Modifier 25 Denials: How to Document Same-Day E/M and Procedure Claims So They Get Paid

Modifier 25 is one of the most frequently used and most heavily scrutinized modifiers in outpatient medical billing. While it allows providers to report a significant, separately identifiable Evaluation and Management (E/M) service performed on the same day as a procedure, it is also a leading cause of claim denials, post-payment audits, and Medicare repayment requests. 

In most cases, the issue isn’t incorrect coding; it’s documentation that fails to demonstrate medical necessity, independent medical decision-making (MDM), and a distinct E/M service. Strengthening documentation is also a key strategy in effective OBGYN Claim Denial Management, where same-day procedures are routinely performed.

This guide explains the Modifier 25 documentation requirements, common payer edit triggers, and the evidence auditors expect to see before approving reimbursement.

What Is Modifier 25?

Modifier 25 is a CPT Evaluation and Management (E/M) modifier used to indicate that a physician or other qualified healthcare professional provided a significant, separately identifiable E/M service on the same day as another procedure or service. 

It allows providers to receive reimbursement for both services when the documentation clearly demonstrates that the E/M visit went beyond the routine work normally included in the procedure. Because Modifier 25 directly affects reimbursement and is frequently misused, it remains one of the most closely monitored modifiers by Medicare and commercial payers.

Definition of Modifier 25

According to the American Medical Association (AMA) CPT® Manual, Modifier 25 is defined as:

“Significant, separately identifiable evaluation and management service by the same physician or other qualified health care professional on the same day of the procedure or other service.”

The key phrase is “significant, separately identifiable.” The E/M service must represent medically necessary work that is above and beyond the routine preoperative and postoperative care included in the procedure. In other words, the provider must perform and document a distinct evaluation that supports reporting an E/M code in addition to the procedure.

The 2026 CMS National Correct Coding Initiative (NCCI) Policy Manual further clarifies that a separately identifiable E/M service must be fully supported by documentation meeting all applicable E/M coding requirements. 

CMS also states that the E/M service may be reported with the same diagnosis as the procedure when clinically appropriate. However, documentation cannot include work that is already considered part of the procedure’s global package, such as routine pre-procedure evaluation, obtaining informed consent, intraoperative services, or standard post-procedure care.

Purpose of Modifier 25

The primary purpose of Modifier 25 is to distinguish a medically necessary evaluation from the procedure itself. It prevents legitimate E/M services from being bundled into the procedural payment while ensuring providers are reimbursed for the additional cognitive work involved in assessing the patient’s condition, establishing medical necessity, and making independent clinical decisions. Without Modifier 25, many payers automatically assume that all evaluations performed on the same day is included in the procedure reimbursement.

When Should Modifier 25 Be Appended?

Modifier 25 should be appended to the E/M code, not the procedure code, when all of the following conditions are met:

• A significant and separately identifiable E/M service is provided on the same day as a minor procedure or other service.
• The E/M service includes its own medically necessary history, examination, and medical decision-making (MDM) or meets the applicable time-based E/M requirements.
• Documentation clearly demonstrates work that exceeds the routine evaluation already included in the procedure.
• The medical record supports billing both services independently, even if they are related to the same diagnosis.

When Modifier 25 Is Appropriate – The Three Valid Scenarios

Understanding the correct clinical scenarios prevents both under-billing (missing legitimate revenue) and over-billing (applying the modifier when documentation does not support it).

Scenario 1: A Separate Clinical Problem Is Evaluated on the Same Day as a Minor Procedure

A patient comes into your clinic to have a sebaceous cyst removed (CPT 10080). The provider also reviews and documents a separate complaint of persistent headaches that started 3 weeks ago and checks the medication list, evaluates neurological risk factors and orders imaging during the visit. The assessment of the headache is not related to the removal of the cysts. It was a requirement that it be clinically thought out and documented separately. 

Correct:  99213-25 (or appropriate level E/M) billed alongside 10080. The E/M addresses the headache. The procedure addresses the cyst. Both are documented as distinct clinical activities.

Scenario 2: The Same Condition Prompts Both the E/M and the Procedure, but the Evaluation Exceeds What Is Bundled Into the Procedure

A patient presents with a suspicious skin lesion. The provider performs a detailed evaluation of the lesion, reviews the patient’s history for melanoma risk factors, assesses lymph node involvement, and documents a risk-stratified clinical plan before deciding to biopsy. The decision to biopsy and the pre-procedure check are bundled into the biopsy global payment. But the expanded evaluation of melanoma risk factors, lymphadenopathy assessment, and treatment planning documentation go beyond the bundled pre-procedure work.

Correct:  Modifier 25 is appropriate when the note clearly reflects clinical work beyond the routine pre-biopsy examination. The documentation must specifically capture the expanded evaluation components that exceed the bundled pre-procedure work.

Clarification:  Different ICD-10 codes are not required for the E/M and procedure to be separately billed. The same diagnosis can support both. What must be different is the clinical work documented; the E/M must reflect work that is not inherent in the procedure.

Scenario 3: A Preventive Visit Plus a Problem-Oriented E/M

A patient presents for an annual wellness visit. During the visit, the provider identifies and separately evaluates a new complaint, for example, newly elevated blood pressure readings the patient reports at home, with a family history discussion, a review of sodium intake, and a plan to initiate lifestyle modification or medication. The annual wellness visit code covers preventive screening. The blood pressure evaluation is a separately identifiable problem-oriented E/M.

Correct:  The preventive medicine code (e.g., 99395) plus a problem-oriented E/M code (e.g., 99213-25). As of January 1, 2025, confirmed active in 2026, CMS allows G2211 to be billed with an E/M code that carries Modifier 25 when the E/M is performed on the same day as a preventive service. Verify payer-specific G2211 policies, as commercial payer adoption varies.

When Modifier 25 Should Not Be Used?

Modifier 25 should only be reported when the medical record supports a significant, separately identifiable E/M service. Using it in situations where the evaluation is already included in the procedure can lead to claim denials, payment recoupments, or payer audits. Below are four common scenarios where Modifier 25 is generally not appropriate.

The E/M Service Is Limited to Routine Pre-Procedure Work

Every procedure performed within a global surgical package includes routine pre-procedure, intraoperative, and post-procedure services. If the office visit consists only of evaluating the patient for the planned procedure, confirming the indication, examining the treatment site, and obtaining informed consent, these activities are already included in the procedural payment. Reporting a separate E/M service with Modifier 25 in this situation is not supported.

Example:

All surgical procedures conducted under a surgical package involve regular pre-procedure, intra-procedure and post-procedure services. The procedural payment covers these activities if the office visit includes only the evaluation of the patient for the planned procedure, confirmation of the procedure indication, examination of the treatment site, and informed consent. In this case, reporting an E/M service with Modifier 25 is not supported. 

The Visit Results in a Decision for Major Surgery

Modifier 25 is intended for significant E/M services performed on the same day as minor procedures with a 0-day or 10-day global period. If the E/M visit leads to the decision to perform a major surgery with a 90-day global period, the correct modifier is Modifier 57, not Modifier 25.

Modifier 25 is not equivalent to Modifier 57, and may cause claim denials and compliance issues. Always check the global period of the procedure first, before choosing the correct modifier. 

Different Diagnosis Codes Do Not Automatically Support Modifier 25

Many providers are assuming that it’s sufficient to have ICD-10 codes for the procedure and the E/M service to warrant Modifier 25. But this is not the case with coding guidelines. Various diagnoses could reinforce the argument but do not negate the requirement to provide documentation of a clear demonstration of evaluation. 

The primary focus of auditors is on clinical documentation not diagnosis codes. In the event that the medical necessity of the E/M and the procedure are not associated with different ICD-10 codes, the claim could be denied if the record does not contain an independent history, examination, and medical decision-making. 

Modifier 25 Is Applied as a Routine Billing Habit

It is a frequent billing error and a major audit risk to bill all same day procedures with Modifier 25. Medicare contractors and commercial payers rely on data analytics to determine if providers’ Modifier 25 use is significantly greater than specialty use. Multiple and unhelpful reports of the modifier without proper documentation could lead to targeted medical reviews. 

Modifier 25 vs. Related Modifiers

Modifier 25 is often misused for four other modifiers which deal with similar, but different, billing situations. The wrong modifier is a coding error that will be denied and will be counted as not a correct coding error. 

Modifier	Name	When It Applies	Global Period	Goes On
-25	Significant, Separately Identifiable E/M	E/M performed same day as a minor procedure; E/M goes beyond the bundled pre-procedure work	0-day or 10-day global procedures	E/M code
-57	Decision for Surgery	E/M led to the decision to perform a major surgical procedure on the same day or the day before	90-day (major surgery) global procedures	E/M code
-24	Unrelated E/M During Post-Op Period	E/M performed during the post-operative global period of a prior surgery; E/M is unrelated to the surgery	During 10-day or 90-day post-operative period	E/M code
-27	Multiple Outpatient Hospital E/M Services Same Day	Different physicians of same group provide E/M services to the same patient in same facility on same day	Hospital outpatient setting	E/M code
-59	Distinct Procedural Service	Two procedures that would normally be bundled under NCCI edits were actually separate and distinct	Not related to global periods	Procedure code (NOT E/M)

Reduce Claim Denials and Strengthen Revenue Cycle Performance with CureCloudMD

Modifier 25 denials often occur when documentation does not clearly support a significant, separately identifiable E/M service. Through specialized OBGYN Claim Denial Management, CureCloudMD helps healthcare practices strengthen documentation, optimize coding accuracy, manage appeals, and reduce revenue loss caused by preventable denials. Our experienced billing and coding professionals work closely with providers to identify payer-specific requirements, resolve claim issues quickly, and maintain compliance with current billing guidelines.

Key Performance of CureCloudMD Highlights

• 98% Clean Claim Rate through proactive claim scrubbing and coding validation
• 95%+ First-Pass Claim Acceptance Rate to reduce rework and accelerate reimbursements
• 30% Reduction in Preventable Claim Denials through documentation and coding audits
• Faster Appeals Processing for denied Modifier 25 and bundling claims
• Improved Revenue Recovery with timely denial follow-up and payer communication
• Continuous Compliance Monitoring to reduce audit risks and coding vulnerabilities
• Specialized Expertise in Modifier 25 Documentation and Appeals across multiple specialties

Whether your practice is struggling with Modifier 25 denials, payer audits, or reimbursement delays, CureCloudMD provides the expertise, technology, and revenue cycle support needed to maximize collections and improve financial performance.