusion covers a wide range of products. The policy lists specific non-covered items. These are not edge cases — they're common products that billing teams sometimes assume are covered.
The following are explicitly excluded when enteral formula is not a covered benefit:
Infant and pediatric formula exclusions include standardized or specialized infant formula for food allergies, multiple protein intolerances, lactose intolerances, milk allergies, sensitivities to intact protein, gluten-free formula for celiac disease/gluten-sensitive enteropathy, protein or fat maldigestion, intolerances to soy formulas or protein hydrolysates, prematurity, and low birthweight. This is a long list, and it covers the most common reasons practices bill pediatric enteral codes like B4158, B4159, B4160, and B4161.
Other excluded items include:
| # | Excluded Procedure |
|---|---|
| 1 | Baby food |
| 2 | Grocery items blenderized for use with an enteral feeding system |
| 3 | High protein powders and mixes |
| 4 | Lactose-free products and lactose digestion aids |
| 5 | Low carbohydrate diet products |
| 6 | Normal grocery items |
| 7 | Oral or enteral formula used to replace fluids and electrolytes |
| 8 | Oral vitamins and minerals |
| 9 | Weight-loss foods and formula, including products that aid weight loss |
The blenderized food exclusion is worth flagging. B4149 covers enteral formula made from blenderized natural foods. If a member's plan excludes enteral formula, you cannot bill B4149 for blenderized whole foods used in a home feeding tube setup — even if the clinical rationale is strong.
S9432 and S9433 — which cover medical foods for noninborn errors of metabolism and nutritionally complete oral medical food — also fall under this exclusion framework when the benefit plan excludes enteral formula.
Coverage Indications at a Glance
| Indication / Product Type | Coverage Status | Relevant Codes | Notes |
|---|---|---|---|
| Enteral formula, nutritionally complete, intact nutrients | Plan-dependent | B4150 | Covered only if benefit plan includes enteral formula |
| Enteral formula, blenderized natural foods | Plan-dependent | B4149 | Excluded when enteral formula is excluded from plan |
| Enteral formula, calorically dense (≥1.5 Kcal/ml) | Plan-dependent | B4152 | Verify plan benefit before billing |
| Enteral formula, hydrolyzed proteins (amino acids/peptide chain) | Plan-dependent | B4153 | Excluded when enteral formula is excluded from plan |
| Pediatric enteral formula, intact nutrients | Plan-dependent | B4158 | Excluded for most infant formula indications under exclusion plans |
| Pediatric enteral formula, soy-based | Plan-dependent | B4159 | Soy intolerance explicitly listed as exclusion indicator |
| Pediatric enteral formula, calorically dense | Plan-dependent | B4160 | Excluded under plans without enteral formula benefit |
| Pediatric enteral formula, hydrolyzed/amino acid | Plan-dependent | B4161 | Excluded even for prematurity and low birthweight under exclusion plans |
| Medical foods, noninborn errors of metabolism | Plan-dependent | S9432 | Subject to same benefit plan exclusion framework |
| Medical foods, nutritionally complete oral formula | Plan-dependent | S9433 | Same benefit plan dependency applies |
| Specialized infant formula for food allergies | Not covered (when exclusion applies) | B4158, B4161 | Explicitly excluded per A022 |
| Specialized infant formula for lactose or milk intolerance | Not covered (when exclusion applies) | B4158, B4159 | Explicitly excluded |
| Gluten-free formula for celiac disease | Not covered (when exclusion applies) | B4158, B4161 | Explicitly excluded per A022 |
| Blenderized grocery items for enteral feeding | Not covered (when exclusion applies) | B4149 | Explicitly excluded |
| Oral vitamins, minerals, electrolyte replacement | Not covered (when exclusion applies) | S9432, S9433 | Excluded when enteral formula benefit is absent |
| Weight-loss formula and products | Not covered (when exclusion applies) | None specified | Explicitly excluded regardless of plan |
Cigna Enteral Formula Billing Guidelines and Action Items 2025
The effective date of September 26, 2025 has passed. If your team hasn't already acted on this update, start now.
| # | Action Item |
|---|---|
| 1 | Pull the benefit plan document for every active Cigna member receiving enteral nutrition. This is not optional. The A022 Cigna enteral formula coverage policy makes plan language the determining factor — not diagnosis, not medical necessity. If you don't have the plan document, you're billing blind. |
| 2 | Audit all open and recent Cigna claims for B4149, B4150, B4152, B4153, B4158, B4159, B4160, B4161, S9432, and S9433. Check each claim against the member's benefit plan language. Any claim submitted under a plan that excludes enteral formula is a denial waiting to happen — or already a denial you need to appeal. |
| 3 | Update your charge capture workflow to require benefit plan verification before submitting enteral formula claims. Build this check into your pre-claim process. "Does this member's Cigna plan cover enteral nutritional formula?" should be a required field before any B-code enteral claim goes out. |
| 4 | Check prior authorization requirements at the plan level before initiating new enteral therapy. Policy A022 doesn't set a universal prior auth rule, but individual plans do. Confirm prior authorization status before services start — not after. A denial on a long-term enteral therapy patient creates a significant accounts receivable problem. |
| 5 | Cross-reference Medical Coverage Policy 0136 — Nutritional Support for clinical criteria. If a member's plan does cover enteral formula, MCP 0136 governs the medical necessity criteria for that coverage. Make sure your clinical documentation supports the specific criteria in that policy. A022 handles the administrative exclusion layer; MCP 0136 handles the clinical one. |
| 6 | Flag pediatric enteral claims for extra scrutiny. The A022 exclusion list covers nearly every common reason practices bill B4158, B4159, B4160, and B4161 — prematurity, low birthweight, food allergies, protein intolerance, and soy intolerance are all explicitly excluded when the plan excludes enteral formula. Don't assume pediatric medical necessity overrides the plan exclusion. |
| 7 | If you're managing a high volume of Cigna enteral claims and you're not certain how to apply this policy to your payer mix, talk to your compliance officer before submitting further claims. The financial exposure here is real — especially for DME suppliers and home enteral therapy providers with large Cigna patient populations. |
| Previous Version | Current Version |
|---|---|
| Coverage is considered experimental and investigational for all indications | Coverage is considered medically necessary when specific criteria are met |
| Prior authorization is not required | Prior authorization is required for initial treatment |
| Documentation must include clinical history | Documentation must include clinical history |
| Re-review every 24 months | Re-review every 12 months with updated clinical documentation |
CPT, HCPCS, and ICD-10 Codes for Enteral Formula and Supplies Under Policy A022
Policy A022 does not list ICD-10-CM diagnosis codes. Coverage determination is made at the benefit plan level, not by diagnosis code. The codes below are the HCPCS codes governed by this policy.
HCPCS Codes — Coverage Dependent on Benefit Plan Language
| Code | Type | Description |
|---|---|---|
| B4149 | HCPCS | Enteral formula, manufactured blenderized natural foods with intact nutrients, includes proteins, fats, carbohydrates, vitamins, and minerals |
| B4150 | HCPCS | Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins, and minerals |
| B4152 | HCPCS | Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 Kcal/ml) with intact nutrients |
| B4153 | HCPCS | Enteral formula, nutritionally complete, hydrolyzed proteins (amino acids and peptide chain), includes fats, carbohydrates, vitamins, and minerals |
| B4158 | HCPCS | Enteral formula, for pediatrics, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins, and minerals |
| B4159 | HCPCS | Enteral formula, for pediatrics, nutritionally complete soy based with intact nutrients, includes proteins, fats, carbohydrates, vitamins, and minerals |
| B4160 | HCPCS | Enteral formula, for pediatrics, nutritionally complete calorically dense (equal to or greater than 0.7 Kcal/ml) with intact nutrients |
| B4161 | HCPCS | Enteral formula, for pediatrics, hydrolyzed/amino acids and peptide chain proteins, includes fats, carbohydrates, vitamins, and minerals |
| S9432 | HCPCS | Medical foods for noninborn errors of metabolism |
| S9433 | HCPCS | Medical food nutritionally complete, administered orally, providing 100% of nutritional intake |
All 10 codes are subject to the same benefit plan dependency. None are universally covered or universally excluded under A022 — plan language controls in every case. When a plan excludes enteral nutritional formula, all 10 codes are non-covered and non-reimbursable.
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