Frequency limit reached: what it means and what to do
The plan pays for this service only so many times in a period, such as two cleanings a year or one set of bitewing X-rays a year, and its records show the limit was already used.
- “Exceeds frequency limitation”
- “Frequency limit met”
- “Allowed once every six months”
What to check first
- Which dates the plan counted. The claims history on the portal shows them, including visits at other offices.
- How the plan counts: by calendar year, by benefit year, every so many months, or in any 12 months.
- Whether an earlier visit was coded as this service by mistake.
What to do
If the count is wrong, appeal with the claims history. If the limit was truly reached, the plan won't pay and the patient owes the fee; tell them before the visit next time.
Stop it next time
Check the claims history and the next eligible date before booking.
Next steps
- Appeal letter: denied under a frequency limit
- Free tool: next eligible date checker
- Billing guide: cleanings
Insurers word these differently, and many print a numbered reason code too. Read the words on the explanation of benefits; they say which of these it is.
Sources
Read November 11, 2026. Where a source describes one insurer's plans, we say so.
Get the patient's share in dollars, from the benefits page
Most denials can be seen coming on the benefits page. Tabruns reads the coverage, deductible, yearly maximum, waiting periods and frequency limits from the insurer's portal and works out what the patient owes. Patient details stay on the office computer.
Not ready? Try the free patient portion calculator.
Other denials
- Yearly maximum reached
- Waiting period not met
- Not a covered benefit
- Alternate benefit applied
- Included in another procedure
- More information needed
- Patient not covered on the date of service
- Other insurance information needed
- Filed after the deadline
- Missing tooth clause
- Not supported by the records
- Replacement too soon
- Applied to deductible