Modifiers indicate that a service or procedure performed has been altered by some specific circumstance, but not changed in its definition or code. They are used to add information or change the description of service to improve accuracy or specificity. Modifiers can be alphabetic, numeric or a combination of both, but will always be two digits.

Understanding the Context

Modifiers (usually 2-digits) are added to the main procedure code to signify that the procedure has been altered by a distinct factor. Modifiers are accepted by most payors. Modifiers can increase or ... CPT modifiers are two-character codes (numeric or alphanumeric) added to CPT procedure codes to provide additional information about the service provided.

Key Insights

A modifier provides the means by which the reporting provider can indicate that a service or procedure that has been performed has been altered by some specific circumstance but not changed in its definition or code. A modifier provides the means by which the reporting physician or provider can indicate that a service or procedure that has been performed has been altered by some specific circumstance but not changed in its definition or code. Modifiers can be two digit numbers, two character modifiers, or alpha-numeric indicators. Modifiers provide additional information to payers to make sure your provider gets paid correctly for services rendered. What Are Medical Coding Modifiers?

Final Thoughts

A medical coding modifier is two characters (letters or numbers) appended to a CPT ® or HCPCS Level II code. The modifier provides additional information about the medical procedure, service, or supply involved without changing the meaning of the code. Medical Coding Modifiers - CPT®, NCCI & HCPCS Level II - AAPC