Top 96374 Coding Mistakes in IV Push Billing and Practical Fixes

IV (intravenous) push of a therapeutic, prophylactic or diagnostic drug is billed using CPT code 96374. It discusses administration of one or first substance directly into the vein. Infusion billing code is among the most popular and frequently denied codes.

Denials for 96374 do not always occur due to the lack of service. Most of the time they occur as a result of documentation issues, coding problems, or policy differences with the payer. These errors are estimated to cost infusion practices thousands of dollars each month in lost/rejected reimbursements. This blog lists the top coding errors that cause 96374 denials and provides easy-to-follow solutions for your billing staff.

What is CPT Code 96374?

Code 96374 is for the procedure of the administration of a drug or substance administered as an intravenous push. The term “intravenous push” refers to administering a medication by injection straight into the vein in a period not exceeding 15 minutes.

The use of CPT code is applicable for the first or sole injection of the IV push. The procedure is performed in office settings, outpatient clinics, hospital outpatient departments, and infusion centers. The application of CPT code 96374 should be done according to physician orders, documentation, and diagnosis. Failure to meet these requirements will lead to denial of claims.

Mistake 1: Missing Documentation of Medical Necessity

Medical necessity is the foundation of every successful claim. When a payer receives a claim for 96374, the first thing they check is whether the documentation proves the patient needed that IV push. If the clinical notes are vague, incomplete, or missing entirely, the claim is denied before it is even reviewed for coding accuracy.

This is one of the leading causes of 96374 denials across all payer types including Medicare, Medicaid, and commercial insurers.

Why It Causes Denial:

• No physician order attached to the claim
• Diagnosis does not support the IV push given
• Clinical notes missing drug name or dosage
• No documented reason for IV route over oral route
• Vague language like “patient needs medication”
• ICD-10 code does not match administered drug

Practical Fix:

• Attach a signed physician order to every claim
• Document drug name, dose, and route clearly
• Use specific ICD-10 codes, not general ones
• Note why IV route was chosen over oral route
• Ensure nurse notes match physician orders
• Review notes before claim submission always

Mistake 2: Confusing 96374 with Infusion Code 96365

This is a very common infusion coding error. IV push is a drug administered within 15 minutes and is the CPT code for that. CPT code 96365 is for an IV infusion (more than 15 minutes). If billers enter 96374 for a service that was truly longer than the actual amount, the discrepancy will be noticed by the payers when the claim is reviewed and rejected.

This becomes problematic if the clinical staff do not record the times of occurrence. If there is no time documentation, there will no longer be any way for the coder to assign the correct code.

Why It Causes Denial:

• Drug given over 16 or more minutes billed as push
• No start and stop times in clinical notes
• Coder assumed push without checking the chart
• Time documentation missing from nursing notes
• Wrong code submitted without time verification
• Payer audits flag time and code mismatch

Practical Fix:

• Train nurses to document start and stop times
• Review infusion time before selecting the code
• Use 96365 when administration exceeds 15 minutes
• Build a time-based coding reference sheet
• Audit claims monthly for push versus infusion errors
• Add time verification to the pre-billing checklist

Mistake 3: Billing 96374 as a Standalone When It Should Be Add-On

Many billers are not aware that 96374 will change depending on whether any other services were rendered at the same encounter. If an infusion is administered and an IV push is administered the same day, then the infusion code is the primary service and 96374 is an add-on. If you say that it is the main code in this situation, you’ll get some denials bundled. This system error is something that payer systems can detect automatically. The claim is then disallowed or is paid at a lower rate.

Why It Causes Denial:

• 96374 billed as primary when infusion was given first.
• Hierarchy rules ignored during claim preparation.
• Coder unaware of primary versus add-on structure.
• Bundling edits applied by the payer system automatically.
• No review of full encounter before code selection.
• Same-day services not cross-checked before billing.

Practical Fix:

• Learn the infusion coding hierarchy rules well.
• Always identify the primary service of the encounter.
• Use 96374 as add-on when infusion is billed primarily.
• Review all same-day services before submitting claims.
• Use a coding hierarchy reference chart daily.
• Run claims through a scrubber before submission.

Mistake 4: Billing Multiple Units of 96374 for the Same Drug

CPT code 96374 is a per drug, per encounter code. The nurse’s number of attempts to push the same medication isn’t important during that visit. Multiple billing of the same drug for the same unit is a billing compliance violation and is referred to as unbundling. In repeated instances, payers will contest these allegations and could mark the provider for audit. This error frequently occurs as a result of unit billing rules for IV push codes being unknown to billing staff or the lack of correct charge capture system setups.

Why It Causes Denial:

• Same drug billed twice under 96374 in one visit.
• The charge capture system duplicates units automatically.
• Biller unaware of the one-unit-per-drug rule.
• Second push of same drug coded as new service.
• Unbundling flag triggered by payer edit system.
• Claim denied and sometimes sent for audit review.

Practical Fix:

• Bill 96374 only once per unique drug per encounter.
• Use 96376 for re-push of the same drug in the facility setting.
• Audit charge capture settings for duplicate entries.
• Train billing staff on IV push unit billing rules.
• Review claims for duplicate units before submission.
• Document each drug separately in the nursing notes.

Mistake 5: Missing or Wrong Modifier with E/M on Same Day

Both an E/M visit and IV push can be billed when the patient receives both services on the same day. But the claim needs to contain the right modifier to indicate a separate and significant E/M service. If not for this modifier, the E/M is included in the IV push and the reimbursement for the E/M is denied or reduced. It’s a missed revenue problem which a lot of infusion practices endure on a normal basis but without realizing the cause.

Why It Causes Denial:

• Modifier 25 missing from the E/M code.
• E/M and 96374 submitted without distinction.
• Payer bundles both services into one payment.
• No documentation showing E/M was a separate service.
• Clinical notes do not support a distinct E/M visit.
• Claim denied or downcoded without modifier 25.

Practical Fix:

• Always append modifier 25 to the E/M code.
• Document E/M as separate from the IV push service.
• Ensure physician notes support a distinct E/M visit.
• Train providers on same-day billing documentation.
• Include modifier 25 in the pre-billing audit checklist.
• Review payer-specific modifier 25 guidelines regularly.

Mistake 6: Ignoring Payer-Specific Policies for 96374

96374 is not covered by all payers. Medicare has its very own LCD guidelines. The rules of Medicaid differ from state to state. Every commercial payer has its own coverage policies, prior authorizations and bundling edits. Billers who apply one universal rule to all payers consistently run into denials that could have been prevented with a simple policy check. This error can be particularly expensive for high volume infusion practices that are billing to multiple payers simultaneously.

Why It Causes Denial:

• Payer-specific prior auth requirement missed.
• Wrong place of service code for that payer.
• Payer does not cover 96374 for that diagnosis.
• Commercial payers have different bundling rules.
• State Medicaid policy not reviewed before billing.
• LCD guidelines not checked for Medicare claims.

Practical Fix:

• Build a payer policy reference sheet for 96374.
• Check prior auth requirements before each claim.
• Review LCD guidelines for every Medicare claim.
• Confirm covered diagnoses per payer before billing.
• Update payer reference sheet every quarter.
• Assign a staff member to track payer policy changes.

How Infusion Billing Services Protects Your Revenue

Handling 96374 denials by yourself is costly, time consuming and requires a high level of coding expertise that not all infusion practices possess in-house. Infusion Billing Services is a specialized billing billing company that works exclusively with infusion and injection providers. Our team is familiar with the exact documentation requirements, payer rules and coding hierarchies that impact 96374 claims on a daily basis.

We examine claims prior to them being submitted to identify errors and inconsistencies early in the process, ensure that claims are submitted to the correct payers for Medicare, Medicaid, and commercial plans, and ensure claims are denied and processed with targeted appeals. Their coders keep up-to-date on LCD updates and CPT guideline changes, so your team doesn’t.

Infusion Billing Services’ 96374 billing ensures that practices experience fewer denials, quicker payments, and enhanced overall revenue cycle management. Processes don’t simply take care of problems. It helps to prevent them from occurring.

Conclusion

CPT code 96374 is a straightforward code with a complicated billing environment. The errors featured in this blog are not uncommon. They occur daily in all types and sizes of infusion practices. Fortunately, all of these mistakes can be avoided with proper training, documentation practices and payer understanding.

You should review your existing 96374 claims first. Check if there are patterns in your denials. Find out where you’re losing the most money and implement the fixes mentioned above. If the process sounds like too much work, then it can be helped by having someone else help with the billing, such as a billing service like Infusion Billing Services.