What D4341 means

D4341 covers scaling and root planing (SRP) for four or more teeth in a single quadrant of the mouth. "D" is dental, "43" is the periodontal treatment group, and "41" is the four-or-more-teeth SRP. People often call it a "deep cleaning," but clinically it's a therapeutic procedure for diagnosed gum disease, not the preventive cleaning done on healthy mouths.

It works below the gumline. Under local anesthesia, the clinician removes plaque and hardened tartar from the tooth roots in the pocket, then smooths (planes) the root surfaces so the gum can reattach and heal. The mouth is divided into four quadrants, and treatment is reported one quadrant at a time.

The key partner code is D4342, which is the same procedure but for only one to three teeth in a quadrant. Picking between them comes down to how many teeth in that quadrant truly need treatment. SRP is also distinct from a routine cleaning (D1110) and from periodontal maintenance (D4910), and mixing these up is a common cause of denials.

When it's typically used

D4341 is reported when four or more teeth in a quadrant have active periodontal disease — typically documented with deeper pockets (often 4-5mm or more), bone loss on X-rays, and bleeding on probing — and need therapeutic deep cleaning rather than a routine prophylaxis.

How much does D4341 cost?

Scaling and root planing is billed per quadrant, often roughly 200 to 400 USD per quadrant depending on region and office. Treating all four quadrants therefore adds up, and it's commonly done over more than one visit.

Is D4341 covered by insurance?

Plans cover SRP as a basic or major service only when periodontal disease is documented — usually requiring perio charting, X-rays showing bone loss, and a diagnosis. Frequency is often limited to once per quadrant every 24 to 36 months, and more than two quadrants on one day frequently triggers a request for records.

Frequently asked questions

What is the D4341 dental code?

It's periodontal scaling and root planing ("deep cleaning") for four or more teeth in one quadrant — a therapeutic treatment for active gum disease, billed per quadrant.

What's the difference between D4341 and a regular cleaning?

A regular cleaning (D1110) is preventive, for healthy mouths above the gumline. D4341 is therapeutic, treating diagnosed gum disease below the gumline with root planing.

How much does D4341 deep cleaning cost?

Often around 200 to 400 USD per quadrant depending on location and office. Treating all four quadrants multiplies that, usually across more than one visit.

What's the difference between D4341 and D4342?

Both are SRP. D4341 is for four or more teeth in a quadrant; D4342 is for one to three teeth in a quadrant.

Does insurance cover D4341?

Usually only with documented periodontal disease — perio charting, bone loss on X-rays, and a diagnosis. Frequency is often limited to once per quadrant every 24 to 36 months.

Why was my deep cleaning denied?

Common reasons include missing perio charting or X-rays, pocket depths that don't meet the plan's threshold, or billing it when the visit was really a routine cleaning or maintenance.

This page is an independent, plain-language explanation for general information only. It is not billing, coding, or clinical advice. For the official CDT descriptor and current-year wording, refer to the American Dental Association.