How to Submit a Corrected Claim on UB-04: Replacement, Void, and Resubmission Codes

Navigating the complexities of medical billing requires precision, especially when it comes to corrected claims. A single error can lead to denials, delayed payments, and increased administrative burden. Understanding when and how to use resubmission code 8 for replacement claims, or other codes for voids, is paramount for maintaining a healthy revenue cycle. This comprehensive guide, crafted by our team of seasoned RCM experts, will walk you through the intricate process of submitting corrected claims on the UB-04 form, ensuring compliance and maximizing your reimbursement.

Quick Reference Guide: UB-04 Corrected Claim Codes & Rules

Before diving into the granular details, here’s a quick reference table outlining the essential codes and rules you’ll encounter when submitting corrected claims on the UB-04. This table serves as your immediate go-to for understanding the core distinctions between replacement and voided claims.

Action Type	Bill Type (FL4)	Frequency Code (FL4)	Description	Key Considerations
Original Claim	XXX	1	First submission of a claim.	Establishes the initial record.
Replacement Claim	XXX	7	Used to correct a previously submitted claim.	Requires the original claim number (ICN/DCN) in FL64. Often associated with resubmission code 8 in electronic submissions.
Void/Cancel Claim	XXX	8	Used to completely cancel a previously submitted claim.	Requires the original claim number (ICN/DCN) in FL64. Effectively deletes the prior claim.
Adjustment Claim	XXX	5	Used for a late charge or adjustment to a previously paid claim.	Less common for full corrections; typically for minor financial adjustments.
Discharge/Status Change	XXX	2, 3, 4, 6	Used for interim claims or changes in patient status.	Specific to inpatient stays and billing cycles.

Detailed Breakdown: Understanding Corrected Claims on UB-04

Submitting a corrected claim isn’t just about changing a few fields; it’s about communicating effectively with the payer to rectify a previous submission. This section delves into the nuances of corrected claims, focusing on the UB-04 form and the critical role of frequency codes and resubmission code 8.

Bill Type (FL4) and Frequency Codes: The Foundation of Correction

The UB-04 form’s Field Locator 4 (FL4), known as the “Type of Bill” (TOB), is a crucial element that dictates the nature of your claim. It’s a three-digit code:

• Digit 1: Type of Facility (e.g., ‘1’ for Hospital, ‘2’ for Skilled Nursing Facility).
• Digit 2: Bill Classification (e.g., ‘3’ for Inpatient, ‘1’ for Outpatient).
• Digit 3: Frequency Code. This is where the magic happens for corrected claims.

Understanding Frequency Codes (The Third Digit of TOB)

The third digit of the TOB is often referred to as the “frequency code” or “occurrence code.” It tells the payer if this is an original claim, a replacement, a void, or an adjustment.

• Frequency Code 1 (Original Claim): This is for the very first submission of a claim for a specific service period.

Frequency Code 7 (Replacement Claim): This code signifies that you are submitting a replacement* for a previously submitted claim. When you use a bill type 137 (Hospital Outpatient, Replacement), for example, the ‘7’ indicates a replacement. This is the code you’ll use when you need to correct information on a claim that was already processed or is still pending. The electronic equivalent often involves resubmission code 8.
Frequency Code 8 (Void/Cancel Claim): This code indicates that you are voiding or canceling* a previously submitted claim entirely. If you need to completely undo a claim, perhaps because it was submitted for the wrong patient or service, you’d use a bill type 138 (Hospital Outpatient, Void). The electronic equivalent often involves resubmission code 7.

Resubmission Codes in Electronic Billing (837I/837P)

While the UB-04 form uses frequency codes in FL4, electronic claims (837I for institutional, 837P for professional) utilize specific “resubmission codes” in the Loop 2300, CLM-05-3 segment. This is where the primary target keyword, resubmission code 8, comes into play.

Resubmission Code 8 (Replacement Claim): This is the most common code used when submitting a corrected claim electronically. It corresponds directly to the UB-04’s frequency code ‘7’. When you use resubmission code 8, you are telling the payer, “Here is a corrected version of a claim you’ve already received. Please replace the old one with this new information.” It’s crucial to include the original claim number (ICN/DCN) in the appropriate field (Loop 2300, REFF8 segment for 837I, or Box 22 of the CMS-1500 for professional claims) so the payer can link the corrected claim to the original. Without the original claim number, the payer might treat it as a fresh claim, leading to a denial for duplicate services.

• Resubmission Code 7 (Void/Cancel Claim): This code is used electronically to void or cancel a previously submitted claim. It corresponds to the UB-04’s frequency code ‘8’. Similar to code 8, you must include the original claim number.
• Resubmission Code 6 (Corrected/Replacement of a Prior Claim): While less common than code 8 for general corrections, code 6 can also indicate a corrected claim. However, resubmission code 8 is generally preferred and more widely recognized for a full replacement. Always refer to specific payer guidelines for their preferred code.

What is the Difference Between Corrected and Fresh Claims?

This is a fundamental distinction that, if misunderstood, can lead to significant billing errors.

• Fresh Claim (Original Claim): This is the first time you are submitting a claim for a particular service or encounter. It uses frequency code ‘1’ on the UB-04 or no resubmission code (or a ‘1’ if explicitly required) on an electronic claim. A fresh claim assumes no prior submission exists for these services.

Corrected Claim (Replacement or Void): This is any claim submitted after* an original claim has already been sent.

• A replacement claim (frequency code ‘7’ or resubmission code 8) seeks to modify the original claim’s data. You are not starting over; you are updating.
• A void claim (frequency code ‘8’ or resubmission code 7) seeks to entirely nullify the original claim. You are erasing it from the payer’s system.

Submitting a corrected claim as a “fresh claim” will almost certainly result in a denial for duplicate services, as the payer will see two claims for the same dates of service and patient. This is why accurately identifying the need for a resubmission code 8 or 7 is critical.

Practical Tips for UB-04 Submission

Original Claim Number (ICN/DCN): For both replacement (frequency code 7, resubmission code 8) and void (frequency code 8, resubmission code 7) claims, you must* include the payer’s Internal Control Number (ICN) or Document Control Number (DCN) from the original claim in FL64 of the UB-04. This number is typically found on the Explanation of Benefits (EOB) or remittance advice. Without it, the payer cannot link your corrected claim to the original.

• “This is a charge corrected invoice, please review payer guidelines for appropriate next steps. [rule 1368736]”: This phrase, or similar, often appears in payer communications or internal billing systems. It’s a clear directive that a charge correction is needed, and it explicitly reminds you to consult the payer’s specific rules. Always heed this advice. Payer guidelines can vary significantly, even for standard practices like using resubmission code 8.
• Red UB-04 Form Not Lining Up: A common frustration in manual or hybrid billing environments. If your red UB04 form not lining up with your printer’s output, it’s often a calibration issue.
• Check Printer Settings: Ensure you’re printing at 100% scale, not “fit to page.”
• Printer Driver: Update your printer drivers.
• Software Alignment: Many billing software solutions have alignment tools. Utilize them.
• Test Prints: Always do test prints on plain paper before using expensive red forms.
• What type of bill will be submitted for UB 04 for corrected claim? As discussed, for a corrected claim, you will submit a UB-04 with the appropriate three-digit Bill Type in FL4. The first two digits will reflect the facility and bill classification (e.g., ’13’ for Hospital Outpatient), and the third digit will be the frequency code ‘7’ for a replacement or ‘8’ for a void. So, for a replacement hospital outpatient claim, it would be bill type 137.

Real-World Billing Scenarios & Patient Status Changes

Understanding the theory is one thing; applying it in real-world scenarios is another. Here are detailed examples illustrating when to use resubmission code 8 (or frequency code 7) versus resubmission code 7 (or frequency code 8), and how patient status changes impact your billing.

Scenario 1: Incorrect Diagnosis Code (Replacement Claim)

• Initial Submission: An original UB-04 claim (Bill Type 131) was submitted for an outpatient visit with diagnosis code R10.9 (Unspecified abdominal pain).
• Discovery: After review, the physician’s documentation clearly supports a more specific diagnosis of K80.20 (Calculus of gallbladder without cholecystitis, without obstruction).
• Action: You need to correct the diagnosis code. This is a modification to an existing claim, not a complete cancellation.
• How to Submit:
• Submit a new UB-04 form.
• In FL4, change the Bill Type to 137 (Hospital Outpatient, Replacement).
• In FL64, enter the ICN/DCN from the original claim’s EOB.
• Update FL67 (Diagnosis Codes) with K80.20.
• Electronically, this would involve using resubmission code 8 in the 837I transaction, along with the original claim number.
• Outcome: The payer will process the new claim, replacing the old one, and re-adjudicate based on the corrected diagnosis.

Scenario 2: Duplicate Claim Submission (Void and Resubmit)

• Initial Submission: Due to a system glitch, the same outpatient claim (Bill Type 131) for a patient was submitted twice on the same day.
• Discovery: The payer denies the second claim as a duplicate (e.g., CARC CO-18).
• Action: You need to void one of the duplicate claims to prevent further confusion and potential overpayment if both were processed.
• How to Submit:

Submit a new UB-04 form for the duplicate* claim you wish to void.

• In FL4, change the Bill Type to 138 (Hospital Outpatient, Void).

In FL64, enter the ICN/DCN of the specific duplicate claim* you are voiding.

• Electronically, this would involve using resubmission code 7 in the 837I transaction, along with the original claim number of the claim being voided.

Outcome: The payer will cancel the specified duplicate claim. You might then need to ensure the correct* original claim is still active and processed appropriately.

Scenario 3: Incorrect Patient Demographics (Replacement)

• Initial Submission: An inpatient claim (Bill Type 111) was submitted with an incorrect patient date of birth.
• Discovery: The patient calls to update their information, and the error is found.
• Action: Correct the patient’s date of birth.
• How to Submit:
• Submit a new UB-04 form.
• In FL4, change the Bill Type to 117 (Hospital Inpatient, Replacement).
• In FL64, enter the ICN/DCN from the original claim.
• Update FL6 (Patient DOB) with the correct information.
• Electronically, use resubmission code 8 in the 837I, with the original claim number.
• Outcome: The payer will update the patient’s demographic information on file for that claim and re-adjudicate if necessary.

Scenario 4: Patient Status Changes (Interim and Final Claims)

Patient status changes are common in inpatient settings and require specific frequency codes, often leading to a series of claims rather than a single corrected one.

• Interim Claims (Frequency Codes 2, 3, 4): For long inpatient stays, facilities may submit interim claims to receive partial payments.
• Frequency Code 2: First Interim Claim
• Frequency Code 3: Second Interim Claim
• Frequency Code 4: Third Interim Claim, etc.
• Discharge/Final Claim (Frequency Code 1): Once the patient is discharged, a final claim is submitted using frequency code ‘1’ (or ‘6’ for a discharge not covered by an interim claim). This final claim consolidates all charges for the entire stay.

Correction to an Interim Claim: If an interim claim needs correction, you would submit a replacement claim using frequency code ‘7’ for that specific interim period, referencing its ICN/DCN. However, often it’s more efficient to ensure the final* claim is accurate, as it supersedes interim claims for final adjudication.

• Correction to a Final Claim: If the final claim needs correction, you would use frequency code ‘7’ (e.g., bill type 117 for a hospital inpatient replacement) and resubmission code 8 electronically, referencing the final claim’s ICN/DCN.

Common Denial Codes & Step-by-Step Appeal Instructions

Even with meticulous billing practices, denials are an inevitable part of the revenue cycle. Understanding common denial codes and having a structured appeal process is crucial. Many denials stem from incorrect initial submissions that require a corrected claim using resubmission code 8 or 7.

Common Denial Codes Related to Corrected Claims

• CO-16 (Claim/service lacks information or has submission/billing error(s)): This is a broad denial, often indicating missing or incorrect data. It frequently necessitates a replacement claim using resubmission code 8.
• CO-18 (Duplicate claim/service): As seen in Scenario 2, this means the payer believes they’ve already received and processed this claim. You’ll likely need to void one of the claims using resubmission code 7.
• CO-29 (The time limit for filing has expired): If your original claim was denied for timely filing, you cannot simply resubmit a corrected claim. You would need to appeal the timely filing denial itself, often with documentation proving timely submission or a valid reason for delay.
• M86 (Missing/incomplete/invalid patient identifier): This indicates an issue with the patient’s ID, name, or date of birth. A replacement claim with corrected demographics (using resubmission code 8) would be required.
• N290 (Missing/incomplete/invalid original claim number): This is a critical denial when submitting a corrected claim. It means you failed to provide the ICN/DCN of the original claim, causing the payer to treat your corrected claim as a new, duplicate submission. You must resubmit with the correct ICN/DCN and resubmission code 8.

Step-by-Step Appeal Process for Denied Corrected Claims

When a corrected claim, even one submitted with resubmission code 8, gets denied, follow these steps:

1. Analyze the EOB/Remittance Advice: Carefully review the Explanation of Benefits (EOB) or Electronic Remittance Advice (ERA). Identify the CARC (Claim Adjustment Reason Code) and RARC (Remittance Advice Remark Code) to understand the exact reason for the denial.
2. Identify the Root Cause:

• Was the original claim number (ICN/DCN) included and correct?
• Was the correct frequency code (7 or 8) or resubmission code 8 or 7 used?
• Was the specific error (e.g., diagnosis, CPT, patient demographics) truly corrected?
• Did you miss a payer-specific guideline (e.g., “please review payer guidelines for appropriate next steps. [rule 1368736]”)?

3. Gather Supporting Documentation: Collect all relevant documents: the original claim, the EOB for the original claim, the corrected claim, the EOB for the denied corrected claim, and any clinical documentation supporting the correction.
4. Draft an Appeal Letter:

• Clearly state the patient’s name, account number, date of service, and original claim number.
• Reference the denied corrected claim and its denial reason.

Explain why* the denial is incorrect, referencing the specific correction made (e.g., “The original claim was denied for incorrect diagnosis code R10.9. We submitted a corrected claim with resubmission code 8 and the accurate diagnosis K80.20, which is supported by the attached medical records.”).

• Request reconsideration and payment.

5. Submit the Appeal: Follow the payer’s specific appeal instructions, including deadlines and submission methods (e.g., online portal, mail, fax). Always keep a copy of your appeal letter and proof of submission.
6. Track and Follow Up: Document the appeal submission date and follow up with the payer within their stated timeframe for appeal resolution.

Frequently Asked Questions (FAQ)

Q1: When should I use resubmission code 8 vs. resubmission code 7?

Resubmission code 8 (or UB-04 frequency code ‘7’) is used to submit a replacement claim, meaning you are correcting specific information on a previously submitted claim. You want the payer to process the new claim in place of the old one. Resubmission code 7 (or UB-04 frequency code ‘8’) is used to void or cancel a previously submitted claim entirely, effectively removing it from the payer’s system. Choose code 8 for corrections, and code 7 for complete cancellations.

Q2: What is bill type 137?

Bill type 137 is a UB-04 code that signifies a “Hospital Outpatient Replacement Claim.” The ‘1’ indicates a hospital, the ‘3’ indicates outpatient services, and the ‘7’ is the frequency code for a replacement claim. This is the bill type you would use on a UB-04 form when submitting a corrected claim for outpatient hospital services.

Q3: Do CMS 1500 forms use resubmission codes like UB-04?

Yes, while this guide focuses on the UB-04, the concept of resubmission codes applies to professional claims submitted on the CMS-1500 form as well. For electronic CMS-1500 claims (837P), you would use the same resubmission code 8 for replacements and code 7 for voids in the Loop 2300, CLM-05-3 segment. For paper CMS-1500, you would typically indicate a corrected claim by checking the “Resubmission” box in Box 22 and entering the original reference number.

Q4: What if my red UB04 form not lining up when I print?

If your red UB04 form not lining up when printing, first check your printer settings to ensure you are printing at 100% scale (not “fit to page”). Update your printer drivers, and if using billing software, utilize any built-in alignment tools. Always perform test prints on plain paper before using the actual red forms to save time and resources. This is a common issue that often requires minor adjustments to printer or software settings.

Q5: How important is the original claim number (ICN/DCN) for corrected claims?

The original claim number (ICN/DCN) is absolutely critical. When submitting a replacement claim with resubmission code 8 or a void with code 7, you must include the ICN/DCN from the payer’s original processing of the claim. This number allows the payer to correctly identify and link your corrected claim to the original. Without it, your corrected claim will likely be processed as a new, duplicate claim and subsequently denied, leading to further delays and rework.

Q6: What does “this is a charge corrected invoice, please review payer guidelines for appropriate next steps. [rule 1368736]” mean?

This message is a clear directive from a payer or billing system indicating that a charge correction is needed and that you should consult their specific guidelines for how to proceed. It’s a reminder that while general rules for resubmission code 8 and UB-04 corrections exist, individual payers may have unique requirements or preferred methods. Always refer to the payer’s provider manual or contact their provider relations department when you encounter such a message to ensure compliance and avoid further denials.

Mastering the art of corrected claims on the UB-04, particularly the nuanced application of resubmission code 8 and other frequency codes, is a cornerstone of effective revenue cycle management. By adhering to these guidelines and understanding payer-specific requirements, your organization can significantly reduce denials, accelerate payments, and maintain a robust financial standing. For further assistance or to optimize your billing processes, explore our comprehensive resources on payer contract negotiation and denial management strategies.

FAQ: Common Questions Answered

What is the difference between resubmission code 7 and 8 on UB-04?

On the UB-04 form itself, these codes refer to the Frequency Code found in Field Locator 4 (FL4), the third digit of the Bill Type. Frequency Code ‘7’ designates a Replacement Claim, meaning you are submitting a corrected version of a previously filed claim. You’re essentially telling the payer, “Ignore the last one, here’s the right one.” Frequency Code ‘8’ designates a Void/Cancel Claim, which is used to completely nullify a previously submitted claim, effectively deleting it from the payer’s records as if it never existed. It’s crucial to note a common point of confusion: in electronic submissions (like the 837I transaction), “resubmission code 8” is often used in the claim loop to indicate a replacement claim, which corresponds to a UB-04 with Frequency Code ‘7’. Always clarify the context – whether you’re referring to the UB-04’s FL4 or an electronic transaction code.

Where do I enter resubmission codes on the UB-04 form?

On the UB-04 form, the “resubmission codes” are actually referred to as Frequency Codes and are entered in Field Locator 4 (FL4). This is the third digit of the three-digit Bill Type code. For example, if your original Bill Type was ‘011X’ (where X is the type of facility), a replacement claim would use ‘017X’ and a voided claim would use ‘018X’. This specific field tells the payer the intent behind your submission – whether it’s an original, a correction, or a cancellation.

When should I use resubmission code 8 for a UB-04 claim?

The usage of “resubmission code 8” depends on whether you’re referring to the UB-04’s Field Locator 4 (FL4) or an electronic submission code. If you’re using Frequency Code ‘8’ in FL4 on the UB-04 form, you should use it when you need to completely void or cancel a previously submitted claim. This action effectively removes the claim from the payer’s system. However, if you’re referring to the electronic resubmission code ‘8’ (often used in the 837I transaction), you would use it when submitting a replacement claim electronically. This electronic code signals to the payer that the current submission is intended to supersede a prior claim, which would correspond to a UB-04 with Frequency Code ‘7’. Understanding this distinction is vital to ensure your corrected claims are processed correctly and to avoid unnecessary denials.

Are resubmission codes on CMS-1500 different from UB-04?

Yes, the approach to corrected claims differs between the UB-04 and the CMS-1500 forms. This article specifically details the process for the UB-04, which is used for institutional claims (e.g., hospitals, skilled nursing facilities). For the CMS-1500 form, used for professional claims (e.g., physician services), you typically indicate a corrected claim by using specific codes in Box 22 (Resubmission Code) and providing the original claim number in Box 22 (Original Ref. No.). While the conceptual intent (replacement, void) is similar, the specific fields and sometimes the codes themselves are tailored to the respective forms and their unique billing requirements.

External Resources & Authority Links

• For more detailed insights, refer to the CMS guidelines.
• For more detailed insights, refer to the AMA CPT coding resources.