CARC 206: National Provider Identifier (NPI) — missing.
National Provider Identifier (NPI) — missing.
CARC 206 is the code your insurance company used to explain why your claim was reduced, denied, or paid less than expected. It appears on your Explanation of Benefits (EOB) — the statement your plan sends after a claim is processed. Here's what it means for you and what you can do about it.
What CARC 206 means
The official X12 description is: “National Provider Identifier (NPI) — missing.”
In plain language: National Provider Identifier (NPI) — missing.
What to do next 206
Appeal with documentation specific to this code. The provider's billing office can help clarify what the carrier wants.
DenialHelp drafts the appeal letter for you in about five minutes. We cite the federal appeal-rights regulation that applies to your plan type (ACA §2719, ERISA §503, NSA §2799A, 42 CFR 422 Subpart M, or 42 CFR 438 Subpart F), the insurer's own coverage policy, and the relevant clinical guideline.
CARC 206 group codes explained
On the 835 ERA, CARC 206 appears alongside a group code that signals who is financially responsible for the adjustment. CO (Contractual Obligation) — Contractual write-off. The provider agreed to the rate. Patient does NOT owe this amount.
Frequently asked questions
What does CARC 206 mean?
National Provider Identifier (NPI) — missing. In plain language: National Provider Identifier (NPI) — missing.
Is CARC 206 appealable?
Yes — CARC 206 is one of the codes that commonly supports an appeal. Appeal with documentation specific to this code. The provider's billing office can help clarify what the carrier wants.
Which group code does CARC 206 appear under?
CARC 206 most often appears under: CO (Contractual Obligation) — Contractual write-off. The provider agreed to the rate. Patient does NOT owe this amount.
How do I appeal a CARC 206 denial?
Appeal with documentation specific to this code. The provider's billing office can help clarify what the carrier wants.
Related resources
Sources
Appeal a CARC 206 denial
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