PR-16: Missing Information or Billing Error
The patient didn't provide information the payer needs. Contact the patient for the missing data — if they can supply it, resubmit; if not, bill them directly.
What Does PR-16 Mean?
PR-16 means the patient is financially responsible for the denial because they failed to provide required information. This typically occurs when the patient did not supply current insurance details, did not obtain a necessary referral, or failed to provide accident/injury information needed for claim processing.
CARC 16 is one of the most frequently encountered denial codes in medical billing. It fires when the payer's adjudication system determines that the claim lacks information needed to process it, or that submitted data contains errors preventing proper adjudication. The code is intentionally broad — the accompanying RARC code is what tells you the specific problem.
The financial impact of CARC 16 depends entirely on the Group Code. When filed as CO-16, the provider bears the cost and must correct and resubmit. When filed as PR-16, the patient is financially responsible — typically because they failed to provide necessary information like current insurance details or a required referral. OA-16 appears most often on secondary claims where primary payer remittance data is missing.
Despite being common, CARC 16 denials are among the most preventable. Most stem from data entry errors, missing fields, or outdated patient information — all issues that front-end verification and claim scrubbing can catch before submission.
Common Causes
| Cause | Frequency |
|---|---|
| Patient failed to provide current insurance information Patient did not present updated insurance card, provided expired or incorrect policy number, or failed to disclose a change in coverage | Most Common |
| Patient did not obtain required referral Patient's plan requires a referral from their PCP but the patient did not obtain one before receiving services | Common |
| Patient failed to provide accident or injury details When services are related to an accident or injury, the patient did not supply required information such as date of injury, workers' comp details, or third-party liability info | Common |
| Missing or incorrect patient demographic details Patient provided wrong date of birth, address, or other demographic information that the provider submitted as-is to the payer | Common |
How to Resolve
Resolution depends on the Group Code: CO requires correction and resubmission, PR may require patient contact or billing, and OA typically needs additional documentation.
- Review the RARC code Identify exactly what patient-supplied information is missing — insurance details, referral documentation, accident information, etc.
- Contact the patient Reach out to the patient to obtain the missing information. This may include updated insurance cards, referral numbers, or injury details.
- Verify the denial is correct Confirm the missing information was truly the patient's responsibility to provide. If it was a billing error on your end, contact the payer to have it reclassified as CO.
- Resubmit or bill patient If the patient provides the missing information, correct and resubmit the claim. If they cannot, bill the patient for the denied amount.
PR-16 indicates the patient is financially responsible. Instead of appealing, collect the missing information from the patient and resubmit, or bill the patient for the denied amount. If you believe the denial should have been CO instead of PR, contact the payer directly.
Common RARC Pairings
The RARC code tells you exactly what triggered the PR-16:
| RARC | Description |
|---|---|
| MA130 | General missing/incomplete/invalid information Contact patient for missing information → |
| MA63 | Missing/invalid date of birth Verify patient DOB with patient → |
| N362 | Missing/incomplete/invalid patient insurance information Collect updated insurance details from patient → |
How to Prevent PR-16
- Verify insurance information at every visit by photographing both sides of the card
- Confirm referral requirements before rendering services
- Use intake forms that capture accident and injury details upfront
- Send pre-visit reminders asking patients to bring updated insurance documentation
General Prevention
- Collect and verify patient insurance information at every visit, including photographing both sides of the insurance card
- Confirm referral requirements with the patient's plan before rendering services and document the referral number
- Use patient intake forms that capture accident/injury details, workers' comp information, and third-party liability data upfront
- Send pre-visit reminders asking patients to bring updated insurance cards and referral documentation
- Implement real-time eligibility verification at check-in to catch coverage changes before the visit
Also Filed As
The same CARC 16 may appear with different Group Codes:
Related Denial Codes
Sources
- https://www.mdclarity.com/denial-code/16
- https://etactics.com/blog/denial-code-co16
- https://www.medstates.com/co-16-denial-code/
- https://medsolercm.com/blog/denial-codes-co-16-denial-code
- https://denialcode.com/16
- https://droidal.com/blog/medical-billing-denial-codes/
- Codes maintained by X12. Visit x12.org for official definitions.