D4266 — Guided tissue regeneration — resorbable membrane
D4266 places a resorbable barrier over a defect so that the body rebuilds bone there instead of soft tissue filling the space.
This is one of five closely related periodontal grafting and regeneration codes. The treatment is explained in full in the periodontal grafting and regeneration guide — this page is about what makes this particular code different.
Below you will find what this code specifically requires, a realistic price range, the usual benefit handling, and where it stops applying and another code begins.
Not to be confused with
D4267 — Guided tissue regeneration — non-resorbable membrane: It is the same procedure with one word changed: non-resorbable rather than resorbable.
D4264 — Bone graft around a natural tooth (additional site): It is the each-additional line that follows it.
D4263 — Bone graft around a natural tooth (first site): It grafts bone into the defect around a natural tooth, and is billed for the first site treated.
D4273 — Connective tissue graft (gum graft): It takes connective tissue from the palate and grafts it over an exposed root to cover recession.
Those four codes and D4266 are the whole group — nothing else describes this procedure. There is no penalty for asking which of these is planned, and there is a real cost to finding out from an explanation of benefits weeks later.
Every code in this group
These codes describe the same broad procedure and differ in one respect each. Each has its own page with its own fee range and coverage notes.
| Code | Procedure |
|---|---|
| D4266 | Guided tissue regeneration — resorbable membrane — this page |
| D4263 | Bone graft around a natural tooth (first site) |
| D4264 | Bone graft around a natural tooth (additional site) |
| D4267 | Guided tissue regeneration — non-resorbable membrane |
| D4273 | Connective tissue graft (gum graft) |
Questions about D4266
What procedure is D4266?
It is the entry for guided tissue regeneration, resorbable membrane. A practice cannot use it for anything broader than that, which is what makes the code useful to you.
What should I expect to pay for D4266?
Most private fees fall in $500–$1,400. Geography accounts for more of that spread than anything clinical.
Does dental insurance cover D4266?
Expect major periodontal handling — 0–50%. Submitting an estimate first turns that percentage into a number you can rely on.
Also known as: gum graft, bone graft, guided tissue regeneration, receding gums, connective tissue graft.