CARC 58 appeal letter template — Inappropriate or Invalid Place of Service
CARC 58 means the payer determined the billed place of service (POS) was inappropriate or invalid for the service rendered. This template helps staff contest that determination when the POS billed is supported by documentation.
When to appeal vs. correct & resubmit
Appeal CARC 58 when the POS code billed accurately reflects where the service was actually performed and is supported by medical records, scheduling logs, or facility documentation. If the POS code was entered incorrectly on the claim, correct the POS code and resubmit (or submit a corrected claim) rather than appealing.
Appeal letter template
Copy the template, replace every [bracketed] field with your details, and keep only the paragraph that fits your situation.
[Date] [Payer Name] Attn: Appeals Department [Payer Address] Re: Appeal of Denial — CARC 58 (Inappropriate or Invalid Place of Service) Patient Name: [Patient Name] Member ID: [Member ID] Claim #: [Claim #] Date(s) of Service: [DOS] Provider: [Provider Name, NPI] CPT/HCPCS: [CPT/HCPCS] Place of Service Code Billed: [POS Code] Dear Appeals Reviewer, This letter appeals the denial of the above claim under CARC 58, which indicates that the service was deemed to have been rendered in an inappropriate or invalid place of service. We respectfully request reconsideration based on the information below. The place of service code billed, [POS Code], accurately reflects the setting in which [CPT/HCPCS] was performed for this patient on [DOS]. Supporting documentation, including [medical records/facility notes/scheduling records], is enclosed to substantiate that the service was appropriately rendered in this setting consistent with the nature of the service and the patient's clinical needs. We ask that the payer review the enclosed documentation and reconsider the denial. If any additional clarification or information is needed to support this determination, please contact our office at [Phone] or [Email]. Thank you for your attention to this matter. Sincerely, [Provider Name, NPI] [Practice Name] [Phone] [Email]
What to attach
- Explanation of Benefits (EOB)/Electronic Remittance Advice (ERA) showing the CARC 58 denial
- Medical records documenting the location and circumstances of the service
- Facility or scheduling records confirming the place of service
- Provider notes describing clinical rationale for the setting used
- Copy of the original claim as submitted
Frequently asked questions
What does CARC 58 mean?
CARC 58 means the payer determined that the service was rendered in a place of service that is inappropriate or invalid for the billed procedure or service type.
When should I appeal instead of correcting the claim?
Appeal only if the place of service billed is correct and documentation supports that setting. If the POS code was entered in error, correct it and resubmit the claim instead of appealing.
What documentation best supports a CARC 58 appeal?
Medical records, facility documentation, or scheduling logs that confirm the actual location where the service was performed are typically most helpful.
Is a successful outcome guaranteed if I submit this appeal?
No. Appeals are reviewed case-by-case by the payer, and outcomes are never guaranteed regardless of documentation submitted.
More free billing tools: all appeal letters · denial codes · NCCI edits · Medicare fees
This template is provided for informational and administrative purposes only and does not constitute legal, billing, or coding advice. It is a generic fill-in-the-blank starting point; verify all information against payer policies and documentation before submission. Use of this template does not guarantee that an appeal will be successful or overturned.
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