This document lists commonly used modifiers used in medical billing. Modifiers are critical in conveying specific details about how, where, when, and the circumstances in which a service was provided.

Modifiers XE, XP, XS, and XU are valid modifiers. These modifiers give greater reporting specificity in situations where you used modifier 59 previously. Use these modifiers instead of modifier 59 …

This material is designed to offer basic information on the use of modifiers in coding. This information is based on the experience, training and interpretation of the author.

Use modifiers to communicate certain information about a service performed or a product dispensed. Modifiers go in box 24D of the CMS-1500 billing form. More than one modifier may be appropriate …

Modifiers are designed to give Medicare and commercial payers additional information needed to process a claim. This includes HCPCS Level I (Physicians’ Current Procedural Terminology [CPT®]) …

Modifier 59 is an important NCCI PTP-associated modifier that physicians and providers often use incorrectly. This booklet will help you use this modifier correctly.

The following chart has been developed to assist providers in understanding how the Kansas Medical Assistance Program (KMAP) handles specific modifiers. It is imperative providers understand the …