CO 75 denial code
Claim adjustment reason code 75. Often reported as CO 75.
Direct teaching cost adjustment
Unofficial reference. This is our own plain-English explanation, not the official code text. Payer rules differ. Verify with the payer and the official X12 code list. AlphaPrefix is not affiliated with X12, CMS or any payer. Data last updated .
What 75 means
The claim payment was adjusted for the hospital's direct graduate medical education costs.
Direct medical education covers costs such as resident salaries and teaching staff. Some payers carve that portion out of or into each inpatient claim, and this code shows the amount involved.
Like the other teaching adjustments, it is a pricing detail rather than a coding problem. Variances are usually a rate setup question for the payer and the hospital's reimbursement staff.
Group codes seen with 75
On a remittance, 75 comes after a group code. These are the ones it is most often reported with:
- CO 75 (Contractual Obligation): The provider's side of the ledger. The reduction comes from the payer contract or a rule the provider has to follow, and the patient normally cannot be billed for it.
The payer chooses the group code for each adjustment, so the same reason code can appear with another group code on your remittance. Read the two together. More about group codes.
Common causes
- The payer handles graduate medical education costs separately from the base claim payment.
- The hospital's education rate or resident count on the payer's file changed.
- The payer carved the education amount out of a managed care claim.
What to do next
- Confirm whether your contract expects education costs on each claim or through a separate process.
- Reconcile the adjustment to the expected amount and flag recurring differences to reimbursement staff.
- Keep the remittance detail, since cost report or settlement work may rely on it.
Related codes
- 74 (reason code) Indirect teaching cost adjustment
- 76 (reason code) Low-income patient load adjustment
Source
Official wording: X12 Claim Adjustment Reason Codes list. The explanation on this page is our own plain-English wording, not the X12 text.
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