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Modifier Q6 Fact Sheet


  • Services furnished by a locum tenens physician

Appropriate Usage

  • When a physician agrees to see patients of another physician under arrangements of the original physician
  • The regular physician is not available to see patients
  • The patient arranges or seeks service of their regular physician
  • Short term coverage provided, under 60 days
  • The physician seeing the patient is not in practice for themselves, or employed as part of another practice

Inappropriate Usage

  • When the physician is covering for an absence of a long term
  • When the physician is in the same group

CMS Resources
CMS Internet Only Manual 100-04 Chapter 1 Section 30.2.11

Note: The regular physician maintains the records, and states who saw the patient that day by name and National Provider Identifier (NPI).