CPT Modifier 99

Published 07/09/2024

Description
Multiple Modifiers (same procedure code/detail line)

Guidelines and Instructions
When additional Modifier field/block space is needed than what is available for a submission (if more than four) replace all modifiers’ entries on the line with only “99.”

  • Reflect all modifiers involved in the appropriate/other field of the electronic or paper claim form
  • Modifier 99 applies as a replacement to any applicable modifier combination, including those identified as informational or pricing as well as those which may impact payment

References


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