PR-223: Mandated Federal/State/Local Law Adjustment

What Does PR-223 Mean?

PR-223 shifts regulatory-mandated costs to the patient. This occurs when a state or federal law requires the patient to bear a specific portion of the cost that is not captured by other CARC codes — such as state-mandated surcharges, regulatory cost-sharing requirements, or legislated patient contribution rules. This pairing is uncommon but can appear in states with specific patient cost-sharing regulations.

CARC 223 serves as a placeholder adjustment code for situations where a federal, state, or local law or regulation mandates a claim adjustment but no existing CARC code specifically covers that regulation. When a new regulatory mandate takes effect and affects claim payments, CARC 223 is used until a dedicated code is created by the X12 code committee. This makes CARC 223 inherently vague — the code itself tells you only that a regulation is involved, not which regulation or why.

Because of this ambiguity, the accompanying remark codes (RARCs) and the 835 remittance segments are critical for understanding what happened. Without reading these, you are essentially guessing at the basis of the adjustment. Common scenarios that trigger CARC 223 include state-mandated fee schedule reductions, new regulatory reporting requirements that affect payment, government program-specific payment rules, and retroactive regulatory changes that require claim adjustments.

CARC 223 appears most frequently with Group Code CO (contractual obligation) when the regulatory mandate creates a payment reduction the provider must absorb. It can also appear with PR when the regulation shifts costs to the patient, or with OA in government program-specific scenarios. The resolution depends entirely on identifying the underlying regulation — if the regulation was correctly applied, you accept the adjustment; if it was misapplied or does not apply to your services, you have grounds for appeal.

Common Causes

How to Resolve

Identify the specific regulation cited in the remark codes and 835 segments, then determine whether the adjustment was correctly applied to your claim.

1. Identify the patient cost-sharing regulation Review the remark codes to determine which regulation requires the patient to pay this amount. Verify the regulation applies to the patient's coverage type and the services rendered.
2. Bill the patient with explanation Transfer the PR-223 amount to the patient's account and send a statement that references the regulatory requirement. Provide clear language explaining why the patient owes this amount.
3. Appeal if the regulation was misapplied If the patient cost-sharing regulation does not apply to this service or patient, file an appeal with documentation of the applicable regulatory text.

Common RARC Pairings

The RARC code tells you exactly what triggered the PR-223:

How to Prevent PR-223

• Include regulatory-mandated patient costs in upfront cost estimates before services are rendered
• Inform patients about state-specific cost-sharing requirements during registration

General Prevention

• Inform patients about state-mandated cost-sharing requirements at the time of service
• Include regulatory-mandated patient costs in upfront cost estimates

Also Filed As

The same CARC 223 may appear with different Group Codes:

Related Denial Codes