Remittance Advice Remark · Medicare adjustment
RARC MA66: Missing/incomplete/invalid principal procedure code.
Principal procedure code on inpatient claim is missing.
Code type
Remittance Advice Remark Code (RARC)
Category
Medicare adjustment
Source
X12 RARC list
What it means
The official X12 description: “Missing/incomplete/invalid principal procedure code.”
In plain language: Principal procedure code on inpatient claim is missing.
What to do
Provider corrects principal procedure and resubmits.
Frequently asked questions
What does RARC MA66 mean?
Missing/incomplete/invalid principal procedure code. In plain language: Principal procedure code on inpatient claim is missing.
What should I do when I see RARC MA66?
Provider corrects principal procedure and resubmits.
Commonly paired CARC codes
Sources
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