D7856 — Myotomy (TMJ-related)
D7856 releases or divides a jaw muscle, for spasm or restriction rather than for disease inside the joint.
This code belongs to a set of 22 covering temporomandibular joint treatment. The clinical detail lives in the temporomandibular joint treatment guide; the code-level detail is here.
Read on for the conditions this code carries, the money involved, the way a payer is likely to treat it, and a plain comparison against each of the codes it is easily mistaken for.
How D7856 differs from its neighbours
D7854 — Synovectomy (TMJ): It removes the inflamed lining of the joint.
D7858 — Joint reconstruction (TMJ): It rebuilds the joint, replacing damaged parts with grafts or prosthetic components.
D7852 — Disc repair (TMJ): It repairs a torn or displaced joint disc rather than removing it.
D7860 — Arthrotomy (TMJ): It opens the joint surgically in order to inspect and treat it directly.
D7856 sits in a group of 22 codes in total; the remainder are linked at the foot of this page. If an estimate lists D7856 and the treatment that follows matches a neighbouring code instead, the office has to resubmit — which delays the payment rather than increasing it.
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.
Questions about D7856
What procedure is D7856?
Myotomy, tmj-related, reported under a single oral and maxillofacial surgery code.
How much does D7856 cost?
Typically $2,000–$8,000 before insurance, depending on local fees and the complexity of the individual case.
How do dental plans handle D7856?
In most cases yes, at the medical / dental — often excluded rate: 0–50%. The annual maximum is what usually decides how much of that you actually see.
What is the difference between D7856 and D7854?
D7854 is synovectomy, TMJ: it removes the inflamed lining of the joint. One does not substitute for the other; if both are listed, ask what each appointment is actually for.
Also known as: TMJ, TMD, jaw joint pain, arthrocentesis, jaw clicking, occlusal orthotic.