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Modifier JW

Modifier JW Description and Billing Use

Plain-language description

Reports an applicable discarded amount from a single-dose container or package under current payer drug-wastage rules.

How modifier JW is used

JW reports the amount of an applicable separately payable Medicare Part B drug or biological discarded from a single-dose container or single-use package. Medicare generally requires the discarded amount on a separate claim line. Do not use JW merely because an administered dose is smaller than one billing unit.

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.