Modifier 25
A CPT modifier appended to an evaluation and management (E&M) service code to indicate that the E&M service was significant, separately identifiable, and above and beyond the pre-service evaluation normally included in a procedure on the same day of service. Modifier 25 allows a clinic to bill both the E&M visit and the procedure performed during the same patient encounter and receive separate payment for each.
Why this matters for your clinic
Without modifier 25, payers will bundle the E&M service into the procedure and pay only the procedure. The E&M is considered included in the pre-procedure evaluation. If the E&M was a distinct service that went beyond the typical pre-procedure assessment, modifier 25 is the mechanism to unbundle them and receive separate payment. Clinics that routinely perform procedures and fail to append modifier 25 when appropriate are systematically underpaid.
Documentation is what makes modifier 25 defensible. The medical record must support that a separate E&M decision-making process occurred, distinct from the procedure itself. Attaching modifier 25 to every E&M on the same day as a procedure, regardless of documentation, is an audit trigger. The modifier must be earned through the note, not attached reflexively.
AAPC and CMS guidance both emphasize that modifier 25 applies to the E&M code, not the procedure code. The E&M must meet the requirements for the level billed independently of the procedure. Dermatology, urgent care, and multi-service outpatient visits are among the settings where modifier 25 comes up most frequently and where proper use has the largest revenue impact.
What good looks like
CMS National Correct Coding Initiative (NCCI) edits define which procedure-E&M pairs require modifier 25 to bypass bundling. The NCCI edit tables are updated quarterly. CMS and AAPC both publish guidance on appropriate modifier 25 use. OIG work plans have periodically included modifier 25 audits, meaning misuse carries real compliance risk.
Example
A patient presents to an urgent care with a laceration. The provider evaluates the patient's overall condition (elevated blood pressure, medication review), makes clinical decisions about the visit beyond the laceration repair itself, and then performs the repair. The E&M service (CPT 99213 or 99214 depending on complexity) is separately documented and billed with modifier 25. Without modifier 25, the payer bundles the E&M into the repair code and pays only the procedure. Adding modifier 25 with supporting documentation unlocks separate payment for both services.
From Sorso
Modifier 25 is one of the highest-value modifiers for urgent care and dermatology practices. In a coding review, we commonly find that practices are either overusing it without adequate documentation or underusing it on legitimate same-day E&M and procedure encounters.
Founder of Sorso. 19 years in corporate finance. Managed a $450M loan portfolio before building a fractional CFO firm exclusively for healthcare clinics.
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