CDT Code for Zygomatic Implant Surgical Placement Is D7994

The CDT code for zygomatic implant surgical placement is D7994, surgical placement: zygomatic implant. It lives in the oral and maxillofacial surgery section of CDT, not the implant services section, which is exactly why a biller hunting through the D6000s never finds it. Report one unit per implant placed. Everything else on the case, the abutments, the prosthesis, any grafting, the anesthesia, goes on its own line with its own code. Coding it right and getting it paid are two separate problems, and the second one is the hard one.

D7994 has a neighbor worth knowing. D7993 is surgical placement of craniofacial implant, extra oral, the anchorage that retains an orbital or auricular prosthesis. A zygomatic implant is placed through the mouth and engages the zygomatic bone. One digit apart, and not interchangeable.

What is the CDT code for surgical implant placement?

There is no single answer, and assuming there is one is the most common coding error on an implant claim. CDT divides placement by the type of implant body.

The per implant rule has teeth. A quad zygoma case is four units of D7994, and a hybrid case with two zygomatic implants posteriorly and two conventional implants anteriorly is two units of D7994 plus two units of D6010. Payers frequently bundle repeat units billed on one date of service, so attach the operative report and use the arch or area designation that payer's claim edits expect.

And do not substitute D6010 because a payer's system recognizes it and chokes on D7994. That is not a workaround, it is a misrepresentation of the procedure performed, and it surfaces in a records audit later.

What a full zygomatic case looks like on the claim

A zygomatic case is rarely one line. Here is the shape of a typical full arch maxillary case, which is useful as a checklist even when your case differs.

Run one negative check before submission. Zygomatic implants are often chosen precisely to avoid sinus grafting, so sinus augmentation codes, D7951 for the lateral open approach and D7952 for the vertical approach, usually should not appear on the same case. If they do, the clinical record has to support them, because a reviewer will ask.

What does the CDT code D6190 represent?

D6190 is radiographic/surgical implant index, by report. It describes an appliance fabricated to relate the planned implant or osteotomy position to the patient's existing anatomy, used during radiographic exposure for planning, during osteotomy creation, or both. That also answers the question practices actually type into search: the CDT code for a surgical guide for implant placement is D6190, not a prosthetic code and not a laboratory invoice line.

Three operational points. By report means the narrative is not optional: say what was fabricated and whether it was used radiographically, surgically, or both. Many plans treat the guide as part of the global surgical fee and pay nothing separately, which varies by plan and has to be verified on the policy in front of you. And if the case was planned with dynamic navigation and no physical index was made, D6190 does not apply. No appliance, no code.

What does the CDT code D5875 represent?

D5875 is modification of removable prosthesis following implant surgery. The patient arrives with a complete or partial denture, implants are placed, and the prosthesis is relieved, adjusted or converted so it can be worn during healing. Report it once per prosthesis modified, ordinarily on the surgical date.

It is not a reline, which belongs to the D5730 through D5761 range, and it is not a repair. Attachment assemblies are reported separately rather than folded into D5875. On zygomatic cases this line is earned constantly and billed rarely, because the conversion happens chairside in the surgical appointment and never makes it onto the day sheet the coder works from.

What is CDT code D2952 used for?

D2952 is post and core in addition to crown, indirectly fabricated, where the post and core are custom made as a single unit, typically cast in the laboratory, for an endodontically treated natural tooth. D2954 is the prefabricated equivalent.

It appears in implant coding searches for one reason: people look for the code covering "the post that goes into the implant." There is no post and core on an implant. The component that carries the restoration is an abutment, and the codes are D6056 for a prefabricated abutment including placement and D6057 for a custom fabricated abutment including placement. Reporting D2952 against an implant site produces a denial in the best case and a records request in the worst, and it corrupts your own production reporting along the way. The broader CDT and CPT boundary question comes up constantly on surgical cases, and our guide to the differences between CDT and CPT codes in dentistry works through it.

Who actually pays for a zygomatic case

Correct coding does not create coverage. Dental plan annual maximums are commonly quoted in the 1,000 to 2,000 dollar range, and a zygomatic reconstruction will exhaust that on the first line or two. Treat the dental plan as a partial contributor and plan the rest.

Whether implants are covered at all is a plan design choice made by the employer group, so it varies plan to plan even within the same carrier and must be verified on the specific policy. Ask five questions during verification and record the answers with the reference number and date: are implant services a covered benefit, is D7994 recognized by this plan, does a missing tooth clause apply, what waiting period remains, and what replacement or frequency limits attach to implant services. Then send a predetermination rather than relying on the verbal. Our walkthrough on how to submit a dental pre-authorization for implants covers what to include so the response is usable.

On the medical side, zygomatic placement is often pursued as a reconstructive procedure when there is a documented medical indication rather than a purely restorative one. Diagnosis coding matters more than it does on a dental claim.

Procedure coding on the medical claim is where practices stall. Reconstruction of the maxilla with an endosteal implant has its own CPT family, partial and complete, and there is an unlisted craniofacial and maxillofacial procedure code for work that does not fit. Which one a medical payer accepts for zygomatic placement varies, so ask before submission and get the answer in writing. As of this writing, medical plans generally want the medical indication documented, tumor resection, trauma, congenital defect, or atrophy severe enough that a conventional prosthesis cannot function, and prior authorization rules change, so confirm the current requirement with the plan. Our guide to billing medical insurance for dental bone grafts and implants covers the crossover mechanics.

When it comes back denied

Sort the denial before you write anything. A flat implant exclusion in the plan document is not appealable, and that conversation belongs with the patient, not the payer. A missing tooth clause denial is contractual too. Neither improves with a stronger narrative.

What does respond to appeal: repeat units of D7994 bundled down to one, which the operative report usually resolves; D6190 denied for no narrative, which is a resubmission with the report attached; a medical necessity denial where the atrophy documentation and imaging were never sent; and a predetermination that came back on different terms than the verbal verification, where your dated reference number is the argument. Our breakdown of why a dental implant claim gets denied maps reason codes to the response that works.

Curo assembles these claims from the clinical record, carries the attachments and by report narratives with the lines that require them, and flags a bundled or underpaid line against what the predetermination promised. You can see how that works on claims automation.

The habit that saves the most money on these cases is small. Before the surgical date, write out the line list, code by code, against the planned procedure, and mark each line with what the plan said in writing. A zygomatic case that gets coded from the day sheet after the fact loses a guide line, a denture conversion line and an implant unit almost every time, and none of them come back.