Use the links on the left and below to learn about specific modifiers including tips, decision flowcharts, and educational information. 

Modifier lookup tool

Use the modifier lookup tool to locate modifier details such as description, indicators, effective dates, payer information, and more.

Tips

• Append modifier 26 to indicate professional services whether in an office, inpatient or outpatient setting.
• Submit global services on one line. Do not append a modifier when submitting claims for global services; providers should only bill globally when they have performed the imaging service and the interpretation in an office setting.
• Append modifier 50 (bilateral procedure) to bilateral surgical procedure code(s) that require the use of a modifier except for ambulatory surgery centers (ASCs). To report bilateral procedures furnished in ASCs, review this article.
• Submit bilateral surgical procedure code(s) on one claim line / service line with one unit.
• Append modifier 51 (multiple procedures) to all surgical procedures that are billed in addition to the primary surgical procedure. 

Related links

• How to use modifiers to indicate the status of an ABN
• Appropriate use of assistant at surgery modifiers and payment indicators
• For more information on modifiers please access the Medicare Claim Processing Manual
• View billing and coding FAQs to find questions and answers pertaining to modifiers.
• Medicare Claims Processing Manual (IOM 100-04, Chapter 12)

On-demand learning

• E/M services: Coding with modifier 24 and 25
• Surgical modifiers 54, 55, 56, 58, 78 and 79
• Eliminate duplicate denials by billing with the proper modifiers