RARC N519 Active Supplemental

RARC N519: Invalid Combination of HCPCS Modifiers

What This Means

The modifiers submitted on the claim are not valid together or are inconsistent with the HCPCS/CPT code billed. Common causes include using incompatible modifiers, applying a modifier not allowed for the procedure, or using an outdated modifier. Cross-reference the billed code with current modifier guidelines, correct the modifier combination, and resubmit the claim.

Disclaimer
This content is for informational purposes only. Always verify against your payer contracts and current coding guidelines.

Commonly Paired With

RARC N519 commonly appears alongside these CARC denial codes:

Code Name
CO-4 Procedure Code / Modifier Mismatch (also OA-4) →
CO-8 Procedure Inconsistent with Provider Specialty →
CO-11 Diagnosis Inconsistent with Procedure (also OA-11) →
CO-12 Diagnosis Inconsistent with Provider Type →
CO-89 Professional Fees Removed from Charges →
CO-90 Ingredient Cost Adjustment →
CO-117 Transportation to Nearest Facility →
CO-182 Invalid Procedure Modifier →
CO-189 Unlisted/NOC Code Used When Specific Code Exists →
CO-205 Pharmacy Discount Card Processing Fee →
CO-233 Hospital-Acquired Condition or Preventable Error (also OA-233) →
CO-B9 Patient Enrolled in Hospice (also OA-B9) →

Sources

  1. X12.org