Modifier 25: Significant, Separately Identifiable Evaluation and Management Service by the Same Physician on the Same Day of the Procedure or Other Service

Modifier 25 indicates that on the day a minor procedure was performed, the patient condition required a significant, separately identifiable E/M service above and beyond the usual pre-procedure and post-procedure care.

NCCI Policy: Bypasses NCCI PTP edits with modifier indicator 1.

Clinical Field: Evaluation and Management (E/M)

Standard: AMA CPT & CMS HCPCS

✔

Quick Modifier 25 Summary

What is Modifier 25? Modifier 25 is a medical billing modifier appended to CPT or HCPCS codes to indicate Significant, Separately Identifiable Evaluation and Management Service by the Same Physician on the Same Day of the Procedure or Other Service. Under official CMS and AMA coding rules, it is applied when modifier 25 indicates that on the day a minor procedure was performed, the patient condition required a significant, separately identifiable E/M service above and beyond the usual pre-procedure and post-procedure care.

Official guideline source: CMS Medicare Claims Processing Manual & AMA CPT Guidelines.

✔

When to Use Modifier 25

Use when an established patient presents for scheduled knee injection but also receives independent clinical evaluation and prescription adjustment for uncontrolled hypertension.

Clinical Example: Office visit 99214-25 reported on same date as arthrocentesis joint injection 20610.

✖

When NOT to Use (Audit Pitfalls)

Do not use when E/M work consists solely of confirming the indication for the procedure, obtaining surgical consent, or routine post-procedure checks.

Denial Risk: Appending Modifier 25 without meeting these criteria triggers post-payment claims recoupment under payer audits.

Official Coding Guidelines & NCCI PTP Unbundling

The E/M service must be prompted by the symptom or condition for which the patient provided history, or an independent clinical evaluation during a scheduled procedure encounter.

National Correct Coding Initiative (NCCI) Policy: Bypasses NCCI PTP edits with modifier indicator 1. When two procedure codes form a Column 1/Column 2 edit pair with modifier indicator 1, appending Modifier 25 signals that the criteria for distinct, separate, or unbundled service delivery have been fully met.

Check Code Pairs for Modifier 25 Eligibility

Verify whether your specific CPT code pair allows Modifier 25 override under Q4 2026 CMS files.

Launch NCCI Edit Checker →

Medical Record Documentation Checklist

To defend against Medicare CERT and commercial payer audits, ensure the patient medical record contains:

Core Documentation Directive: Maintain two distinct clinical note sections: one detailing the independent E/M assessment and medical decision making, and one describing the procedure.

Independent clinical justification documented contemporaneously with the encounter.
Clearly designated procedure timestamps, anatomical laterality (left, right, bilateral), or separate anatomical locations.
Physician electronic signature authenticated and dated in the electronic health record (EHR).

Frequently Asked Questions: Modifier 25

Does Modifier 25 affect reimbursement payments?

Depending on the code and payer contract, Modifier 25 either adjusts the payment percentage or enables secondary codes to be reimbursed without being bundled into the primary procedure.

Can Modifier 25 be billed with telehealth services?

Yes, if the clinical encounter satisfies telehealth criteria and the specific conditions for Modifier 25 are documented in the virtual medical record.