D7949 — LeFort II or LeFort III — with bone graft
D7949 is that same midface osteotomy with bone grafting, normally needed where the advancement is large.
There are ten codes for orthognathic surgery and they are not interchangeable. This page covers this one; the orthognathic surgery guide covers the treatment they all share.
What the number specifies, what it costs, what your plan is likely to do with it, and the named differences between it and the codes around it — in that order.
D7949 compared with its closest relatives
D7948 — LeFort II or LeFort III — without bone graft: It is the same procedure with one word changed: without rather than with.
D7947 — LeFort I (maxilla — segmented): It is the LeFort I done in segments, so that the width and the arch form can be altered as well as the position.
D7946 — LeFort I (maxilla — total): It is the LeFort I osteotomy, which frees the whole upper jaw in one piece and repositions it.
D7945 — Osteotomy — body of mandible: It cuts through the body of the lower jaw, forward of the ramus, in order to reposition it.
D7949 sits in a group of ten codes in total; the remainder are linked at the foot of this page. Because the wording of these codes is so close, substituting one for another is a routine cause of rejected claims and of unexpected balances. If D7949 is on your estimate, it is worth confirming that the detail it specifies matches what is actually planned.
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 |
|---|---|
| D7949 | LeFort II or LeFort III — with bone graft — this page |
| D7940 | Osteoplasty — for orthognathic deformities |
| D7941 | Osteotomy — mandibular rami |
| D7943 | Osteotomy — mandibular rami with bone graft |
| D7944 | Osteotomy — segmented or subapical |
| D7945 | Osteotomy — body of mandible |
| D7946 | LeFort I (maxilla — total) |
| D7947 | LeFort I (maxilla — segmented) |
| D7948 | LeFort II or LeFort III — without bone graft |
| D7991 | Coronoidectomy |
Questions about D7949
D7949 — what is it?
Read literally, D7949 means leFort II or LeFort III, with bone graft — and payers do read it literally.
Is D7949 expensive?
Typically $9,000–$28,000 before insurance, depending on local fees and the complexity of the individual case.
Does dental insurance cover D7949?
Usually yes, as medical treatment at variable — but coverage turns on your own policy, its annual maximum and any waiting period.
What is the difference between D7949 and D7948?
D7948 is leFort II or LeFort III, without bone graft: it is the same procedure with one word changed: without rather than with. Everything else about the appointment is identical, so the record has to show that one detail for D7949 to be the defensible code.
Also known as: jaw surgery, orthognathic surgery, LeFort osteotomy, underbite surgery, bite correction surgery.