N640Remark Code (RARC)Active
N640 Remark Code - Service Frequency Exceeded
The N640 remark code indicates that the claim exceeds the number or frequency of services approved or allowed within a specific time period. This code supplements an adjustment already noted by an accompanying reason code, providing further clarification on the limitation imposed by the payer.
How It Relates to the Denial
This remark typically accompanies adjustment reason codes that relate to service frequency limits or maximum allowable units. The combination signals that the billed services have surpassed what is permitted under the payer's guidelines for the specified timeframe.
Common Scenarios
1A provider submits a claim for physical therapy services, having billed for 15 sessions in a single month. The remittance advises that only 10 sessions are allowed within that timeframe.
→ The N640 remark code points to the fact that the number of sessions billed exceeds the allowable limit set by the payer for that month.
2A patient receives multiple imaging studies within a short span, and the claim is submitted for all of them. The payer responds with an adjustment indicating that only a limited number of studies are covered per quarter.
→ The N640 code clarifies that the total number of imaging studies billed has surpassed the frequency allowed by the payer during that quarter.
3A claim for a series of vaccinations is submitted, but the remittance indicates a denial for the excess number of doses given within the approved period.
→ The appearance of the N640 remark code suggests that the total doses administered exceed the payer's established frequency limits for vaccinations.
What to Do
- Review the number of services billed against the payer's policy on service frequency limits.
- Consider adjusting the claim to align with the allowed number of services within the specified time period.
- If applicable, communicate with the patient about the denial and potential coverage limitations.
What to Check
- The payer's policy documents regarding service frequency limits.
- The specific claim details, including dates of service and units billed.
- Any previous authorizations or approvals related to the number of services provided.