CARC 204 Active

PR-204: Service/Equipment/Drug Not Covered Under Benefit Plan

TL;DR

Service not covered. Patient pays. Verify coding first, then bill patient or appeal if medically necessary.

Action

Appeal

Who Pays

Patient

Appeal

Yes

Patient Impact

Direct Financial

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 PR-204 Mean?

PR-204 means the payer has determined the service is not covered under the patient's benefit plan, and the patient is financially responsible for the charges. This is a direct financial impact to the patient. Before billing the patient, verify that the denial is not due to a coding error on the provider's side.

CARC 204 flags that the item or service billed is not a covered benefit under the patient's insurance plan. This is one of the most impactful denial codes because it can apply to any service type — procedures, DME, prescriptions, or supplies — and the financial consequences vary significantly depending on whether the Group Code is PR or CO.

When paired with PR, the patient bears the financial burden. The payer has decided the service was not part of the patient's benefits, and the provider may bill the patient directly. When paired with CO, the provider absorbs the cost because contractual obligations prevent passing the charge to the patient. This distinction matters enormously for revenue recovery strategy.

Before assuming the service is genuinely non-covered, investigate coding accuracy. A surprising number of CARC 204 denials stem from incorrect CPT, HCPCS, or ICD-10 codes that make a covered service look non-covered. Missing authorization numbers and expired pre-certifications are also common triggers. Only after ruling out these fixable issues should the denial be treated as a true coverage exclusion.

Common Causes

Cause	Frequency
Service excluded from the patient's benefit plan The procedure, drug, or equipment billed is explicitly excluded from coverage under the patient's current insurance policy	Most Common
Missing or expired prior authorization Required pre-authorization was not obtained before rendering the service, causing the payer to deny coverage entirely	Most Common
Maximum benefit limit reached The patient has exhausted their annual or lifetime benefit limit for the type of service being billed	Common
Out-of-network provider The provider does not have a coverage arrangement with the patient's insurance plan and the plan does not cover out-of-network services	Common
Coding errors misrepresenting the service Incorrect CPT, HCPCS, or ICD-10 codes caused a covered service to appear as a non-covered service to the payer	Common
Lack of medical necessity documentation The payer determined that insufficient documentation was provided to justify the medical necessity of the service, drug, or equipment	Occasional

How to Resolve

Determine whether the denial is due to a claim error or a genuine coverage exclusion, then either correct and resubmit or appeal with supporting documentation.

Rule out claim errors Before passing the cost to the patient, verify all codes and authorization status. If a coding error caused the denial, fix it and resubmit — the service may actually be covered.
Check for ABN/waiver If the service was known to be non-covered before rendering, confirm you have a signed Advance Beneficiary Notice (ABN) or financial responsibility waiver from the patient.
Appeal if medically necessary If the service is essential for patient care, gather medical necessity documentation and file an appeal with the payer. The denial may be overturned on medical grounds.
Bill the patient If the service is genuinely non-covered and all appeal options are exhausted, issue the patient statement for the full charge amount.

Common RARC Pairings

The RARC code tells you exactly what triggered the PR-204:

RARC	Description
N130	Consult plan benefit documents or contact the payer for coverage information. Check the patient's specific plan documents →
N386	This decision was based on a National Coverage Determination (NCD) or Local Coverage Determination (LCD). Review the applicable NCD/LCD →

How to Prevent PR-204

Verify patient benefits for the specific service before rendering it
Obtain a signed ABN for any service that may not be covered
Confirm prior authorization requirements and obtain them before the appointment
Educate patients about their plan's coverage limitations at scheduling

General Prevention

Verify patient benefits and coverage for the specific service before rendering it
Obtain and document prior authorization for all services that require it
Inform patients about non-covered services and obtain an Advance Beneficiary Notice (ABN) before providing them
Double-check all procedure and diagnosis codes before claim submission

Also Filed As

The same CARC 204 may appear with different Group Codes:

CO-204 OA-204

Related Denial Codes

PR-26 — Expenses Incurred Prior to Coverage PR-27 — Expenses Incurred After Coverage Terminated PR-32 — Patient Not Eligible as Dependent PR-33 — Insured Has No Dependent Coverage PR-34 — No Newborn Coverage

Sources

https://www.mdclarity.com/denial-code/204
https://denialcode.com/204
https://etactics.com/blog/denial-code-pr-204
Codes maintained by X12. Visit x12.org for official definitions.