D5140 is the CDT code for an immediate complete denture for the lower (mandibular) arch — a full lower denture fabricated in advance and inserted the same day the remaining natural teeth are extracted, so the patient is never without teeth. It's distinct from the conventional mandibular denture (D5120), which is delivered after the arch heals.
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 D5140 Code
Report D5140 when a lower denture is delivered on the same day the patient's remaining mandibular teeth are removed. Because the denture is made before extraction, it is placed immediately so the patient leaves with teeth in place during healing.
Pick the code by timing and arch: D5140 is the immediate lower denture; D5130 is the immediate upper (maxillary) denture; D5120 is a conventional lower denture delivered after the ridge has healed. The published descriptor for D5140 generally includes limited immediate follow-up care but does not include future rebasing or relining — those are reported separately as the ridge remodels.
Documentation & Clinical Scenarios
Immediate dentures are reviewed prosthetic benefits, so the chart should connect the extractions to the same-day prosthesis:
- Arch (mandibular) and the teeth extracted at the immediate-insertion appointment.
- Insertion date matching the extraction date, since "immediate" is defined by same-day placement.
- Clinical notes on the impression, fabrication, and delivery, plus the included limited post-insertion follow-up.
- A note that future relines/rebases are anticipated and will be billed separately (e.g., D5751, D5711), since the lower ridge changes shape as it heals.
Insurance & Billing Tips
- Verify benefits and frequency first. Immediate dentures carry the same replacement frequency limits as conventional complete dentures (often once every 5–7 years per arch).
- Know what's bundled. The immediate denture generally includes limited follow-up care; later relines and rebases are separate and not part of the D5140 fee.
- Extractions are billed separately. Surgical or simple extractions performed the same day are their own codes — D5140 does not cover removing the teeth.
- Confirm the date rule. Most plans tie the immediate-denture benefit to the same-day insertion date.
- Pre-authorize when in doubt. A pre-estimate confirms coverage and the patient portion before the surgical appointment.
Example Case
A 64-year-old patient has failing lower teeth and wants to avoid being without teeth while the ridge heals. The dentist plans an immediate mandibular denture. The office verifies benefits and confirms the frequency limit is clear. At the surgical visit the remaining lower teeth are extracted and the pre-made denture is inserted the same day. The complete denture is filed as D5140 with that insertion date, while the extractions are billed under their own codes. A reline is anticipated months later and will be reported separately. Because benefits were verified and the bundling was understood up front, the claim is paid as expected.
Patients call about "same-day lower dentures," not D5140. DentalReception AI answers and books those calls 24/7, captures insurance details for clean intake, and routes clinical and billing questions to your team. See denture calls, or book a demo.
Frequently Asked Questions
What's the difference between D5140 and D5120?
Timing. D5140 is an immediate lower denture inserted the same day the remaining teeth are extracted, while D5120 is a conventional lower denture delivered after the arch has healed. Both are complete mandibular dentures, but the immediate version is placed during the surgical visit and typically needs a reline or rebase later as the ridge remodels — so code by whether teeth were removed that day.
Does D5140 include relines and the extractions?
No to both, with a nuance. The immediate denture generally includes limited immediate follow-up care, but later relines and rebases are separate procedures with their own codes. The extractions performed the same day are also billed under their own surgical codes — D5140 covers only the denture, not removing the teeth.
How often will insurance pay for an immediate lower denture?
Immediate complete dentures typically fall under the same replacement frequency limit as conventional complete dentures, commonly once every five to seven years per arch, sometimes with a waiting period on new plans. Verify the specific frequency and any missing-tooth clause before treatment so the patient understands future replacement coverage.
Do I need a pre-authorization for a D5140 denture?
Many plans recommend or require a pre-estimate for immediate dentures. Submitting one confirms the frequency limit is clear, clarifies that later relines and rebases will be billed separately, and establishes the patient's out-of-pocket portion — letting you quote an accurate estimate before the surgical appointment.
Confirm the current CDT descriptor and your specific payer policies before billing — browse the full dental code library or see our insurance verification feature.