PR-122: Psychiatric Services Reduction

What Does PR-122 Mean?

PR-122 shifts the psychiatric service reduction to the patient. This typically occurs when the patient's plan has a limit on psychiatric services — a maximum number of visits or dollar cap — and that limit has been exhausted. The patient is financially responsible for the remaining balance. This is a legitimate patient obligation under the plan terms.

CARC 122 indicates that the payer has reduced payment for psychiatric or mental health services. This code is specific to behavioral health claims and signals that the payer applied a reduction based on plan terms, regulatory requirements, or documentation deficiencies related to the psychiatric care provided.

The most common scenario triggering CARC 122 under CO is the Medicare sequestration — a 2% automatic payment reduction applied to all Medicare Part B claims, including psychiatric services. This reduction is mandated by federal budget legislation and is non-appealable. Providers must simply absorb the 2% as a contractual adjustment. Beyond sequestration, CO-122 can also fire when the payer reduces payment due to incomplete clinical documentation, missing pre-authorization, or coding errors that prevent the payer from validating the psychiatric services billed.

Under PR, the code appears when the patient has exhausted their psychiatric benefit limits — many commercial plans cap the number of mental health visits or the dollar amount covered for behavioral health services within a plan year. Once the cap is reached, additional charges shift to the patient. The group code distinction is critical: CO means the provider writes off the difference, while PR means the patient owes the balance. Always check the RARC codes accompanying CARC 122 for specific guidance on the reduction reason.

Common Causes

How to Resolve

Determine whether the reduction is a standard contractual adjustment or a correctable error, then write off or appeal accordingly.

1. Verify the benefit limit with the payer Confirm the patient's psychiatric service limit and verify it has been correctly applied to this claim.
2. Transfer to patient responsibility Move the balance to the patient's account and generate a statement explaining the psychiatric coverage limitation.
3. Contact the patient and arrange payment Notify the patient that their mental health benefit limit has been reached and discuss payment options for the outstanding balance.

How to Prevent PR-122

• Check psychiatric benefit limits at every visit to identify when the patient is approaching their coverage cap
• Educate patients about their plan's mental health coverage limits during the intake process
• Collect estimated patient responsibility upfront when benefit limits are approaching exhaustion

General Prevention

• Check patient's psychiatric benefit limits and remaining coverage at each visit to identify when limits are approaching
• Educate patients about their plan's mental health coverage limits during intake so they understand their potential financial responsibility
• Collect estimated patient-responsibility amounts upfront when benefit limits are near exhaustion

Also Filed As

The same CARC 122 may appear with different Group Codes:

Related Denial Codes