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Modifier 52

Modifier 52 Description and Billing Use

Plain-language description

Indicates that a service was partially reduced or eliminated under circumstances supported by the record.

How modifier 52 is used

Modifier 52 identifies a service that was partially reduced or eliminated at the provider's discretion under supported circumstances. Document what was planned, what was furnished, why the service was reduced, and how the reported code still describes the work.

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.