Remittance Advice Remark Code

RARC

claims

Updated 5/16/2026

Definition

A standardized code used on the X12 835 remittance advice transaction to explain why a claim or service line was adjusted or denied by a payer. RARC codes provide supplemental information alongside Claim Adjustment Reason Codes and are maintained by CMS for use in Medicare and commercial claims processing.

Standard Abbreviation

RARC

Database Usage

-- Example column naming
CREATE TABLE claims (
  clm_id VARCHAR(50),
  rarc VARCHAR(20),  -- Remittance Advice Remark Code (max 20 chars)
  ...
);

-- Example in SELECT
SELECT
  clm_id,
  rarc as remittance_advice_remark_code
FROM claims;

Common uses in healthcare data

Claims adjudication and remittance processing
837P/837I/837D claim file parsing and validation
Revenue cycle management and denial analytics
CMS cost report and Medicare cost reporting
Payer contract performance and underpayment analysis

Example database column name

ISO-11179 snake_case standard

-- Recommended column name
rarc

-- Example DDL
CREATE TABLE healthcare_data (
  record_id   VARCHAR(50)   NOT NULL,
  rarc         VARCHAR(20),  -- Remittance Advice Remark Code (max 20 chars)
  created_dt  TIMESTAMP     NOT NULL DEFAULT NOW()
);

Column names follow the ISO-11179 naming convention: lowercase, underscore-separated, using the standard abbreviation as a prefix where applicable.

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