CARC 242 Active

CO-242: Services Not Provided by Network/Primary Care Providers

TL;DR

The service was not from a network/PCP provider. Appeal with network documentation or obtain a PCP referral.

Action

Appeal

Who Pays

Provider

Appeal

Yes

Patient Impact

None

Disclaimer

This content is for informational purposes only and does not constitute professional billing advice. Always verify information against your payer contracts and current coding guidelines. Consult a certified billing specialist for specific claim issues.

What Does CO-242 Mean?

With CO, the out-of-network denial is contractual. If the provider is in-network, appeal with network status documentation. If out-of-network, explore exceptions or redirect.

CARC 242 indicates that the service was rendered by a provider who is outside the patient's required network or is not the patient's designated primary care provider, and the patient's plan requires these services to come from network or PCP providers. This is common in HMO and gatekeeper plans where patients must use in-network providers and obtain services through or under the direction of their assigned primary care provider.

The denial means the plan does not cover services from out-of-network providers or non-PCP providers for this service type. The patient may need to receive the service from their designated network provider, or obtain a referral from their PCP.

Common Causes

Cause	Frequency
Services rendered by out-of-network provider The provider who performed the services is not part of the patient's insurance network, resulting in denial of the claim	Most Common
No referral from primary care provider The patient's plan requires a referral from their primary care provider for specialist services, and no referral was obtained	Most Common
Provider's network status changed The provider was previously in-network but their contract expired or was terminated before the date of service	Common
Wrong provider NPI or billing entity used The claim was submitted under a provider or billing entity that is not in the patient's network, even though the rendering provider may be in-network	Common
HMO plan without out-of-network benefits The patient's HMO plan does not provide out-of-network coverage and all services must be received from network providers	Occasional

How to Resolve

Verify network status Confirm the provider's network participation.
Appeal if in-network If the provider is in the network, submit network participation documentation.
Obtain PCP referral If a referral is required, obtain one and resubmit.

Appeal Guide

Appeal if you can demonstrate the provider is in-network (include contract documentation or network directory listing), if a valid referral exists, or if emergency/No Surprises Act protections apply. For emergency services, reference the applicable state or federal emergency care protections.

Common RARC Pairings

The RARC code tells you exactly what triggered the CO-242:

RARC	Description
N130	Consult plan benefit documents/guidelines for coverage of this service. Review the patient's plan network requirements and referral policies →
N381	Alert: Consult your contractual agreement for restrictions, billing, and payment information. Review your network participation agreement with the patient's plan →

How to Prevent CO-242

Verify patient network requirements and PCP referral requirements before providing services
Maintain current network participation records with all payers
Help patients understand their plan's network and referral requirements

General Prevention

Verify your network status with the patient's insurance plan before providing services
Ensure referrals from the patient's PCP are obtained before specialist visits when required
Maintain current network contracts and renew before expiration
Implement insurance verification at scheduling that checks network status
Inform patients of their plan's network requirements and referral process at scheduling
Review new patient insurance cards against your contracted payer list

Also Filed As

The same CARC 242 may appear with different Group Codes:

PR-242 OA-242

Related Denial Codes

CO-160 — Benefit Exclusion: Injury from Excluded Activity CO-166 — Payer's Responsibility Ended Before Service Date CO-169 — Alternate Benefit Provided CO-177 — Patient Has Not Met Required Eligibility Requirements CO-188 — Product/Procedure Not Covered Unless FDA-Recommended

Sources

https://x12.org/codes/claim-adjustment-reason-codes
https://www.mdclarity.com/denial-code/242
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
Codes maintained by X12. Visit x12.org for official definitions.