What D7810 means

D7810 covers the open reduction of a dislocation (of the temporomandibular joint, TMJ). "D" is dental, "78" is this oral surgery (TMJ/dislocation) group, and "10" is this open reduction of dislocation. The temporomandibular joint (TMJ) is the jaw joint — where the mandibular condyle (the top of the lower jaw bone) meets the skull (the temporal bone), allowing the jaw to open, close, and move. A dislocation of the TMJ is when the condyle comes out of its normal position in the joint — most commonly, the condyle moves forward (anteriorly) out of the joint socket and gets stuck there, so the jaw is 'locked' in an open position and can't close (an acute dislocation). 'Reduction' of a dislocation means repositioning the dislocated joint back into its normal position. D7810 is the OPEN reduction — repositioning the dislocation via a surgical opening (surgical access to the TMJ). This contrasts with closed reduction (D7820), where the dislocation is repositioned by manipulation without a surgical opening. So D7810 is the surgical (open) repositioning of a dislocated jaw joint.

So it's surgically accessing the jaw joint to reposition a dislocation back into place — the open reduction approach, used when closed manipulation isn't sufficient.

Most acute TMJ dislocations are reduced closed (D7820) — by manipulation (the provider repositions the jaw back into the joint manually, without surgery). Open reduction (D7810) is needed in less common situations where closed reduction isn't sufficient — for example, a dislocation that can't be reduced by manipulation (an irreducible dislocation), a long-standing (chronic) dislocation that has become fixed and can't be repositioned closed, or certain complex situations — requiring surgical access to the joint to reposition the condyle. It's performed by an oral and maxillofacial surgeon, typically under anesthesia. This code is in the TMJ/dislocation group (D7810-D7899), which also includes closed reduction of dislocation (D7820), manipulation under anesthesia (D7830), and various TMJ surgeries. TMJ-related coverage varies (some plans limit TMJ treatment); for a traumatic/acute dislocation, medical or dental coverage may apply. Documentation of the dislocation and the open reduction supports the claim.

When it's typically used

D7810 is reported for the open reduction of a TMJ (jaw joint) dislocation — surgically accessing the joint to reposition a dislocated condyle back into place. It's used for dislocations that require surgical access to reduce (e.g., an irreducible or long-standing/chronic dislocation that can't be repositioned by closed manipulation). Most acute dislocations are reduced closed (D7820); D7810 is for those needing surgical reduction.

How much does D7810 cost?

Open reduction of a TMJ dislocation (surgical) is more involved than closed reduction — the cost varies with the situation (some fee schedules list a modest allowance for the reduction code itself, e.g., around 140 USD, but the actual surgical care — with the surgical access, anesthesia, and facility — is greater). It's more than closed reduction (D7820). Coverage varies (TMJ treatment is limited by some plans; a traumatic dislocation may have medical/dental coverage). Verify your specific coverage.

Is D7810 covered by insurance?

Coverage for TMJ-related procedures varies — some dental plans limit or exclude TMJ treatment, and a dislocation (especially traumatic/acute) may involve medical coverage. Documentation of the dislocation (the TMJ dislocation, and why open reduction was needed — e.g., irreducible or chronic) and the open reduction (the surgical access, repositioning) supports the claim. It's distinguished from closed reduction (D7820) and manipulation under anesthesia (D7830). Coordination with the insurer (checking TMJ coverage) applies. Verifying coverage helps.

What a TMJ dislocation is

A TMJ dislocation is the jaw joint coming out of place, and understanding it clarifies the code.

Understanding what a TMJ dislocation is clarifies D7810. The temporomandibular joint (TMJ) is the jaw joint — where the mandibular condyle (the rounded top of the lower jaw bone) sits in a socket (the glenoid fossa) of the temporal bone of the skull, allowing the jaw to open, close, and move (for chewing, speaking, etc.). A TMJ dislocation is when the condyle comes out of its normal position in the joint. The most common form is an anterior dislocation: the condyle moves too far forward (anteriorly) — beyond a bony prominence (the articular eminence) — and gets stuck in front of it, so it can't slide back into the socket. When this happens, the jaw is 'locked' in an open position — the person can't close their mouth (the jaw is stuck open), which is distressing and uncomfortable.

This can happen from wide opening (e.g., a wide yawn, a long dental procedure, taking a big bite), sometimes with predisposing factors (lax ligaments, prior dislocations — some people have recurrent dislocations). A dislocation differs from a subluxation (a partial, self-reducing dislocation) — a full dislocation is stuck and needs reduction (repositioning). So a TMJ dislocation is the jaw joint coming out of place (commonly the jaw locked open), needing repositioning. Understanding this helps patients see that a TMJ dislocation is when the jaw joint comes out of its normal position — the temporomandibular joint (where the mandibular condyle sits in a socket of the skull, allowing the jaw to move) dislocating, most commonly an anterior dislocation (the condyle moving too far forward, beyond the articular eminence, and getting stuck there) so the jaw is 'locked' open and can't close — which can happen from wide opening (a wide yawn, a long dental procedure, a big bite), sometimes with predisposing factors (lax ligaments, recurrent dislocations) — needing reduction (repositioning the joint back into place), as opposed to a subluxation (a partial, self-reducing dislocation).

Open vs closed reduction of a dislocation

Open and closed reduction differ by surgical access, and understanding this clarifies the code.

Reducing a TMJ dislocation means repositioning the dislocated condyle back into its normal position in the joint — and there are two approaches: closed reduction (D7820) — repositioning by manipulation, without a surgical opening: the provider manually manipulates the jaw (e.g., pressing down and back on the lower jaw in a specific way) to guide the condyle back into the socket — no surgical exposure of the joint; and open reduction (D7810) — repositioning via a surgical opening (surgical access to the TMJ): the surgeon surgically accesses the joint to reposition the condyle. So the difference is whether the joint is accessed surgically (open) or repositioned by external manipulation (closed).

Most acute TMJ dislocations are reduced closed (D7820) — manual manipulation is usually successful for a fresh dislocation (sometimes needing sedation/anesthesia to relax the muscles, which may involve manipulation under anesthesia, D7830). Open reduction (D7810) is reserved for the less common cases where closed reduction isn't sufficient (next section). So open and closed reduction differ by the surgical access. Understanding this helps patients see that reducing a TMJ dislocation (repositioning the dislocated condyle back into the joint) can be done two ways — closed reduction (D7820), repositioning by manipulation without a surgical opening (the provider manually manipulating the jaw to guide the condyle back into the socket), or open reduction (D7810), repositioning via a surgical opening (surgically accessing the joint to reposition the condyle) — so the difference is whether the joint is accessed surgically (open) or repositioned by external manipulation (closed), with most acute dislocations reduced closed (manual manipulation usually succeeding for a fresh dislocation, sometimes with sedation/anesthesia) and open reduction reserved for the less common cases where closed reduction isn't sufficient.

When open reduction is needed

Open reduction is for dislocations that can't be reduced closed, and understanding this clarifies its use.

Open reduction (D7810) is needed for the less common TMJ dislocations that can't be reduced by closed manipulation — and understanding when clarifies its use. Situations that may require open reduction: an irreducible dislocation — a dislocation that can't be repositioned by manipulation (even with anesthesia/muscle relaxation) — e.g., if something is mechanically blocking the reduction, or the dislocation is otherwise resistant; a long-standing (chronic) dislocation — a dislocation that has been present for a prolonged time (not promptly reduced) and has become fixed — over time, the tissues around the displaced condyle can tighten/scar, making closed reduction impossible, so surgical access is needed to reposition it; and certain complex situations — e.g., associated injuries or anatomical factors requiring surgical management.

In these cases, the surgeon surgically accesses the joint (a surgical opening to the TMJ) to reposition the condyle back into place — when external manipulation can't achieve it. (For recurrent dislocations — repeatedly dislocating — other surgical procedures may be considered to prevent recurrence, which is a separate matter from reducing an acute dislocation.) So open reduction is for dislocations needing surgical access to reduce. Understanding this helps patients see that open reduction (D7810) is needed for the less common TMJ dislocations that can't be reduced by closed manipulation — an irreducible dislocation (that can't be repositioned by manipulation even with anesthesia, e.g., if something mechanically blocks it), a long-standing (chronic) dislocation (present for a prolonged time and become fixed, as the tissues around the displaced condyle tighten/scar, making closed reduction impossible), or certain complex situations — so the surgeon surgically accesses the joint to reposition the condyle when external manipulation can't achieve it (with recurrent dislocations potentially needing other preventive surgical procedures, a separate matter from reducing an acute dislocation).

The TMJ procedure group

D7810 is part of the TMJ/dislocation group, and understanding this clarifies the coding.

D7810 is part of the TMJ (temporomandibular joint) procedure group — and understanding this clarifies the coding. This group of codes (around D7810-D7899) covers the reduction of dislocation and the management of TMJ dysfunctions, including: D7810 — open reduction of dislocation (this code); D7820 — closed reduction of dislocation (repositioning by manipulation, no surgical exposure); D7830 — manipulation under anesthesia (manipulating the jaw under anesthesia, e.g., to reduce a dislocation or for other TMJ purposes); and various TMJ surgeries (e.g., procedures on the joint's structures — the disc, the synovium, the bone — and joint procedures like arthrotomy, arthroplasty, arthrocentesis). So the group covers the range of TMJ interventions, from reducing a dislocation to TMJ surgery.

D7810 specifically is the open (surgical) reduction of a dislocation. The surgeon codes it when a dislocation requires surgical access to reduce (vs D7820 for a closed reduction, or D7830 if manipulation under anesthesia is done). This is the start of the TMJ section, distinct from the fracture codes (D7610-D7780) covered before it. So D7810 is the open reduction of dislocation within the TMJ group. Understanding this helps patients see that D7810 is part of the TMJ (temporomandibular joint) procedure group (around D7810-D7899) — which covers the reduction of dislocation and the management of TMJ dysfunctions, including D7810 (open reduction of dislocation, this code), D7820 (closed reduction of dislocation, by manipulation), D7830 (manipulation under anesthesia), and various TMJ surgeries (on the disc, synovium, bone, and the joint — arthrotomy, arthroplasty, arthrocentesis) — so D7810 specifically is the open (surgical) reduction of a dislocation, coded when a dislocation requires surgical access to reduce (vs D7820 for closed reduction or D7830 for manipulation under anesthesia), at the start of the TMJ section (distinct from the fracture codes D7610-D7780).

Frequently asked questions

What is the D7810 dental code?

It's the open reduction of a temporomandibular joint (TMJ) dislocation — surgically repositioning a dislocated jaw joint back into place via a surgical opening (surgical access to the TMJ). A TMJ dislocation is when the jaw's condyle comes out of the joint (e.g., the jaw 'locks' open). 'Open reduction' means surgical access is used (vs closed reduction, D7820).

What is a TMJ dislocation?

When the jaw joint comes out of its normal position — most commonly the condyle (the top of the lower jaw) moves too far forward and gets stuck, so the jaw is 'locked' open and can't close. It can happen from wide opening (a wide yawn, a long dental procedure, a big bite), sometimes with predisposing factors (lax ligaments, recurrent dislocations).

How is it different from closed reduction (D7820)?

Open reduction (D7810) repositions the dislocation via a surgical opening (surgically accessing the joint). Closed reduction (D7820) repositions it by manipulation, without a surgical opening (the provider manually guiding the condyle back into the socket). Most acute dislocations are reduced closed; open reduction is for those needing surgical access.

When is open reduction needed?

For the less common dislocations that can't be reduced by closed manipulation — an irreducible dislocation (resistant to manipulation, e.g., if something mechanically blocks it), a long-standing (chronic) dislocation (present for a prolonged time and become fixed, as the tissues tighten/scar), or certain complex situations requiring surgical access to reposition the condyle.

Aren't most jaw dislocations fixed without surgery?

Yes — most acute TMJ dislocations are reduced closed (D7820), by manual manipulation (sometimes with sedation/anesthesia to relax the muscles). Open reduction (D7810) is reserved for the less common cases where closed manipulation isn't sufficient (an irreducible or chronic dislocation).

What insurance applies?

Coverage for TMJ-related procedures varies — some dental plans limit or exclude TMJ treatment, and a dislocation (especially traumatic/acute) may involve medical coverage. The cost varies with the surgical situation. Verify your specific coverage (checking any TMJ limitations) with your plan.

This page is an independent, plain-language explanation for general information only. It is not billing, coding, or clinical advice. For the official CDT descriptor and current-year wording, refer to the American Dental Association.