What does CARC 58 mean?

CARC 58 means "Treatment was deemed by the payer to have been rendered in an inappropriate or invalid place of service.". The recommended action is: Correct place of service code or appeal with documentation supporting the setting.

How do I resolve CARC 58?

Pull the original claim and review the denial reason and any RARC codes Research the payer's policy for CARC 58 to understand the basis for denial Gather supporting documentation addressing the denial reason Submit a formal appeal with the documentation within the plan's appeal window Follow up on the appeal within 30 days and document all communication

Can CARC 58 be appealed?

CARC 58 has a 35% recovery rate and typically resolves in 21-45 days. Resolution difficulty is rated Hard.

CARC Code

58

🔴 Hard Denial

Treatment was deemed by the payer to have been rendered in an inappropriate or invalid place of service.

35%

Recovery Rate

21-45 days

Avg. Resolution

Hard

Difficulty

Occasional

Frequency

Recommended Action

Correct place of service code or appeal with documentation supporting the setting

Step-by-Step Resolution

1
Pull the original claim and review the denial reason and any RARC codes
2
Research the payer's policy for CARC 58 to understand the basis for denial
3
Gather supporting documentation addressing the denial reason
4
Submit a formal appeal with the documentation within the plan's appeal window
5
Follow up on the appeal within 30 days and document all communication

Payer-Specific Notes

How major payers handle CARC 58 in practice.

MetLife Dental

MetLife provides detailed denial reason codes — check EOB for supplemental information.

Common 835 Combinations

CARC 58 most often appears with these Group Code + RARC combinations on 835 remittances.

COCO-58Appealable COCO-58+N198Appealable

Look up any combination →

Appeal Letter Template

Enter your email to access the full appeal template for CARC 58.

We are submitting a formal appeal for claim [CLAIM_NUMBER] for patient [PATIENT_NAME], date of service [DOS]. This claim was denied/adjusted with CARC 58 indicating: "Treatment rendered in an inappropriate or invalid place of service.." We have reviewed the claim and are providing the attached documentation to support reconsideration. [SUPPORTING_DOCUMENTATION]. Please reconsider payment per the terms of our contract.

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