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CO-205 Adjustment Code: Pharmacy Discount Card Fee

CO-205 reports a pharmacy discount card processing fee. It's an adjustment for the fee charged when a prescription is processed through a discount card program, not a clinical denial. It applies mainly to pharmacies.

Quick facts

Code
CO-205 (CARC 205)
Status
Active In use since July 9, 2007.
Code set
Claim Adjustment Reason Codes (CARC)
Group codes
  • CO (Contractual Obligation): The processing fee is a contractual cost the pharmacy absorbs under its discount card agreement. It isn't billed to the patient.
  • OA (Other Adjustment): Some processors report the fee as an other adjustment. Treat it the same way: a program fee, not a patient balance.
Official description
Pharmacy discount card processing fee
X12 Claim Adjustment Reason Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What CO-205 means

CARC 205 reads “Pharmacy discount card processing fee.” Discount card programs negotiate lower prescription prices for patients, often for people without insurance or for drugs their plan doesn’t cover. When a pharmacy processes a prescription through one of these programs, the processor may deduct a fee from the pharmacy’s reimbursement. CARC 205 identifies that fee on the remittance.

It is informational from a denial standpoint: the claim was processed and the fee applied as the program’s terms dictate.

Example: a patient uses a discount card for a prescription. The pharmacy collects the discounted price from the patient, and the processor’s remittance shows a per-claim fee as CO-205, which the pharmacy posts as a program expense.

When CO-205 needs attention

  • The fee differs from the contract, or appears on claims that shouldn’t carry it.
  • The fee exceeds the margin on low-cost generics, making certain claims unprofitable.
  • The fee appears on a claim the pharmacy believes was processed under the patient’s insurance rather than a discount card, which suggests the wrong processor or BIN was used.
  • Posting systems treat it as a patient balance, creating incorrect bills.
  • Volume grows without the pharmacy tracking total fees paid.

How to handle it

  1. Identify fee amounts on each remittance by CARC 205.
  2. Post them to a dedicated fee or expense account, not to the patient.
  3. Reconcile against the program agreement for the fee structure.
  4. Contact the program or network if fees are applied incorrectly.
  5. Evaluate participation in programs whose fees consistently outweigh the benefit, based on your own contract review.

How to keep it clean

  • Map CARC 205 in pharmacy posting rules so it’s never billed to patients.
  • Report fees by program each month to understand total cost.
  • Keep current copies of discount card agreements available to staff who reconcile remittances, including any fee schedule updates the program sends.
  • Review payment patterns across programs. ERA Analyzer can separate fees from other adjustments on remittances. For reading adjustment codes in general, see CARC and RARC analysis.
  • CO-45 (Charge exceeds fee schedule/maximum allowable or contracted/legislated fee arrangement.): The standard contractual reduction for a fee schedule or maximum allowable amount.
  • CO-131 (Claim specific negotiated discount.): A claim-specific negotiated discount.
  • CO-144 (Incentive adjustment, e.g. preferred product/service.): An incentive adjustment, which increases rather than reduces payment.

CO-205 FAQ

What is a pharmacy discount card?

It's a program that gives patients discounted prices on prescriptions, usually outside of their insurance. The pharmacy processes the prescription through the card's processor, which may charge the pharmacy a fee per claim.

Who sees CO-205?

Mainly retail and specialty pharmacies that accept discount cards. Medical practices rarely see it.

Can the processing fee be disputed?

Only under the terms of the pharmacy's agreement with the discount card program or its network. Compare fees on remittances to the contract.

Is CO-205 a denial?

No. The prescription was processed and paid under the discount program. The code only identifies the fee deducted from the pharmacy's reimbursement.

Can the fee be passed on to the patient?

Generally not. The fee arises from the pharmacy's agreement with the program, and the patient pays the discounted price the card promises. Check your program agreement for any exceptions.