D4211 is the CDT code for gingivectomy or gingivoplasty involving one to three contiguous teeth per quadrant. A gingivectomy surgically removes diseased or excess gingival tissue; a gingivoplasty reshapes gingival contours. The tooth count per quadrant is the key variable that separates D4211 from its companion code D4210, which applies when four or more contiguous teeth per quadrant are involved.
Last updated June 2026 ยท Reviewed by the PracticeAlpha billing team
Get help with D4211 claims →Drug-induced gingival hyperplasia (associated with certain medications such as phenytoin, cyclosporine, or calcium channel blockers), hereditary gingival fibromatosis, or inflammatory enlargement affecting 1-3 contiguous teeth in a quadrant. Excess tissue is surgically excised.
When gingival tissue must be reduced or reshaped to facilitate proper margin placement for a crown or other restoration, and the involvement is limited to 1-3 contiguous teeth per quadrant. This is a functional indication distinct from crown lengthening involving bone (D4249).
When probing reveals increased depth due to coronal migration of the gingival margin (pseudopocket) with no apical migration of the junctional epithelium and no bone loss. Removal of the suprabony pocket wall is the clinical indication. Bone level must be normal for D4211 to apply.
Do NOT use D4211 for: Procedures involving 4 or more contiguous teeth in a quadrant (use D4210). Procedures involving osseous recontouring or bone removal (use D4249 for clinical crown lengthening, hard tissue). Crown lengthening that requires bone reduction to expose an adequate tooth structure for a crown margin. Purely cosmetic gingival reshaping where coverage is not anticipated or documented as functional.
The tooth count per quadrant controls the code selection. If the procedure involved four or more contiguous teeth in a single quadrant, D4210 is the correct code, not D4211. Submitting D4211 when the operative note documents treatment on four or more teeth in a quadrant is a coding error. Count contiguous teeth per quadrant carefully. If a patient had D4211 on one quadrant and D4210 on another, both codes can be submitted for the same date, each for their respective quadrant.
Periodontal surgical procedures commonly require pre-authorization. Many plans require written approval before a gingivectomy is performed. Submitting without prior approval can result in a denial or reduced reimbursement. Obtain and document the authorization number. If the plan requires pre-auth and it was not obtained, file an appeal explaining the clinical urgency and attach full documentation.
When the documentation does not clearly state a functional clinical indication, payers may classify D4211 as cosmetic and deny coverage. Purely aesthetic gingival reshaping with no periodontal disease diagnosis, no restorative indication, and no functional impairment is typically non-covered. The clinical notes must describe the diagnosis, such as gingival enlargement affecting hygiene, pocket elimination, or pre-restorative recontouring, not patient preference for appearance.
A periodontal chart with probing depths, bleeding on probing, and gingival margin measurements is expected for surgical perio claims. Documenting only "gum surgery" or "removed tissue" does not meet payer standards for a surgical procedure. The note should identify the affected teeth, clinical diagnosis, extent of tissue involvement, and surgical technique.
Document probing depths, gingival margin position, bleeding on probing, and furcation involvement for all affected teeth. Identify which 1-3 contiguous teeth were treated and in which quadrant. This is the foundation of the clinical justification.
State the periodontal diagnosis explicitly. Examples: drug-induced gingival enlargement, chronic inflammatory gingival hyperplasia, pseudopocket formation, or gingival overgrowth impeding restoration placement. Vague notes are the top reason surgical perio claims are downgraded or denied.
Periapical radiographs of the surgical area confirm the bone level and help establish whether a gingivectomy (soft tissue only) is appropriate. If bone loss is present, the procedure may need to be reclassified. Attach current radiographs to the claim or pre-auth request.
List the specific tooth numbers treated, the procedure performed (excision, recontouring, or both), and a brief description of the technique and findings. Confirm the tooth count: 1-3 contiguous per quadrant. If more teeth were treated in that quadrant, switch to D4210 before submitting.
Verify whether the patient's plan requires pre-auth for periodontal surgery. If required, submit the pre-auth with the periodontal chart, radiographs, and a brief clinical narrative before scheduling the procedure. Document the authorization number in the claim and patient record.
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Learn about our billing servicesD4211 is the CDT code for gingivectomy or gingivoplasty involving one to three contiguous teeth per quadrant. It is a periodontal surgical procedure in which excess or diseased gingival tissue is excised or reshaped. The tooth count per quadrant separates D4211 (1-3 teeth) from D4210 (4 or more teeth).
D4210 applies when the gingivectomy or gingivoplasty involves four or more contiguous teeth per quadrant. D4211 applies when the procedure involves one to three contiguous teeth per quadrant. Count the number of contiguous teeth treated in the affected quadrant to determine the correct code.
Yes. Gingivectomy is a periodontal surgical procedure involving incision and removal of gingival tissue. It falls under the CDT periodontal surgery category. Most dental plans classify it as a major or surgical benefit and may require pre-authorization before the procedure.
Common reasons include: treating 4 or more teeth (D4210 should be used instead); missing pre-authorization; payer classifying the procedure as cosmetic due to insufficient clinical documentation; and lack of a periodontal chart supporting the diagnosis.
Most dental plans require a functional or restorative clinical indication for coverage. Purely cosmetic reshaping is typically non-covered. The chart must document a clinical diagnosis such as gingival enlargement, pseudopocket formation, or pre-restorative need. When the indication is cosmetic, verify coverage first and have the patient acknowledge potential out-of-pocket responsibility.
Yes, when different quadrants were treated and each quadrant independently meets its respective tooth-count criterion. D4210 applies to a quadrant where 4 or more contiguous teeth were treated; D4211 applies to a different quadrant where 1-3 contiguous teeth were treated. Do not bill both codes for the same quadrant on the same date of service.
Search all 206 CDT codes in our dental coding guide.