What D4273 means

D4273 covers a subepithelial connective tissue graft procedure. "D" is dental, "42" is the periodontal surgery group, and "73" is this connective tissue graft. It treats gum recession, where the gum has pulled back and exposed root surface, by taking connective tissue from beneath the surface layer of the palate and tucking it under the gum at the recession site to cover the root.

This technique is widely regarded as the gold standard for root coverage because the graft gets blood supply from both the underlying tissue and the flap placed over it, which improves survival and gives a natural look. It addresses sensitivity, root decay risk, and the appearance of "long" teeth.

It's one of several soft-tissue graft codes. A free gingival graft (a different code) takes a thicker surface layer of palate tissue and is used more to thicken gum than to cover roots. A pedicle graft (D4270) moves nearby gum tissue rather than taking it from the palate. The right code reflects the specific technique used.

When it's typically used

D4273 is reported when a connective tissue graft is performed to cover exposed roots from gum recession, improve a thin gumline, or address root sensitivity and appearance, using tissue harvested from beneath the palate's surface.

How much does D4273 cost?

A connective tissue graft is a moderate-to-high surgical fee, often roughly 600 to 1,200 USD per site depending on region and the number of teeth treated. Treating several adjacent teeth in one graft can affect the total.

Is D4273 covered by insurance?

Coverage varies; some plans cover gum grafts under periodontal benefits when recession is causing functional problems (sensitivity, root decay, progressing recession) rather than purely cosmetic concerns. Documentation of the recession and its effects, with charting and photos, supports the claim.

What causes gum recession, and when do you need a graft?

Gum recession has several causes, and not every case needs surgery. Understanding why it's happening helps you and your dentist decide whether a graft is the right move.

Common causes include aggressive or hard brushing, gum disease, genetics (thin gum tissue), tooth grinding, and the position of teeth in the arch. Mild recession that's stable and not causing problems is often just monitored. A graft becomes worth considering when recession is getting worse over time, when exposed roots are sensitive or developing decay, or when the recession threatens the long-term health of the tooth.

Appearance matters to some patients too — receding gums can make teeth look unusually long. But most insurance-covered cases hinge on the functional problems (sensitivity, decay risk, progression) rather than looks alone.

Connective tissue graft vs free gingival graft vs pinhole

There are a few different ways to treat recession, and they're not interchangeable — each suits different situations.

A connective tissue graft (D4273) takes tissue from under the surface of the palate and is the go-to for covering exposed roots with a natural appearance. A free gingival graft takes a thicker surface layer of palate tissue and is used more to thicken thin gum and create durable attached tissue than to cover roots, though it can leave a slightly less seamless color match. The pinhole technique is a newer, less invasive approach that loosens and repositions existing gum through a tiny hole without taking tissue from the palate, but it isn't suitable for every case.

Your periodontist recommends a technique based on how much root is exposed, how thick your existing gum is, and how many teeth are involved.

Recovery and aftercare for a gum graft

Gum graft recovery is usually manageable, but the palate donor site (when tissue is taken from the roof of the mouth) is often the part patients notice most in the first week.

Expect some swelling and tenderness at both the graft site and the donor site for several days. You'll typically be asked to eat soft, cool foods, avoid chewing on the treated area, and skip brushing the graft directly until it's healed enough — your dentist gives specific timing. The donor area on the palate usually feels like a pizza burn and settles within a week or two.

Full healing and the final tissue result take longer to mature, often several weeks to months. Avoiding smoking and following the rinse and hygiene instructions closely make a real difference to how well the graft takes.

Does a gum graft last, and can recession come back?

A successful gum graft is generally long-lasting, but it doesn't make the tooth immune to future recession if the original cause isn't addressed.

Once healed, the grafted tissue becomes a stable, thicker band of gum that resists further recession and covers the previously exposed root. Many grafts last for decades. However, if the underlying cause — aggressive brushing, grinding, or untreated gum disease — continues, recession can develop again over time.

The best way to protect the result is to fix what caused the recession: switching to a soft brush and gentle technique, wearing a night guard if you grind, and keeping up with periodontal maintenance. Your dentist will monitor the site at recall visits to catch any change early.

Frequently asked questions

What is the D4273 dental code?

It's a subepithelial connective tissue graft — a gum graft that covers exposed tooth roots from recession using tissue taken from beneath the palate's surface.

Is a connective tissue graft the best option for receding gums?

It's widely considered the gold standard for root coverage because the graft gets a strong blood supply and gives a natural look, though the best technique depends on your case.

How much does a D4273 gum graft cost?

Often around 600 to 1,200 USD per site depending on location and how many teeth are treated.

Does insurance cover gum grafts?

Sometimes, when recession causes functional problems like sensitivity, root decay, or progression — rather than purely cosmetic concerns. Documentation helps.

Is a gum graft painful?

It's done under local anesthesia, so the procedure itself isn't painful. The palate donor site is usually the most noticeable part during the first week of recovery.

How is D4273 different from a free gingival graft?

D4273 takes tissue from under the palate surface for root coverage. A free gingival graft takes a thicker surface layer, used more to thicken thin gum.

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.