Scaling and root planing and insurance
Why deep cleaning claims are denied more than most, the pocket depths and charting insurers ask for, and how plans count quadrants.
Scaling and root planing, the deep cleaning for gum disease, is usually a basic service. The ADA says these claims tend to be denied more often than other procedures, nearly always over documentation.
What insurers look for
- Pocket depths. The ADA notes that some carriers require at least 4mm pockets on the treated teeth. Without them, the visit may be paid as a regular cleaning.
- Charting and X-rays. For more than two quadrants in one visit, the ADA suggests sending full-mouth perio charting, a full-mouth X-ray series, the diagnosis and the treatment plan.
- The right count of teeth. Plans pay a full quadrant and a partial quadrant differently. Bill the one the chart supports.
Typical limits
- Many plans limit how often the same quadrant is paid, often once in a period of years.
- Some plans limit how many quadrants they pay on one day.
- After treatment, follow-up visits are usually periodontal maintenance, not cleanings.
If it's denied
Read the reason on the explanation of benefits. If the records support the treatment, the ADA says it is appropriate to appeal: send the charting, X-rays and a narrative.
This is how plans usually work, not how every plan works. The patient's own plan documents and the insurer decide what's paid.
Codes you'll see
CDT is a registered trademark of the American Dental Association. Tabruns is not affiliated with or endorsed by the ADA. The descriptions here are our own plain-English summaries, not the ADA's official wording; use your current CDT manual or practice software for the official code set.
Terms on this page
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
Knowing how plans pay for deep cleaning (scaling and root planing) is half the job. 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.