CPT® Code 99070

Last Updated: January 2026 | Verified for 2026 AMA, CPT & CMS Guidelines

Quick Reference: CPT 99070

• Definition: Supplies and materials (except spectacles), provided by the physician or other qualified health care professional over and above those usually included with the office visit or other services rendered (list drugs, trays, supplies, or materials provided).
• Category: Miscellaneous Medicine Services (Medicine Section, 99000–99082 range).
• Medicare Status: Non-covered by Medicare. All supply costs are bundled into the Practice Expense component of the Physician Fee Schedule. Do not bill 99070 to Medicare.
• Private Payers: Coverage varies widely. Always verify the individual payer’s supply billing policy before submitting. Many commercial payers require a specific HCPCS Level II code instead.
• Golden Rule: Always use the most specific HCPCS Level II code available before defaulting to 99070. Use 99070 only when no specific HCPCS code adequately describes the supply.
• Required Documentation: The specific supplies, drugs, or materials provided must be listed individually on the claim or in the medical record. Vague entries like “misc. supplies” will be denied.
• Do NOT use for: Supplies that are routinely expected and already included in the payment for the primary procedure (e.g., standard surgical trays, basic dressings, routine gloves, common bandages). CPT 99070 is one of the most misunderstood and misused codes in outpatient and office-based medical billing. It exists to allow providers to separately bill for exceptional, non-routine supplies and materials that go beyond what payers have already factored into the reimbursement for the primary service. However, due to widespread bundling policies — especially Medicare’s firm non-coverage rule — its successful use requires a precise understanding of which supplies qualify, which payers will reimburse it, and what documentation is required to survive an audit.

This guide provides a complete, up-to-date reference for physicians, mid-level providers, and medical coders who encounter 99070 in their daily practice across all specialties.

1. Official Definition, Code Range & Related Codes

CPT 99070 appears in the Medicine section of the CPT codebook under the subsection Special Services, Procedures, and Reports (codes 99000–99082). The AMA’s official full descriptor reads:

99070: Supplies and materials (except spectacles), provided by the physician or other qualified health care professional over and above those usually included with the office visit or other services rendered (list drugs, trays, supplies, or materials provided).

The phrase “over and above those usually included” is the operative clause. It establishes a threshold of exceptionality: the code does not apply to any supply that a payer’s fee schedule has already accounted for as part of the standard cost of providing the primary service.

The code explicitly excludes spectacles and eyeglasses. Vision-related supplies of that type are governed by HCPCS V-codes and other optical billing rules.

The full parenthetical instruction in the CPT manual notes: “For additional supplies, materials, and clinical staff time required during a Public Health Emergency, as defined by law, due to respiratory-transmitted infectious disease, use 99072.” This distinction is important — do not use 99070 for PPE or COVID-related infection control supplies; use 99072 instead.

Closely Related Codes in the Same Subsection:

2. When to Use CPT 99070 (and When NOT To)

Appropriate Use Cases for CPT 99070

CPT 99070 is appropriate when all three of the following conditions are met:

• The supply is truly exceptional. It goes beyond the standard supplies a typical payer expects to be used in the course of that service (e.g., a specialized casting material with unique properties, an advanced wound matrix, a specialty pharmaceutical with no J-code).
• No specific HCPCS Level II code exists. You have checked the current HCPCS Level II codebook and cannot find an A-code, Q-code, J-code, or other code that precisely describes the item.
• The payer is not Medicare or Medicaid. (For Medicaid, check your specific state’s fee schedule, as some state Medicaid programs do reimburse 99070 or have their own supply code equivalents.) For pure Medicare FFS claims, 99070 will be denied every time without exception.

Common Examples Where 99070 May Be Appropriate (Private Payer)

• A specialized biologic wound dressing (e.g., a collagen matrix) applied in office that lacks a specific Q-code or A-code for that exact product or formulation.
• An injectable drug administered in the office for which no HCPCS J-code has been assigned (e.g., certain compounded medications). In this case, 99070 is used alongside the National Drug Code (NDC) number.
• A specialized casting material (e.g., fiberglass cast) billed in addition to the casting procedure code — some payers allow this when the cast material cost is demonstrably above what was assumed in the fee schedule.
• Medical-grade cyanoacrylate wound closure agents (e.g., Dermabond, Histoacryl) when billed to certain commercial payers who have approved separate reimbursement and when no applicable HCPCS code exists. An invoice or cost documentation is strongly recommended.
• Certain custom-fabricated splint materials used in a physical or occupational therapy setting when the material cost is significant and the payer policy explicitly allows a supply charge.

When You Must NOT Use CPT 99070

• Standard surgical tray contents (dressings, suture material included in a repair code, standard gloves, gauze, saline, draping): These are bundled into the payment for the primary CPT surgical or procedural code. CMS has explicitly stated that “all supplies, such as surgical trays, are included in the payment for the procedure.”
• Any supply for a Medicare patient. CMS has bundled all supply costs into the Practice Expense Relative Value Units (PE-RVUs) of the primary service code. Medicare will deny 99070 on every claim without exception.
• Spectacles or eyeglasses — explicitly excluded by the code’s descriptor.
• Injectable drugs with an existing J-code — always use the J-code. Using 99070 when a J-code exists is a billing error that will cause denials and may trigger audits.
• Supplies that have a specific HCPCS A-, Q-, or other supply code — specificity is required. Using 99070 when a more specific code exists is considered improper billing by Medicare and most private payers.
• PPE and COVID-related infection control materials — use 99072 for Public Health Emergency-related supplies.
• Educational materials for patients — use 99071 instead. Critical Rule: The existence of CPT 99070 in your practice management software does NOT mean it will be reimbursed. The code is not self-approving. Reimbursement is entirely payer- and context-dependent. Billing it without verifying payer policy and without itemized documentation is the fastest route to a claim denial — or worse, an overpayment audit.

3. Medicare’s Non-Coverage Rule & the Bundling Principle

This is the most important section for any provider billing Medicare patients: Medicare does not separately reimburse CPT 99070 under any circumstance for physician office or outpatient services.

The Practice Expense (PE) RVU Mechanism

When CMS established the Medicare Physician Fee Schedule (MPFS) using the Resource-Based Relative Value Scale (RBRVS), it built each procedure’s total payment out of three components: Physician Work RVUs, Practice Expense (PE) RVUs, and Malpractice RVUs. The Practice Expense component was specifically designed to reimburse the overhead costs of delivering the service — including supplies, equipment, and staff time.

By embedding supply costs into the PE-RVU for every procedure code, CMS effectively pre-paid for supplies at the time the primary procedure code was reimbursed. Submitting 99070 in addition to a primary CPT code on a Medicare claim therefore constitutes an attempt to bill twice for the same supply costs — a violation of Medicare’s bundling rules.

The CMS Direct Statement

CMS’s guidance has been consistent and unambiguous: “All supplies, such as surgical trays, are included [bundled] in the payment for the procedure.” This was codified upon implementation of the practice expense component of the Medicare Physician Fee Schedule and has not changed. No Local Coverage Determination (LCD) or National Coverage Determination (NCD) overrides this blanket non-coverage rule for 99070.

What This Means in Practice

If you are treating a Medicare patient in your office and you use an expensive specialized supply or an injectable medication, the correct approach is:

• For injectable drugs: Bill the appropriate HCPCS J-code for the drug itself. Medicare reimburses most Part B drugs at 106% of the Average Sales Price (ASP). The administration fee is billed separately using the appropriate injection administration code (96372, 96374, etc.).
• For durable medical equipment or wound supplies: Use the appropriate HCPCS A-code and route through the DME MAC if applicable.
• For implantable devices: Use the appropriate HCPCS C-code (in hospital outpatient settings) or specific device HCPCS codes.
• For supplies with absolutely no HCPCS code: Bill the unlisted HCPCS code A9999 (miscellaneous DME supply) or the relevant unlisted supply code with full written documentation. Understand that reimbursement is still not guaranteed and manual review will be required.

4. CPT 99070 vs. HCPCS Level II Codes: The Hierarchy You Must Follow

The relationship between CPT 99070 and HCPCS Level II supply codes follows a strict hierarchy that virtually all commercial payers, Medicaid programs, and Medicare enforce: the most specific code available must always be used.

The Code Selection Hierarchy for Supplies

• Step 1: Check for a specific HCPCS Level II code. Search the current HCPCS codebook under the A-codes (medical/surgical supplies), Q-codes (temporary codes), J-codes (drugs), L-codes (orthotics/prosthetics), and C-codes (hospital outpatient pass-through items). If a code exists that specifically describes your supply, you must use it.
• Step 2: Check for a CPT-specific supply code. Certain procedures have associated supply codes within the CPT system itself. For example, some cast or splint codes include supply reporting instructions.
• Step 3: If no specific HCPCS or CPT supply code exists, use CPT 99070. This code is the payer of last resort for supplies — not the first tool to reach for.
• Step 4: If the payer is Medicare, stop. Do not bill 99070. Use the unlisted HCPCS code A9999 or the relevant alternative with written documentation if you believe a non-bundled supply claim is warranted.

Why Specificity Matters

Using a specific HCPCS Level II code — instead of the generic 99070 — provides multiple advantages. It links to an established fee schedule allowable, making payment more predictable. It reduces the likelihood of a manual review or denial. It creates a cleaner audit trail. And it meets the coding compliance requirements of Medicare, Medicaid, and most commercial payers who have written “use most specific code available” into their provider contracts.

Examples: 99070 vs. the Correct Specific Code

5. Private Payer & Medicaid Billing Rules

Unlike Medicare’s blanket non-coverage, private payer policies on CPT 99070 vary considerably. There is no universal commercial payer rule, which makes it essential to verify each payer’s individual policy before billing.

General Commercial Payer Tendencies

Most large commercial payers (UnitedHealthcare, Aetna, Cigna, BCBS plans) have published supply billing policies with a common thread: use HCPCS Level II codes when they exist; use 99070 only as a last resort when no specific code applies. Some payers have explicitly written that 99070 will be denied if a valid HCPCS code exists for the same supply. Others will pay 99070 at the billed charge, at AWP (Average Wholesale Price) for drugs, or at a flat contracted rate.

Key considerations for private payer billing:

• Invoice documentation: Many commercial payers require a copy of the provider’s invoice for the supply as supporting documentation when 99070 is billed. Attach the invoice or be prepared to provide it on request.
• Markup policies: Providers may bill above their cost for supplies. Industry practice for markups on supplies billed under 99070 typically ranges from 10% to 100% above the provider’s cost, depending on the practice, the supply type, and the payer contract. Always review your payer contract for fee schedule or markup limitations before applying a markup.
• Itemization requirement: The CPT descriptor for 99070 explicitly instructs providers to “list drugs, trays, supplies, or materials provided.” This is not optional — an itemized list is a built-in requirement of the code. Submitting 99070 without an itemized list is non-compliant regardless of payer.
• Bundling edits: Some commercial payers apply Correct Coding Initiative (CCI) edits or similar proprietary bundling logic. A supply that a commercial payer considers “bundled” into the primary procedure will deny 99070 just as Medicare would.

Medicaid Considerations

Medicaid policies are state-specific. Some state Medicaid programs reimburse 99070 for certain supply categories; others follow the Medicare bundling model and deny it outright. Before billing 99070 to Medicaid, consult your state Medicaid fee schedule or provider manual. In states that do allow supply billing to Medicaid, a specific HCPCS code is almost always preferred and may be required.

6. Audit-Proof Documentation Standards

The CPT 99070 code descriptor contains a built-in documentation instruction: you must list the drugs, trays, supplies, or materials provided. This transforms documentation from best practice into a code-level compliance requirement. An audit that finds 99070 billed without an itemized list has an immediate, automatic finding of non-compliant billing.

What Your Documentation Must Contain

• Specific item name: Not “wound dressing” but “3M Tegaderm Transparent Film Dressing, 10cm x 12cm.”
• Quantity used: Number of units, vials, sheets, or pieces applied or dispensed.
• Why it was needed: A brief clinical justification tying the supply to the patient’s diagnosis and treatment plan (e.g., “Specialized waterproof dressing required due to patient’s inability to keep wound dry; standard gauze contraindicated.”).
• Cost or charge information (for payers requiring invoice): The provider’s acquisition cost and/or the amount billed, if required by the payer’s policy.
• National Drug Code (NDC) for drugs: When billing for a pharmaceutical under 99070, the NDC number must be included on the claim. This is a CMS requirement for drug billing that extends to commercial payers who follow similar standards.

Documentation Examples

Weak / Non-Compliant Documentation (will fail audit):

“Supplies used during procedure. Billing 99070.”

Strong / Compliant Documentation:

“Patient required wound closure with cyanoacrylate tissue adhesive (Dermabond, 0.5 mL applicator, Qty: 1) for a 2.5 cm laceration repair. Standard suture material contraindicated due to patient’s documented latex allergy and high-tension wound site requiring flexible closure. Acquisition cost: $22.00. Billed: $35.00. Invoice available on file.”

For an injectable drug with no J-code (compounded medication):

“Compounded preservative-free methylcobalamin 1,000 mcg/mL, 1 mL vial administered IM (NDC: XXXXXXXXX). No HCPCS J-code exists for this specific compounded formulation. Acquisition cost per vial: $18.50. Billing under 99070 per payer policy verification dated [date].”

7. Modifier Usage for CPT 99070

CPT 99070 does not have a mandatory modifier, but several modifiers are applicable depending on the clinical and billing circumstances:

Modifier 52 – Reduced Services

Used when the full supply as originally ordered or intended was not provided due to clinical or insurance limitations. For example, if a physician planned to use a higher-volume wound irrigant but reduced the quantity based on insurance authorization, Modifier 52 accurately signals that the billed supply represents a reduced service from what was initially planned. This modifier protects against a denial for “inconsistency between charge and service” and ensures the reimbursement reflects the reduced provision of the material.

Modifier 76 – Repeat Procedure by the Same Physician

Applied when the same supply or material is provided more than once during the same date of service by the same provider — for example, repeated wound dressing changes throughout the same day that each require the same specialized material. Modifier 76 signals that this is not a duplicate billing error but a legitimate repeat provision of the supply. Without this modifier, a second same-day claim for 99070 will almost certainly be denied as a duplicate.

Modifier 77 – Repeat Procedure by Another Physician

Used when a second qualified provider — different from the original — provides the same supply or material to the same patient on the same date. This most commonly arises in group practices or shared on-call coverage scenarios. Modifier 77 distinguishes the second provider’s claim from a duplicate of the first.

Modifier 59 – Distinct Procedural Service

Used when the supply provided is clearly separate and distinct from the primary procedure being billed and might otherwise be bundled by claims editing software. For example, if a costly specialized dressing is applied at the conclusion of a procedure but represents a distinct, separately necessary supply event not included in the procedure’s standard bundled supply allowance, Modifier 59 can support the claim’s separation from the primary code. Use with caution — overuse of Modifier 59 is a known audit trigger.

Modifier 99 – Multiple Modifiers

If more than four modifiers are required, use 99 to signal that additional modifiers are present. This is rare for a supply-only code like 99070 but may arise in complex multi-supply billing scenarios.

8. Common Supply Categories & Their Correct Codes

The following table maps commonly encountered supply situations to their correct billing approach, including when 99070 may be appropriate versus when a specific HCPCS code is required:

9. Top Denial Reasons & How to Appeal

Denial Reason 1: “Service Bundled with Primary Procedure”

Why it happens: The supply you billed is considered a standard component of the primary CPT procedure code. The payer’s fee schedule already accounts for these supply costs in the PE-RVU of the primary code.

How to appeal: Provide documentation showing that the specific supply used exceeds the standard supply assumption built into the procedure code. Attach an invoice showing your acquisition cost relative to the procedure’s PE-RVU supply allowance. Note: For Medicare, this appeal will not succeed — the non-coverage rule is absolute.

Denial Reason 2: “More Specific Code Available”

Why it happens: A HCPCS Level II code exists for the supply you billed under 99070, and the payer requires the most specific code.

How to appeal: Recode the claim using the correct HCPCS Level II code and resubmit. This is a corrected claim, not an appeal. Verify your HCPCS codebook is current-year, as new supply codes are added quarterly by CMS.

Denial Reason 3: “Missing Itemization / Insufficient Documentation”

Why it happens: The claim or the medical record did not list the specific supplies, drugs, or materials as required by the code descriptor.

How to appeal: Submit a corrected claim with an attached itemized list of supplies and a copy of the relevant portion of the medical record. If the medical record itself lacks the itemization, an addendum may be added per your EHR’s compliant addendum policy, with a notation that it is an addendum (date/time/reason).

Denial Reason 4: “Non-Covered Service” (Medicare)

Why it happens: 99070 was billed on a Medicare claim. This will always be denied.

How to appeal: Do not appeal — recoding is the correct action. Use the appropriate HCPCS Level II code if one exists. If the item is truly not covered under Medicare’s fee schedule, issue an Advance Beneficiary Notice (ABN) to the patient before providing the supply, which allows you to bill the patient directly.

Denial Reason 5: “Drug Billed Without NDC Number”

Why it happens: A drug was billed under 99070 without the required National Drug Code (NDC) number in the designated claim field.

How to appeal: Resubmit with the NDC number in the correct claim field (Loop 2410 on the 837P electronic claim, or Box 24D with a separate NDC line on paper). Include the NDC qualifier, the 11-digit NDC number, the unit of measure qualifier, and the quantity.

10. Real-World Clinical Scenarios by Specialty

Scenario 1: Orthopedics – Specialized Waterproof Cast Material

Patient: 10-year-old with a distal radius fracture requiring a short arm cast. Parent requests a waterproof cast (Gore-Tex or waterproof fiberglass liner) so the child can continue swimming therapy.

Primary Code: 29125 (Application of short arm splint, static) or 29085 (Application of short arm cast).

Supply Issue: Standard fiberglass casting material costs are bundled. However, the specialty waterproof liner (e.g., AquaCast liner) represents a materially higher cost not accounted for in the procedure’s PE-RVU.

For Non-Medicare Payer: Bill 99070 with itemized documentation: “AquaCast waterproof cast liner, 3-inch width, 1 roll, used for waterproof short arm cast. Acquisition cost: $28.00. Billed: $40.00.” Attach invoice.

For Medicare: The additional cost cannot be separately billed. Consider whether ABN and patient self-pay is appropriate.

Coding: 29085 + 99070 (non-Medicare, with itemized documentation and invoice).

Scenario 2: Family Medicine – Injectable Drug Without a J-Code

Patient: Adult patient receiving a newly approved compounded injectable vitamin B-complex preparation in office for nutritional deficiency.

Primary Code: 96372 (Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular).

Supply Issue: The compounded B-complex formulation has no assigned HCPCS J-code. J3490 (Unclassified drugs) is an option, but the practice’s contracted payer explicitly requires 99070 for compounded medications with no J-code, per their provider policy manual.

Documentation: “Compounded B-complex injection (B1, B6, B12), 1 mL vial, NDC [XXXXXXXXX], administered IM left deltoid. No J-code exists for this compounded formulation. Billing 99070 per [Payer Name] policy.”

Coding: 96372 + 99070 with NDC on claim.

Note: Do NOT bill this to Medicare. For Medicare, use J3490 (unclassified drugs) instead of 99070.

Scenario 3: Wound Care Clinic – Advanced Biologic Dressing Without Current HCPCS Code

Patient: Diabetic patient with a chronic non-healing plantar foot ulcer. Provider applies a novel fish-skin-derived acellular fish skin graft (Omega3 Wound product) that was recently approved and does not yet have a permanent HCPCS Q-code assigned.

Primary Codes: 97602 (Wound(s), non-selective debridement) or 15271-series (skin substitute graft) depending on the specific product classification.

Supply Issue: Awaiting permanent HCPCS Q-code assignment; no current code adequately describes this specific product. Temporary C-code may exist in hospital outpatient; in office setting, no specific code may apply yet.

Documentation: Full product description, lot number, manufacturer invoice, product size (cm²), and clinical justification.

Coding: Primary procedure code + 99070 (only for commercial payer with verified policy allowing it; never Medicare). Check for Q-code updates quarterly — temporary codes for new skin substitutes are frequently added.

Key warning: As of 2026, CMS has been actively assigning permanent J-codes to many formerly temporary C-codes for skin substitutes. Always verify current HCPCS assignments before defaulting to 99070.

Scenario 4: Dermatology – Cyanoacrylate Wound Closure Agent

Patient: Adult with a 1.5 cm linear laceration on the forehead, closed with Dermabond (cyanoacrylate tissue adhesive) in the office.

Primary Code: 12011 (Simple repair of superficial wounds, face; 2.5 cm or less).

Supply Issue: Dermabond costs approximately $20–$30 per applicator. The repair code’s PE-RVU assumes standard suture material, not a specialty adhesive.

For Non-Medicare Payer: Bill 99070 with itemized note: “Dermabond 0.5 mL topical skin adhesive, 1 applicator. Standard suture repair substituted for cyanoacrylate per patient preference and wound geometry. Acquisition cost: $22.00. Billed: $35.00.” Attach invoice on first claim to this payer. Verify payer policy — some BCBS and Aetna plans have approved 99070 for Dermabond; others deny it as bundled.

Coding: 12011 + 99070 (selected commercial payers, with verification and documentation).

11. Compliance, Markup, and Fraud Risk

Markup Rules

There is no federally mandated maximum markup percentage for supplies billed under 99070 to commercial payers. Industry standards range from 10% to 100% above acquisition cost, but your payer contract may specify a reimbursement methodology (e.g., AWP, invoice plus a set percentage). Always review your contracts. For drugs, many payers reimburse at AWP (Average Wholesale Price) or ASP (Average Sales Price) + a set percentage, regardless of what you billed.

Fraud and Abuse Red Flags

The following practices may constitute fraudulent billing under 99070 and should be strictly avoided:

• Billing for supplies not actually used or provided. This is straightforward false claims fraud.
• Billing 99070 for supplies that are explicitly bundled (e.g., standard surgical tray components) when you know the payer considers them bundled.
• Systematic billing of 99070 to Medicare for supplies that the provider knows are not separately reimbursable. Even if claims are denied, a pattern of systematic non-compliant billing can trigger a False Claims Act inquiry.
• Inflating acquisition cost on invoices submitted to payers to justify higher reimbursement for 99070 claims.
• Unbundling: Separately billing for individual supply components of a procedure that are all included in the primary code’s PE-RVU in order to receive additional payment is considered improper unbundling.

OIG Work Plan Relevance

The HHS Office of Inspector General (OIG) has periodically reviewed billing patterns for miscellaneous supply codes. While 99070 is not always a standalone OIG target, it frequently appears in overpayment findings linked to claims where procedures were billed along with supply codes that payers considered bundled. Practices with high-volume 99070 utilization should periodically conduct internal audits to confirm that each claim is supported by itemized documentation and verified payer policy.

12. Related Codes: 99071 and 99072

Understanding when 99070’s sibling codes apply helps prevent misuse of 99070 for situations these codes were specifically created to address.

CPT 99071 – Educational Supplies

CPT 99071 covers educational supplies such as books, tapes, and pamphlets that a provider purchases and gives to the patient for their education, billed at the provider’s cost. The key distinction from 99070 is the nature of the item: 99071 covers educational materials meant for the patient to take home and use for learning, not clinical supplies used to deliver care. Like 99070, 99071 is generally not reimbursed by Medicare and requires payer verification before billing.

CPT 99072 – Public Health Emergency Supplies (Respiratory Disease)

Introduced in response to the COVID-19 pandemic, CPT 99072 reports additional supplies, materials, and clinical staff time over and above those usually included in an office visit or other non-facility service when performed during a Public Health Emergency involving a respiratory-transmitted infectious disease. This code covers costs such as N95 respirators, face shields, disposable gowns, additional disinfection materials, and the extra staff time needed for infection control protocols. When applicable, 99072 must always be used instead of 99070 — they are not interchangeable. Coverage of 99072 by commercial payers remains varied and has evolved as public health emergency declarations have been modified.