CO-97 — Bundled — included in another adjudicated service
Claim-adjustment reason code 97 · typically reported as CO-97
What it means
Payment for this line is considered part of another service already paid — typically an NCCI procedure-to-procedure (PTP) bundling edit.
Why DME claims hit it
- Supplies billed separately that are included in the device allowable
- Component HCPCS billed alongside a comprehensive code (NCCI column 1/column 2 pair)
- Repair parts billed during a rental period (maintenance is in the rental payment)
How to fix it
- Check the NCCI PTP pair: if a modifier indicator allows it and circumstances justify (e.g., different anatomic site), resubmit with the appropriate modifier
- If truly bundled, write off and stop billing the component separately
Appeal posture
Only when the modifier-indicator path applies and documentation supports separate payment.
Related denial codes
CO-236 — Procedure combination not allowed togetherCO-45 — Charge exceeds the fee schedule / allowed amount
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