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. 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, D7311 is the code for recontouring that bone.

Two facts in the descriptor decide whether D7311 is the right code, and both have to be true.

• In conjunction with extractions. The alveoloplasty happens in the same quadrant, on the same date, as the extractions. If no teeth were extracted in that quadrant during the procedure, this is not a D7311 case.
• One to three teeth or tooth spaces, per quadrant. The count is teeth or tooth spaces in the quadrant, and the code is reported per quadrant. Four or more spaces is a different code (D7310).

It does not cover:

• Alveoloplasty with extractions on four or more teeth or tooth spaces in the quadrant. That is D7310.
• Alveoloplasty not in conjunction with extractions on one to three teeth or spaces. That is D7321.
• Alveoloplasty not in conjunction with extractions on four or more teeth or spaces. That is D7320.
• 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.

The two axes that separate the four alveoloplasty codes

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

Axis 1: in conjunction with extractions, or not.

• In conjunction with extractions (D7311, D7310): the alveoloplasty is done in the same quadrant and on the same date as the extractions.
• Not in conjunction with extractions (D7321, D7320): 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.

Axis 2: how many teeth or tooth spaces in the quadrant.

• One to three teeth or tooth spaces: D7311 (with extractions) or D7321 (without).
• Four or more teeth or tooth spaces: D7310 (with extractions) or D7320 (without).

Put together:

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

Why routine socket smoothing does not earn D7311

This is where most D7311 denials start. Current CDT extraction codes include minor smoothing of socket bone as part of the extraction itself. When you take a tooth out and smooth the rough socket edges, that cleanup 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, leveling for a prosthesis. The line between “smoothed the socket while pulling the teeth” and “performed a separate alveoloplasty” is a clinical judgment, and the chart note is what proves which one happened.

When to bill D7311

Bill D7311 when, in a single quadrant on the same date as extractions, you perform 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.

Do not bill D7311 for:

• Routine smoothing of socket bone done as part of the extraction itself. That is included in the extraction code, such as D7140 or D7210.
• Four or more teeth or tooth spaces in the quadrant. Use D7310.
• Alveoloplasty done at a separate visit or in a quadrant with no same-date extractions. Use D7321 (one to three) or D7320 (four or more).
• Placing bone graft material to preserve ridge volume. That is D7953, reported per site, not per quadrant.

Alveoloplasty is reshaping, not grafting

A frequent mix-up is between alveoloplasty and a ridge preservation graft. They are opposite operations and they are 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 down 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.

One reduces bone, the other builds it. D7953 is reported per site, not per quadrant, which is another reason not to swap them. 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. The extraction code already includes minor socket smoothing, so a note that reads like routine cleanup gets the D7311 folded in. 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 vice versa. The count is per quadrant, and a carrier that reads the note can downgrade a mismatched code.
3. Extractions were in a different quadrant. D7311 requires same-date extractions in the same quadrant as the alveoloplasty. If the reshaped quadrant had no extractions that day, the correct code is D7321 (not in conjunction with extractions), and billing D7311 invites a denial.
4. Prosthesis-related exclusion. On some plans, pre-prosthetic bone preparation is folded into the denture benefit or excluded outright, 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. Bone contouring around a third molar is commonly bundled by carriers, because a third molar is not replaced with a prosthesis, so the work is treated as part of the extraction rather than a separate benefit.

Coverage reality: prosthesis-driven and plan-dependent

Alveoloplasty is most often performed to prepare a ridge for a denture or partial, and that clinical 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 plans fold pre-prosthetic bone preparation into the denture benefit, so the alveoloplasty does not pay separately even when correctly performed.
• Some plans exclude alveoloplasty for prosthesis preparation entirely, treating it as part of the cost of getting the denture.

A D7311 denial can mean two very different things: a documentation problem (the note did not separate the alveoloplasty from the extraction) or a true plan exclusion (the plan does not cover ridge preparation, or covers it only inside the denture benefit). Read the EOB language before you appeal. Appealing a genuine benefit exclusion wastes effort. Supplementing documentation on a bundling denial is often worth it.

Documentation that supports the claim

The chart note is what separates D7311 from a routine extraction in a reviewer’s eyes. It 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 the in-conjunction-with-extractions basis for 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. This is the line that distinguishes a separate alveoloplasty from the socket smoothing already included in the extraction.
• Why it was needed. The clinical reason, 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.

For the claim, a short narrative restating the quadrant, the count, the same-date extractions, and the specific bone recontouring gives the carrier what it needs to process D7311 against the right benefit instead of bundling it on sight.

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. Verify at treatment planning whether the plan covers alveoloplasty separately, folds it into the partial denture benefit, or excludes it, and quote the patient accordingly in writing.
2. Code the extractions on their own lines (D7140 or D7210 as the technique supports).
3. Code D7311 for the ridge recontouring, since the quadrant involved one to three spaces (three) 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. Read the EOB. 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 you already gave.

What to get right in your PMS

The menus differ across Open Dental, Dentrix, Eaglesoft, Curve, and Carestream, but the setup that prevents problems is the same:

1. Keep all four alveoloplasty codes distinct in your code table. D7311, D7310, D7320, and D7321 differ on only two axes (extractions or not, one-to-three or four-plus). One fuzzy “alveoloplasty” entry is how the wrong code gets posted. Label each clearly.
2. Post per quadrant, with the quadrant indicated and the count checked. These are per-quadrant codes. Confirm one to three spaces before choosing D7311 over D7310.
3. Attach the narrative to the claim, not just the patient record. The bundling defense lives in the narrative. Many systems store notes at the patient level by default, and the clearinghouse needs the alveoloplasty narrative linked to the D7311 line.
4. Flag whether the plan covers ridge preparation separately. Note on the carrier record whether D7311 pays as oral surgery, folds into the denture benefit, or is excluded, so the team quotes the patient correctly before the procedure.
5. Do not auto-post D7311 alongside every one-to-three-tooth extraction. It belongs only when significant, separate bone recontouring was actually performed and documented. Posting it reflexively with extractions is what trains a carrier to bundle every claim you send.