What Is Modifier 24?

Are you curious to know what is modifier 24? You have come to the right place as I am going to tell you everything about modifier 24 in a very simple explanation. Without further discussion let’s begin to know what is modifier 24?

In the intricate world of medical coding and billing, modifiers play a crucial role in ensuring that healthcare providers are properly reimbursed for their services. Modifier 24 is one such code that healthcare professionals and medical billers frequently encounter. In this blog, we’ll delve into what Modifier 24 is, its significance, and how it affects medical billing and reimbursement.

What Is Modifier 24?

Modifier 24 is a two-digit alphanumeric code used in medical billing and coding to indicate that an evaluation and management (E/M) service provided to a patient is unrelated to a procedure or surgery that the patient has previously undergone. In other words, it is used when a healthcare provider performs a distinct and separate E/M service on a patient that is not directly related to a surgical or procedural follow-up.

Key Points About Modifier 24:

  1. Unrelated E/M Service: Modifier 24 is applied when a patient, who has had a recent surgery or procedure, requires a subsequent E/M service for an unrelated health issue or condition. This modifier is essential for distinguishing between services that are part of the post-operative care package and those that are separate and distinct.
  2. Global Surgical Package: Most surgical and procedural services come with a “global surgical package,” which includes pre-operative, intra-operative, and post-operative services. Modifier 24 is used when the E/M service is outside the global surgical package and unrelated to the surgical procedure.
  3. Documentation Is Key: Proper documentation is crucial when using Modifier 24. The medical record should clearly indicate the reason for the E/M service, demonstrating that it is not a part of the surgical procedure’s post-operative care.

Why Modifier 24 Is Significant?

Modifier 24 plays a vital role in medical billing and coding for several reasons:

  1. Proper Reimbursement: Using Modifier 24 ensures that healthcare providers are accurately reimbursed for the additional E/M service they provide. It helps prevent denials or underpayments for unrelated E/M services.
  2. Compliance: Accurate and appropriate use of modifiers is essential for compliance with medical coding and billing guidelines. Proper use of Modifier 24 ensures that healthcare providers adhere to billing regulations.
  3. Transparency: Modifier 24 provides transparency in medical billing by clearly distinguishing unrelated E/M services from post-operative care. This helps payers and auditors review claims with confidence.
  4. Cost Control: For insurance companies and payers, Modifier 24 helps control costs by preventing overpayment for unrelated services and ensuring that providers are only reimbursed for necessary, unrelated care.

Common Scenarios For Modifier 24

Modifier 24 is commonly used in the following scenarios:

  1. Routine Follow-Up: A patient who recently underwent surgery for a broken bone returns to the orthopedic surgeon for a separate issue, such as an unrelated illness.
  2. Multiple Conditions: A patient with a chronic condition, like diabetes, has a surgical procedure and later seeks an E/M service for an unrelated issue or condition.
  3. Different Specialty: A patient who underwent a surgical procedure performed by one specialist consults a different specialist for an unrelated condition or health concern.

All factors for the numbers can be seen here on Factorsweb.


Modifier 24 is a valuable tool in the field of medical coding and billing. It ensures that healthcare providers are fairly compensated for unrelated E/M services performed on patients who have recently undergone surgical procedures. Proper documentation and accurate use of this modifier are essential to maintain compliance and transparency in the healthcare billing process, benefiting both providers and patients. Understanding and appropriately applying Modifier 24 is a key aspect of effective medical coding and billing practices.


What Is The Difference Between 24 And 25 Modifier?

Modifier 24 refers to the evaluation and management services provided to the patient on the day of a surgical procedure unrelated to the procedure itself. Modifier 25 identifies the evaluation and management services as unique services provided on the same day by the same medical professional.

Do You Use Modifier 24 Or 25 First?

Tip: Always use the postoperative modifier 24 first, before you use other modifiers. Most computers sequence their edits, putting the postoperative period edits as the primary edit.

What Is Cms Modifier 24?

Modifier “-24”: Reports an unrelated evaluation and management service by same physician during a postoperative period. The physician may need to indicate that an evaluation and management service was performed during the postoperative period of an unrelated procedure.

What Is The Cpt Code Modifier 24?

Use CPT modifier 24 for unrelated evaluation and management service during a postoperative (global) period. The global period of a major surgery is the day prior to, day of and 90 days after the surgery.

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