D3352 — Apexification — interim medication replacement
D3352 is each visit in between, where the medication in the canal is washed out and replaced while the barrier forms.
four codes describe apexification and pulpal regeneration, and this is one of them. What separates it from the other three is the subject of this page; the apexification and pulpal regeneration guide covers the treatment itself.
This page sets out the conditions the code carries, what practices charge for it, how a plan is likely to assess it, and the named difference between it and each of its neighbours.
The conditions built into D3352
Status — interim, not definitive. It is built to function for a limited period while something else is planned or healing, and many plans fold its fee into the definitive restoration if that follows within a few months.
D3352 against the codes beside it
D3351 — Apexification — initial visit: It is the definitive version.
D3353 — Apexification — final visit: It is the definitive version.
D3355 — Pulpal regeneration — initial visit: It is the definitive version.
Those three codes and D3352 are the whole group — nothing else describes this procedure. The safest question to ask is not "what does this cost" but "which code is going on the claim". The first answer changes; the second decides the first.
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 |
|---|---|
| D3352 | Apexification — interim medication replacement — this page |
| D3351 | Apexification — initial visit |
| D3353 | Apexification — final visit |
| D3355 | Pulpal regeneration — initial visit |
Questions about D3352
D3352 — what is it?
On a claim, D3352 tells the insurer that what was performed was apexification, interim medication replacement.
Is D3352 expensive?
Typically $150–$400 before insurance, depending on local fees and the complexity of the individual case.
Does dental insurance cover D3352?
It is generally a covered benefit in the basic / major category, typically 50–80%. Frequency limits and waiting periods are the usual reasons a claim is refused.
What is the difference between D3352 and D3351?
D3351 is apexification, initial visit: it is the definitive version. Nothing else separates them, which is exactly why a claim submitted under the wrong one of the two is such a common correction.
Also known as: apexification, open apex, immature tooth, pulpal regeneration, revascularisation.