Alveoloplasty Dental Code (D7311): One to Three Teeth

What D7311 covers

D7311 reports alveoloplasty performed in conjunction with extractions when one to three teeth or tooth spaces in a single quadrant are involved. Alveoloplasty is the surgical reshaping of the alveolar bone, the ridge that held the teeth, into a smooth and even contour. D7311 is the code when a small number of teeth come out and the ridge is left with sharp edges, an undercut, or an uneven height that would interfere with healing or the fit of a prosthesis.

Both of these have to be true:

• In conjunction with extractions. The alveoloplasty happens in the same quadrant, on the same date, as the extractions.
• One to three teeth or tooth spaces, per quadrant. The code is reported per quadrant. Four or more spaces is D7310.

It does not cover:

• The routine smoothing of socket bone done as part of the extraction itself. That is already included in the extraction code, such as D7140 (simple) or D7210 (surgical).
• Placing bone graft material to preserve the socket and ridge shape. That is a graft, not reshaping. See D7953.
• Alveoloplasty with four or more spaces, or without same-date extractions in the quadrant. See the table below.

The two axes that separate the four alveoloplasty codes

The four alveoloplasty codes differ on only two questions: whether extractions happened in the same quadrant that day, and how many teeth or tooth spaces were involved.

Code	Extractions same quadrant/date?	Teeth or spaces in quadrant
D7311	Yes	One to three
D7310	Yes	Four or more
D7321	No	One to three
D7320	No	Four or more

“Not in conjunction with extractions” (D7321, D7320) means the ridge is reshaped at a separate visit, or in a quadrant where no teeth were extracted that day, often on a ridge that healed with sharp bone or an undercut after teeth were lost earlier.

Why routine socket smoothing does not earn D7311

Most D7311 denials start here. Current CDT extraction codes include minor smoothing of socket bone, so smoothing the rough socket edges while taking a tooth out is part of the extraction, not a separate alveoloplasty.

D7311 is correct only when the bone work is significant and distinct from that routine smoothing: real recontouring of the ridge, removal of sharp bony projections, reduction of an undercut, or leveling for a prosthesis. Whether the dentist “smoothed the socket while pulling the teeth” or “performed a separate alveoloplasty” is a clinical judgment, and the chart note is what proves which one happened.

Don’t post D7311 automatically with every one-to-three-tooth extraction. Posting it reflexively is what trains a carrier to bundle every claim you send.

When to bill D7311

Bill D7311 when, in a single quadrant on the same date as extractions, the dentist performs significant alveolar bone recontouring involving one to three teeth or tooth spaces. Common situations:

• One, two, or three adjacent teeth are removed in a quadrant and the ridge needs leveling and smoothing so an immediate or future denture or partial will seat.
• The ridge is left with a sharp bony projection or a pronounced undercut after a small number of extractions, and meaningful recontouring is done to correct it.
• Pre-prosthetic bone preparation is performed at the time of the extractions on one to three spaces to produce a ridge shape the prosthesis can fit.

Alveoloplasty is reshaping, not grafting

Alveoloplasty and a ridge preservation graft are opposite operations, not interchangeable codes.

• Alveoloplasty (D7311 and its siblings) removes and reshapes bone. The ridge has too much bone, or bone in the wrong shape, and the surgeon recontours it to a usable form.
• D7953 (bone replacement graft for ridge preservation, per site) adds bone. Graft material is placed into the extraction socket to hold ridge volume for a future implant or to maintain the contour.

D7953 is reported per site, not per quadrant. A patient can have both in the same arch, so each is documented and coded on its own terms.

Top reasons D7311 gets denied or bundled

1. Documentation that does not separate the alveoloplasty from the extraction. The most common reason. A note that reads like routine socket cleanup gets D7311 folded into the extraction. The fix is a narrative describing the specific bone recontouring and why it was needed.
2. Wrong count in the quadrant. Billing D7310 (four or more) when only one to three spaces were reshaped, or the reverse. A carrier that reads the note can downgrade a mismatched code.
3. Extractions were in a different quadrant. If the reshaped quadrant had no extractions that day, the code is D7321, and billing D7311 invites a denial.
4. Prosthesis-related exclusion. Some plans fold pre-prosthetic bone preparation into the denture benefit or exclude it, so D7311 does not pay separately even when correctly performed and documented. This is a benefit limitation, not a documentation gap.
5. Third-molar alveoloplasty. Carriers commonly bundle bone contouring around a third molar, because a third molar is not replaced with a prosthesis, so the work is treated as part of the extraction.

Coverage reality: prosthesis-driven and plan-dependent

Alveoloplasty is most often done to prepare a ridge for a denture or partial, and that purpose drives how plans handle it:

• Some plans cover D7311 as oral surgery when the bone work is clearly separate from the extraction and documented as ridge preparation.
• Some fold pre-prosthetic bone preparation into the denture benefit.
• Some exclude alveoloplasty for prosthesis preparation entirely, treating it as part of the cost of the denture.

Note on the carrier record which of these applies so the team quotes the patient correctly. A D7311 denial can be a documentation problem or a true plan exclusion, so read the EOB language before appealing. Supplementing documentation on a bundling denial is often worth it; appealing a genuine benefit exclusion is not.

Documentation that supports the claim

The chart note should capture:

• The quadrant and the count. Which quadrant, and how many teeth or tooth spaces were involved (one to three for D7311). This anchors the code choice against D7310.
• The extractions performed in that quadrant on that date. This establishes D7311 rather than D7321.
• The bone work itself, specifically. Not “smoothed bone,” but what was recontoured and how: a sharp bony projection removed, an undercut reduced, the ridge leveled.
• Why it was needed. Usually preparation for a denture or partial, or correction of an irregular ridge that would interfere with healing or prosthesis fit.
• Imaging when available. Before-and-after intraoral images make the case for a distinct procedure far stronger than the narrative alone.

On the claim, attach a short narrative to the D7311 line itself, not just the patient record, restating the quadrant, the count, the same-date extractions, and the specific bone recontouring.

Example case

A 58-year-old patient has three failing teeth in the upper right quadrant (teeth #3, #4, and #5) planned for removal ahead of a partial denture. The dentist extracts all three, then finds a sharp bony projection and an undercut on the buccal ridge that would interfere with the partial. The dentist recontours the ridge with a surgical handpiece, smooths and levels the bone, and documents the work with a before-and-after image.

Billing steps:

1. At treatment planning, verify whether the plan covers alveoloplasty separately, folds it into the partial denture benefit, or excludes it, and quote the patient in writing.
2. Code the extractions on their own lines (D7140 or D7210 as the technique supports).
3. Code D7311 for the ridge recontouring: three spaces in one quadrant, with same-date extractions.
4. Attach a narrative to the D7311 line describing the quadrant, the three same-date extractions, and the specific bone work (sharp projection removed, undercut reduced, ridge leveled for the partial), plus the before-and-after image.
5. If D7311 is bundled, supplement with the operative note and image. If it is a stated exclusion, the balance is patient responsibility per the estimate already given.