D7220 Dental Code: Soft Tissue Impaction Removal Billing Guide

What D7220 covers

D7220 reports the removal of an impacted tooth whose occlusal surface is covered by soft tissue. The tooth has not fully erupted, gum tissue overlies the biting surface, and the dentist elevates a mucoperiosteal flap to access and deliver it. It is the least involved of the impaction codes because no bone removal is required to expose the crown.

Most D7220 cases are third molars (wisdom teeth), though the code applies to any soft tissue impaction.

It does not cover:

• A fully erupted tooth that needs a flap, bone removal, or sectioning. That is D7210, the surgical extraction of an erupted tooth.
• An impaction where bone covers part of the crown and bone removal is required. That is D7230.
• An impaction where the crown is essentially encased in bone. That is D7240, or D7241 when there are unusual surgical complications.
• A simple extraction of an erupted tooth or exposed root by elevation or forceps. That is D7140.

The defining fact is soft tissue coverage of the occlusal surface, with flap access and no bone removal.

How the impaction codes are distinguished

The four impaction codes are not a difficulty ladder. They are separated by what covers the tooth, established at the procedure and recorded in the operative note.

• D7220 soft tissue: the occlusal surface is under gum tissue. Flap, no bone removal.
• D7230 partially bony: part of the crown is under bone. Flap plus bone removal.
• D7240 completely bony: the crown is essentially encased in bone. Flap plus more extensive bone removal.
• D7241 completely bony with unusual surgical complications: atypical anatomy, deep nerve involvement, or other documented difficulty beyond the standard completely bony case.

D7220 sits at the bottom of that range, which is exactly why it draws scrutiny in both directions. The note has to show enough to support an impaction code, but not overstate the case into a bony classification the film does not support.

When to bill D7220

Bill D7220 when:

• The tooth is impacted and its occlusal surface is covered by soft tissue.
• A flap was elevated to access the tooth.
• No bone removal was required to expose the crown.

Do not bill D7220 for:

• A fully erupted tooth needing surgical access. Use D7210.
• An impaction requiring bone removal. Use D7230 or D7240.
• A routine extraction by elevation or forceps. Use D7140.

Top reasons D7220 gets denied or downgraded

1. Downgraded to a non-impaction code. The note didn’t establish soft tissue coverage or the flap, so the carrier paid at the D7140 or D7210 allowable. The operative report is the defense.
2. Documentation missing. No radiograph showing the impaction, no description of the soft tissue coverage. The carrier cannot confirm the classification.
3. Coverage questioned on an asymptomatic case. Some plans limit benefits for asymptomatic impactions or apply the dental benefit only. This is plan language, not a clinical judgment.
4. Medical and dental confusion. On cases with a medical indication, the claim may need to go to medical first. Sending it to the wrong payer first creates rework.

Medical and dental crossover

Impaction removals sometimes cross into medical coverage. Medical plans are more likely to pay when there is a documented medical indication: symptoms, infection, an associated cyst or pathology, or interference with a planned medical procedure such as cardiac surgery, transplant preparation, or radiation therapy.

When medical is involved, it is usually billed first as primary, with dental billed secondary for any remaining benefit. The medical claim uses CPT codes; the dental claim uses the D7220 line. Whether a given soft tissue impaction qualifies for medical, and which payer is primary, is plan-dependent and should be verified before treatment planning.

Documentation that supports the claim

The claim is stronger with:

• A radiograph, often panoramic, showing the impaction and the soft tissue coverage.
• An operative note stating the occlusal surface was covered by soft tissue and a flap was elevated.
• The clinical indication, especially when seeking medical coverage.

For the patient record, document:

• The tooth number and impaction status.
• That the occlusal surface was covered by soft tissue.
• The flap elevation and that no bone removal was required.
• Any symptoms, pathology, or medical indication.

The sentence that supports the code names the coverage and the access: “Tooth 17 impacted with occlusal surface covered by soft tissue; mucoperiosteal flap elevated for access, tooth delivered without bone removal.” That framing supports D7220 and separates it from both a routine extraction and a bony impaction.

Example case

A 19-year-old established patient has tooth 32, a lower wisdom tooth whose biting surface is covered by gum tissue but not by bone. The patient reports recurrent pericoronitis. The dentist elevates a flap, removes the tooth without bone removal, and closes.

Billing steps:

1. Take a panoramic radiograph showing the soft tissue impaction.
2. Verify whether the symptoms make this a medical-primary case under the patient’s plans.
3. Code D7220 with an operative note naming the soft tissue coverage and the flap.
4. Attach the film. If a medical indication applies, bill medical first and dental secondary.
5. If the carrier downgrades, appeal with the operative report documenting the impaction and access.

What to get right in your PMS

1. Match the code to the coverage, not the effort. Soft tissue over the occlusal surface with flap access is D7220, regardless of how routine or difficult the case felt.
2. Document the soft tissue coverage and the flap in the operative note. Without it, the carrier downgrades to a non-impaction code.
3. Check medical eligibility before treatment on symptomatic cases. Billing the wrong payer first creates rework.
4. Attach the radiograph to the claim. The film supports the impaction classification.