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Modifier NU

Modifier NU Description and Billing Use

Plain-language description

Used when billing new equipment where applicable.

How modifier NU is used

NU identifies new equipment when the HCPCS code, payment category, and payer instruction call for a new-equipment modifier. NU does not establish medical necessity, coverage, purchase eligibility, or payment by itself.

Before reporting this modifier

  1. 1. Confirm the current official or licensed definition and payer acceptance.
  2. 2. Identify the exact claim circumstance the modifier communicates.
  3. 3. Make the code, setting, related services, and medical record consistent.
  4. 4. Check NCCI, global surgery, component, DME, ABN, or drug rules that apply.
  5. 5. Do not append a modifier only to force an edit override.
LessonStudy the related billing ruleOfficial sourceReview current CMS guidance

This is a workflow summary, not a licensed CPT definition or claim-specific coding instruction. Verify the code set and payer rule effective for the date of service.