RARCN38ReferenceHistorical / DeactivatedVerified Aug 15, 2026

RARC N38

Historical / Deactivated code: Heads up

RARC N38 is no longer valid for current transactions. It may still appear on older remittance advices — treat it as reference for historical documents only.

AR Guide Workflow

Missing Information

The claim was missing required information or had a submission or billing error, so the payer could not process it. This is usually a correction, not an appeal.

Open denial workflow

AR Guide explanation

What it means

The place of service is missing, incomplete, or invalid.

AR Guide knowledge

Common denial category

Missing Information — The claim was missing required information or had a submission or billing error, so the payer could not process it. This is usually a correction, not an appeal.

AR Guide knowledge

Common usage

Claims with POS issues (often with CARC 16)

About this guidance: Note

AR Guide knowledge is general reference content written by our team — it is not payer-specific policy and never replaces the payer’s documentation or your contract. Always confirm specifics with the payer.

Reference

Commonly paired CARCs

CARCs this remark commonly accompanies on the ERA/EOB, per the AR Guide pairing data.

CARC4The procedure code is inconsistent with the modifier used. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.
CARC7The procedure/revenue code is inconsistent with the patient's gender. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.
CARC11The diagnosis is inconsistent with the procedure. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.
CARC12The diagnosis is inconsistent with the provider type. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.
CARC16Claim/service lacks information or has submission/billing error(s). Usage: Do not use this code for claims attachment(s)/other documentation. At least one Remark Code must be provided (may be comprised of either the NCPDP Reject Reason Code, or Remittance Advice Remark Code that is not an ALERT.) Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.
CARC163Attachment/other documentation referenced on the claim was not received.
CARC199Revenue code and Procedure code do not match.
CARC206National Provider Identifier - missing.
CARC208National Provider Identifier - Not matched.
CARC226Information requested from the Billing/Rendering Provider was not provided or not provided timely or was insufficient/incomplete. At least one Remark Code must be provided (may be comprised of either the NCPDP Reject Reason Code, or Remittance Advice Remark Code that is not an ALERT.)
CARC236This procedure or procedure/modifier combination is not compatible with another procedure or procedure/modifier combination provided on the same day according to the National Correct Coding Initiative or workers compensation state regulations/ fee schedule requirements.
CARC240The diagnosis is inconsistent with the patient's birth weight. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.
CARC252An attachment/other documentation is required to adjudicate this claim/service. At least one Remark Code must be provided (may be comprised of either the NCPDP Reject Reason Code, or Remittance Advice Remark Code that is not an ALERT).

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