N216 | Missing authorization

Industry

Insurance

Canonical

/insurance/healthcare/error-codes/n216/

Last Updated

Feb 25, 2026

Summary

This code indicates that required authorization was missing for the billed service.

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Use these links to pivot between the directory, a focused guide, and nearby related codes.

Hub

Guides

The Complete Insurance Claim Denial Codes Directory (2026 Edition)

Related Codes

What This Code Means

N216 is applied when payer records do not show a required authorization. This is an administrative requirement tied to benefit management. The code does not reflect service quality. Coverage eligibility may depend on authorization compliance.

Where Users Usually See This Code

Remittance advice remarks
EOB explanations
Authorization review notices

Why This Code Appears

Authorization not obtained
Authorization details missing
Authorization expired or invalid

What Typically Happens Next

Payment is denied or delayed
Claim processing completes or pauses
Appeal pathways may exist

What This Code Is Not

It is not a billing format error
It is not patient responsibility
It is not a contractual adjustment

Troubleshooting Checklist

□ Review authorization requirements
□ Confirm authorization records
□ Monitor payer policies

Notes And Edge Cases

Authorization requirements vary by payer. Emergency services may follow different rules.

Related Codes

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