PR-242 / CO-242: Out of network
Triage: Verify credentialing, then appeal or bill
By Dr. Daniel Turner, DC · Reviewed September 2, 2026
What does denial code PR-242 / CO-242 mean?
The payer processed the rendering provider as out of network. On the PR version the balance moved to the patient; on the CO version the payer holds the provider responsible.
What does PR-242 / CO-242 usually mean in a chiropractic office?
A surprising share of these are wrong. Network rosters drift out of sync, especially after carve out managers refresh their files, and a credentialed provider suddenly processes as out of network.
How do you fix a PR-242 / CO-242 denial?
- Verify the provider network status for that payer and plan as of the date of service.
- If in network, appeal with the contract or roster proof; these appeals win.
- If genuinely out of network, the PR amount is patient billable and the network decision becomes a business question.
What this looks like in practice
A carve out manager refreshes its network roster and drops a credentialed provider by clerical error. Every claim for that provider starts denying 242 as out of network. The office that assumes the payer is right writes off a month of visits. The office that pulls its contract and appeals gets every claim reprocessed.
How to stop it from happening again
- ✓Verify network status against your own contract records before accepting any 242 at face value
- ✓Watch for 242 clusters after carve out transitions; roster sync errors come in batches
- ✓Keep credentialing effective dates on file so appeals ship with proof attached
How Cervica handles PR-242 / CO-242
Cervica routes 242 to a credentialing verification step first, so real roster errors get appealed instead of absorbed.
Related codes
- →PR-100 / CO-100 · Payer paid the patient, not the practice
- →CO-204 · Not covered under the patient plan
Quick answers
What does denial code PR-242 / CO-242 mean?
The payer processed the rendering provider as out of network. On the PR version the balance moved to the patient; on the CO version the payer holds the provider responsible.
What does PR-242 / CO-242 usually mean in a chiropractic office?
A surprising share of these are wrong. Network rosters drift out of sync, especially after carve out managers refresh their files, and a credentialed provider suddenly processes as out of network.
How do you fix a PR-242 / CO-242 denial?
Verify the provider network status for that payer and plan as of the date of service. If in network, appeal with the contract or roster proof; these appeals win. If genuinely out of network, the PR amount is patient billable and the network decision becomes a business question.
General information for billing teams, not legal or payer specific advice. CARC definitions belong to X12; payer policies vary and control. Verify against the payer contract before acting on any individual claim.