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CPT Modifier 99
Description:
Multiple modifiers
Guidelines/Instructions:
CPT modifier 99 may be submitted when it is necessary to indicate more than four modifiers on a single detail line or service.
- Although the current CPT manual specifies that CPT modifier 99 may be used when it is necessary to indicate more than two modifiers on a single detail line or service, Palmetto GBA will accept up to four modifiers
- Electronic claims: submit the specific modifiers represented by CPT modifier 99 in Loop 2300, or 2400, NTE, 02.
- Paper claims: submit the five or more additional modifiers in Item 19 of the CMS-1500 claim form