D3428 — Bone graft with periradicular surgery (single site)
D3428 adds a bone graft to root-end surgery at a single site, filling the defect the infection left behind in the bone.
There are nine codes for apicoectomy and periradicular surgery and they are not interchangeable. This page covers this one; the apicoectomy and periradicular surgery guide covers the treatment they all share.
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.
What D3428 specifies
Counted — per site, and sites are counted by the surgeon's record rather than by tooth number, so the documentation drives the total.
The nearby codes and how they differ
D3427 — Periradicular surgery without apicoectomy: It is periradicular surgery in which the root tip is not cut off: the lesion is cleared and the area repaired, but the apex is left intact.
D3426 — Apicoectomy — each additional root: It is the each-additional line that follows it.
D3430 — Retrograde (root-end) filling — per root: It is counted per root rather than per site.
D3425 — Apicoectomy — molar (first root): It is counted per root rather than per site.
D3428 sits in a group of nine codes in total; the remainder are linked at the foot of this page. 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 |
|---|---|
| D3428 | Bone graft with periradicular surgery (single site) — this page |
| D3410 | Apicoectomy — anterior tooth |
| D3421 | Apicoectomy — premolar (first root) |
| D3425 | Apicoectomy — molar (first root) |
| D3426 | Apicoectomy — each additional root |
| D3427 | Periradicular surgery without apicoectomy |
| D3430 | Retrograde (root-end) filling — per root |
| D3431 | Biologic materials with periradicular surgery |
| D3432 | Guided tissue regeneration with root surgery |
Questions about D3428
What procedure is D3428?
D3428 records bone graft with periradicular surgery, single site — one of the endodontics codes.
What should I expect to pay for D3428?
Expect $400–$1,000. Ask for the number in writing, because the code carries no fee of its own and every practice sets its own.
Is D3428 a covered benefit?
It normally falls under major / surgical cover, typically 50–80%. Whether a particular claim is paid depends more on your history with the plan than on the code.
What is the difference between D3428 and D3427?
D3427 is periradicular surgery without apicoectomy: it is periradicular surgery in which the root tip is not cut off: the lesion is cleared and the area repaired, but the apex is left intact. These are not two versions of one procedure: they are separate treatments, and a plan assesses each on its own merits.
Also known as: apicoectomy, root end surgery, endodontic surgery, retrograde filling, periradicular surgery.