Scaling and root planing when there are one to three teeth per quadrant with periodontal disease.
Get help with D4342 claims →When only one to three teeth in a quadrant have clinical attachment loss, pocket depths of 4mm or greater, and radiographic bone loss.
Some quadrants may have a mix of healthy sites and diseased sites, with only a few teeth requiring SRP.
These are the denial reasons we see most often for D4342. Each one is preventable with proper documentation.
If perio charting doesn't show pockets of 4mm+ on the teeth billed, the claim is denied. Full-mouth probing depths must be documented.
Prophylaxis and SRP on the same date is a contradiction. A patient either needs a cleaning or needs SRP, not both.
D4341 is for four or more teeth per quadrant. D4342 is for one to three teeth. Using the wrong code triggers a denial.
Six-point probing depths for all teeth, recorded before treatment.
List the specific teeth that received SRP in each quadrant.
Radiographs showing bone loss around the affected teeth.
Document BOP at the affected sites.
The code is determined by how many teeth in the quadrant have periodontal disease. D4342 is for one to three teeth per quadrant. D4341 is for four or more teeth per quadrant. Count only the teeth with clinical evidence of periodontal disease (pocketing, attachment loss, bone loss), not all teeth in the quadrant.
If a quadrant has six teeth but only two of them have 5mm+ pockets with bone loss, the correct code is D4342. If five of the six teeth are involved, the correct code is D4341. Inaccurate tooth counts are a leading cause of SRP claim denials.
SRP claims require more documentation than most dental procedures. At minimum, payers expect: full-mouth probing depths (six points per tooth), radiographs showing bone loss, a periodontal diagnosis, and identification of the specific teeth treated in each quadrant. Without all of these elements, claims are routinely denied or downgraded to a prophylaxis fee.
Our team handles D4342 billing daily. We know the denial patterns, documentation requirements, and appeal strategies that get claims paid.
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