Skip to main content

Claim Adjustment Reason Code

EOB denial code CO-147: what it means

CARCCO

CO-147CARCCOAppealability depends

What it means

The insurer does not have a current contracted rate on file for this provider, so it could not price the claim normally.

Contractual Obligation — an adjustment the provider agreed to by contract. The patient is generally not billed for CO amounts.

Official X12 description

Provider contracted/negotiated rate expired or not on file

Typical cause

A lapsed or not-yet-loaded provider contract on the insurer's side.

What to do next

  1. 1This is a provider/insurer contracting issue, not a patient-owed amount.
  2. 2Ask the provider's billing office to confirm their contract status with the insurer.
Last verified June 16, 2026Reviewer signoff pending (dev preview)

Primary sources

The official short description above is transcribed verbatim from the X12 published code list.