D2931 is the CDT code for a prefabricated stainless steel crown placed on a permanent tooth — a pre-formed metal crown that gives a permanent tooth full-coverage protection, often as a durable interim restoration. It's reported per tooth and is specific to permanent teeth.
Informational only — confirm the official CDT descriptor and your payers' rules independently. This is general guidance, not billing, coding, or clinical advice.
When to Use the D2931 Code
Report D2931 when a permanent tooth is restored with a prefabricated stainless steel crown. It's used most often in pediatric dentistry for young permanent molars, but can also apply to adults when a permanent tooth needs durable full coverage as an interim restoration — for example, after a pulpotomy or pulpectomy, with extensive caries, with developmental defects, or while a tooth is being monitored before a definitive custom crown.
Pick the code by tooth type: D2931 is for a permanent tooth, while D2930 is the same prefabricated stainless steel crown on a primary tooth. It's also distinct from definitive lab-fabricated crowns such as all-ceramic (D2740) or porcelain-fused-to-metal (D2750). If a custom crown is the final restoration, that custom code applies — D2931 covers the prefabricated stainless steel crown actually placed.
Documentation & Clinical Scenarios
Because a stainless steel crown on a permanent tooth is frequently an interim measure, the chart should make the rationale clear:
- Tooth number (permanent tooth) and the reason full coverage was needed (extensive decay, fracture, post-pulp therapy, developmental defect).
- A note on intent — whether the crown is interim while the tooth is monitored, or a longer-term solution for the patient's situation.
- Pre-operative radiograph(s) documenting the condition of the tooth.
- A narrative explaining why a prefabricated crown — rather than a filling or a definitive custom crown — was the appropriate choice now.
Any associated pulp therapy (such as a pulpotomy) is a separate procedure with its own code and is documented and billed separately from the crown.
Insurance & Billing Tips
- Verify benefits and tooth eligibility. Coverage for a stainless steel crown on a permanent tooth varies more than on a primary tooth, so confirm the plan pays for it on the specific tooth.
- Clarify interim vs. definitive intent. Some plans treat the stainless steel crown as interim and may apply its allowance toward a later definitive crown — know this before quoting the patient.
- Check frequency and replacement rules. A later definitive crown on the same tooth may be subject to the plan's crown frequency limit.
- Bill associated pulp therapy separately. Don't bundle a pulpotomy or pulpectomy into the crown code.
- Document a pre-operative radiograph. Payers commonly want a film supporting the need for full coverage.
Example Case
A 9-year-old fractures a young permanent first molar with deep decay. The dentist performs pulp therapy and places a prefabricated stainless steel crown to protect the tooth while it continues to develop, planning a definitive crown in the future. The office bills the pulp therapy under its own code and reports the crown as D2931 with the tooth number, a note that it is interim, and a pre-operative radiograph attached. Because benefits were verified and the documentation explained the interim rationale, the claim is paid as expected.
Patients call about "getting a crown" — not D2931. DentalReception AI answers and books those calls 24/7, captures insurance details, and routes clinical/billing questions to your team. See crown calls, or book a demo.
Frequently Asked Questions
What's the difference between D2931 and D2930?
Tooth type. D2931 is a prefabricated stainless steel crown on a permanent tooth, while D2930 is the same crown on a primary (baby) tooth. The crown and technique are similar; the codes differ by which tooth was treated, and plans may cover them under different rules. Code by the actual tooth that received the crown.
Is D2931 a permanent restoration or a temporary one?
It can be either, depending on the clinical situation. On young permanent molars it's frequently an interim restoration placed while the tooth develops, with a definitive custom crown planned later. In some adult cases it serves as a longer-term solution. Document the intent in the chart, because some plans treat the stainless steel crown as interim and may apply its allowance toward a future definitive crown.
Will insurance cover a stainless steel crown on a permanent tooth?
Coverage varies more than for primary teeth. Some plans cover D2931 readily, others limit it by tooth, age, or interim-vs-definitive status. Verify benefits and tooth eligibility before treatment, and check whether the allowance will be applied toward a later definitive crown so you can give the patient an accurate estimate.
Do I need a pre-authorization for D2931?
A pre-estimate is worth obtaining because coverage rules on permanent teeth differ between plans. Many payers want a pre-operative radiograph and a narrative explaining why full coverage was needed and whether the crown is interim. Getting the pre-estimate back before treatment lets you set accurate patient expectations and reduces the chance of a denial or down-coding surprise.
Confirm the current CDT descriptor and your specific payer policies before billing — browse the full dental code library or see our insurance verification feature.