CO-184: Prescribing/Ordering Provider Not Eligible to Prescribe/Order
Verify the ordering provider's enrollment and authority. Correct errors and resubmit, or appeal with credential documentation.
What Does CO-184 Mean?
With CO (Contractual Obligation), the ineligible ordering provider is the provider's contractual responsibility. Verify the ordering provider's credentials and enrollment, correct any errors, and resubmit. If the provider is eligible, appeal with comprehensive documentation.
CARC 184 indicates that the prescribing or ordering provider listed on the claim does not meet the payer's requirements for writing prescriptions or orders. This could mean the ordering provider is not enrolled with the payer, their NPI is invalid, their license type does not authorize prescriptive authority for the specific service or medication, their DEA number is expired, or they have been excluded from federal healthcare programs.
This code commonly affects claims for DME, home health services, laboratory tests, and prescription medications where a valid order from an eligible provider is mandatory. The payer validates the ordering provider's credentials during claim processing and rejects claims when the provider does not meet prescriptive authority requirements.
Common Causes
| Cause | Frequency |
|---|---|
| Prescribing/ordering provider not enrolled with the payer The provider who wrote the prescription or order is not enrolled or credentialed with the payer, invalidating the order for claim processing | Most Common |
| Provider NPI is invalid or inactive The NPI listed for the prescribing/ordering provider is either invalid, inactive, or not found in the payer's provider directory | Most Common |
| Provider type not authorized to prescribe/order this service The provider's licensure or type does not authorize them to prescribe or order the specific service, medication, or equipment billed | Common |
| DEA number or prescriptive authority issue For medications, the prescribing provider's DEA number is invalid, expired, or does not authorize prescribing the specific drug category | Common |
| Ordering provider excluded from federal healthcare programs The ordering provider has been excluded or sanctioned, making their orders ineligible for reimbursement | Occasional |
How to Resolve
- Verify enrollment and NPI Confirm the ordering provider's NPI and enrollment status with the payer.
- Check prescriptive authority Verify the provider's license authorizes ordering this specific service or medication.
- Correct errors and resubmit If the NPI was wrong, correct it. If the provider is not enrolled, obtain a new order from an enrolled provider.
- Appeal if the provider is eligible Submit enrollment confirmation, licensure records, and prescriptive authority documentation with the appeal.
- Check exclusion status Verify the ordering provider has not been excluded from federal programs via the OIG exclusion list and SAM.gov.
Appeal with documentation proving the ordering/prescribing provider is enrolled, licensed, and has appropriate prescriptive authority for the service or medication ordered.
Common RARC Pairings
The RARC code tells you exactly what triggered the CO-184:
| RARC | Description |
|---|---|
| N95 | This provider type/provider specialty may not prescribe/order this service Verify the ordering provider's credentials and prescriptive authority → |
| N130 | You may need to review plan documents or guidelines Review the payer's requirements for ordering/prescribing provider eligibility → |
How to Prevent CO-184
- Verify ordering/prescribing provider enrollment status before processing orders
- Maintain accurate ordering provider NPI records in the billing system
- Confirm the ordering provider has appropriate prescriptive authority for the service or medication
- Check provider eligibility against the OIG exclusion list and SAM.gov
- Ensure ordering providers maintain current enrollment with relevant payers
Also Filed As
The same CARC 184 may appear with different Group Codes:
Related Denial Codes
Sources
- https://www.mdclarity.com/denial-code-carcs
- https://x12.org/codes/claim-adjustment-reason-codes
- https://portal.ct.gov/-/media/ohs/health-it-advisory-council/apcd-advisory-group/data-submission-guide-workgroup/meeting-materials/6-30-22/carc-codes_final.pdf
- https://www.cms.gov/regulations-and-guidance/guidance/transmittals/downloads/R743CP.PDF
- Codes maintained by X12. Visit x12.org for official definitions.