# Core buildup claim narrative builder and templates — D2950 > What should a core buildup (D2950) claim narrative include? Payer-checked scenario templates, the published criteria behind them, and a builder that assembles a narrative from your charted findings. URL: https://dentovio.com/dental-claim-narratives/d2950-core-buildup Last verified: 2026-08-30 Dentovio is an independent publisher — not a dental payer, the ADA, X12, or any government agency. This page was drafted with AI assistance and verified against the primary sources linked here. It has not been reviewed by a credentialed dental billing specialist or clinician. The templates and the builder assemble sentences from entries you make; they do not generate clinical content, and they state only what you record. The payer criteria shown are those payers' published documentation rules as read on the last-verified date; individual plan contracts still control coverage, frequencies, and exclusions, and payers revise policy documents on their own schedules. Educational billing reference only, not billing, legal, or clinical advice. CDT codes are referenced by number only; CDT codes and descriptors are the property of the American Dental Association. This page provides educational billing guidance only and does not reproduce ADA copyrighted descriptors. ## Direct answer A core buildup narrative should identify the tooth, state the decay or fracture that removed the tooth structure, state how much structure is gone and how much sound dentin remains after preparation, state that the buildup was necessary to retain the final restoration, and name the pre-operative and post-operative images on file. Cigna's REST-06 allows D2950 when decay or fracture makes the buildup necessary to retain the final restoration and disallows it on the same tooth and date as delivery of the final restoration, except that same-day CAD-CAM restorations may be considered, and disallows it alongside a post-and-core. Guardian ties the benefit to a covered crown or bridge unit with less than 3 mm of sound dentin remaining circumferentially after preparation. Delta Dental Ins. asks for a periapical radiograph, photographs taken within one year, and a narrative, and states that D2950 is not for material used to fill or smooth preparation geometry. Aetna asks for imagery from both before and after the buildup. ## Published thresholds, payer by payer | Payer | Published threshold | | --- | --- | | Aetna | No numeric threshold published; the documentation rules are listed on the criteria page | | Cigna | Decay or fracture must leave the final restoration needing the buildup for retention | | Delta Dental (Delta Dental Ins. enterprise) | No numeric threshold published; the documentation rules are listed on the criteria page | | Guardian | Substantial structural loss, including less than 3 mm of sound dentin remaining circumferentially after preparation | ## Scenario templates ### Core buildup narrative example - decay, crown delivered at a separate visit The straightforward case: substantial decay, walls gone, and the crown seated at a later appointment. ``` EXAMPLE - NOT A PATIENT RECORD. The findings below are a Dentovio sample written to show the shape of a narrative. No clinician charted them and no patient was examined. Do not submit this document; build your own from what your chart documents. EXAMPLE - NOT A PATIENT RECORD - CLAIM NARRATIVE - CORE BUILDUP, TOOTH #19 Patient: [PATIENT NAME] - DOB: [DATE OF BIRTH] - Member ID: [MEMBER ID] Date of service: [DATE OF SERVICE] Treating provider: [PROVIDER NAME, CREDENTIALS] - NPI: [NPI] Tooth #19 has lost natural tooth structure to decay; 50% or more of the natural tooth structure is decayed or missing. The tooth is vital. A pre-operative periapical radiograph is on file and submitted with this claim. A post-operative radiograph showing the completed buildup is on file and submitted with this claim. A core buildup (D2950) was placed on tooth #19 in preparation for a crown delivered at a separate visit. 2 axial walls were missing after caries removal and preparation. Sound dentin remaining circumferentially after preparation: less than 3 mm. The buildup was necessary to retain the final restoration. No post-and-core service was reported on this tooth on this date of service. Attachments: pre-operative periapical radiograph (dated); post-operative radiograph (dated). EXAMPLE - NOT A PATIENT RECORD. No clinician charted the findings above. Replace every one of them with what your own chart documents before anything goes to a payer. ``` Remarks-line variant (232 characters, including the EXAMPLE marker): ``` EXAMPLE - NOT A PATIENT RECORD - D2950 #19 for crown, separate visit; decay, >=50% structure loss; <3mm dentin after prep; buildup necessary to retain the final restoration; no post/core same DOS. Pre-op PA + post-op x-ray attached. ``` Before you use this, your chart must show: - the Universal tooth number of the tooth built up - the final restoration the buildup supports, and its delivery date - the decay or fracture that removed the tooth structure - whether the tooth is vital or endodontically treated - how much natural tooth structure is decayed or missing - a chart entry recording that the buildup was necessary to retain the final restoration - the sound dentin remaining circumferentially after preparation, where measured - the number of axial walls missing after preparation - a pre-operative image of the tooth - a post-operative image showing the completed buildup in place Satisfies the published criteria of: Aetna; Cigna; Guardian. Criteria met is not coverage; the plan contract controls. ### Core buildup narrative example - fracture with less than 3 mm of sound dentin A fracture case documented against Guardian's dentin threshold, with photographs at both stages. ``` EXAMPLE - NOT A PATIENT RECORD. The findings below are a Dentovio sample written to show the shape of a narrative. No clinician charted them and no patient was examined. Do not submit this document; build your own from what your chart documents. EXAMPLE - NOT A PATIENT RECORD - CLAIM NARRATIVE - CORE BUILDUP, TOOTH #30 Patient: [PATIENT NAME] - DOB: [DATE OF BIRTH] - Member ID: [MEMBER ID] Date of service: [DATE OF SERVICE] Treating provider: [PROVIDER NAME, CREDENTIALS] - NPI: [NPI] Tooth #30 has lost natural tooth structure to fracture; 50% or more of the natural tooth structure is decayed or missing. The tooth is vital. A pre-operative periapical radiograph and a pre-operative photograph are on file and submitted with this claim. A post-operative radiograph and a post-operative photograph showing the completed buildup are on file and submitted with this claim. The photographs were taken within the past 12 months. A core buildup (D2950) was placed on tooth #30 in preparation for a crown delivered at a separate visit. 3 axial walls were missing after caries removal and preparation. Sound dentin remaining circumferentially after preparation: less than 3 mm. The buildup was necessary to retain the final restoration. No post-and-core service was reported on this tooth on this date of service. Attachments: pre-operative periapical radiograph and photograph (dated); post-operative radiograph and photograph showing the buildup in place (dated). EXAMPLE - NOT A PATIENT RECORD. No clinician charted the findings above. Replace every one of them with what your own chart documents before anything goes to a payer. ``` Remarks-line variant (241 characters, including the EXAMPLE marker): ``` EXAMPLE - NOT A PATIENT RECORD - D2950 #30 for crown, separate visit; fx, >=50% structure loss; <3mm dentin after prep; buildup necessary to retain the final restoration; no post/core same DOS. Pre-op PA+photo + post-op x-ray+photo attached. ``` Before you use this, your chart must show: - the Universal tooth number of the tooth built up - the final restoration the buildup supports, and its delivery date - the decay or fracture that removed the tooth structure - whether the tooth is vital or endodontically treated - how much natural tooth structure is decayed or missing - a chart entry recording that the buildup was necessary to retain the final restoration - the sound dentin remaining circumferentially after preparation, where measured - the number of axial walls missing after preparation - a pre-operative image of the tooth - a post-operative image showing the completed buildup in place - the date the photographs were taken Satisfies the published criteria of: Aetna; Cigna; Delta Dental (Delta Dental Ins. enterprise); Guardian. Criteria met is not coverage; the plan contract controls. ### Core buildup narrative example - endodontically treated tooth, no post and core A root-treated tooth built up without a post, so the same-date post-and-core exclusion is stated on the record. ``` EXAMPLE - NOT A PATIENT RECORD. The findings below are a Dentovio sample written to show the shape of a narrative. No clinician charted them and no patient was examined. Do not submit this document; build your own from what your chart documents. EXAMPLE - NOT A PATIENT RECORD - CLAIM NARRATIVE - CORE BUILDUP, TOOTH #3 Patient: [PATIENT NAME] - DOB: [DATE OF BIRTH] - Member ID: [MEMBER ID] Date of service: [DATE OF SERVICE] Treating provider: [PROVIDER NAME, CREDENTIALS] - NPI: [NPI] Tooth #3 has lost natural tooth structure to decay and fracture; 50% or more of the natural tooth structure is decayed or missing. The tooth is endodontically treated. A pre-operative periapical radiograph is on file and submitted with this claim. A post-operative radiograph showing the completed buildup is on file and submitted with this claim. A core buildup (D2950) was placed on tooth #3 in preparation for a crown delivered at a separate visit. 2 axial walls were missing after caries removal and preparation. Sound dentin remaining circumferentially after preparation: less than 3 mm. The buildup was necessary to retain the final restoration. No post-and-core service was reported on this tooth on this date of service. Attachments: pre-operative periapical radiograph (dated); post-operative radiograph (dated). EXAMPLE - NOT A PATIENT RECORD. No clinician charted the findings above. Replace every one of them with what your own chart documents before anything goes to a payer. ``` Remarks-line variant (238 characters, including the EXAMPLE marker): ``` EXAMPLE - NOT A PATIENT RECORD - D2950 #3 for crown, separate visit; decay and fx, >=50% structure loss; <3mm dentin after prep; buildup necessary to retain the final restoration; no post/core same DOS. Pre-op PA + post-op x-ray attached. ``` Before you use this, your chart must show: - the Universal tooth number of the tooth built up - the final restoration the buildup supports, and its delivery date - the decay or fracture that removed the tooth structure - whether the tooth is vital or endodontically treated - how much natural tooth structure is decayed or missing - a chart entry recording that the buildup was necessary to retain the final restoration - the sound dentin remaining circumferentially after preparation, where measured - the number of axial walls missing after preparation - a pre-operative image of the tooth - a post-operative image showing the completed buildup in place Satisfies the published criteria of: Aetna; Cigna; Guardian. Criteria met is not coverage; the plan contract controls. ### Core buildup narrative example - same-day CAD-CAM crown, the one published exception The single same-day path Cigna publishes; a same-day conventional crown is excluded by the same rule. ``` EXAMPLE - NOT A PATIENT RECORD. The findings below are a Dentovio sample written to show the shape of a narrative. No clinician charted them and no patient was examined. Do not submit this document; build your own from what your chart documents. EXAMPLE - NOT A PATIENT RECORD - CLAIM NARRATIVE - CORE BUILDUP, TOOTH #14 Patient: [PATIENT NAME] - DOB: [DATE OF BIRTH] - Member ID: [MEMBER ID] Date of service: [DATE OF SERVICE] Treating provider: [PROVIDER NAME, CREDENTIALS] - NPI: [NPI] Tooth #14 has lost natural tooth structure to decay; 50% or more of the natural tooth structure is decayed or missing. The tooth is vital. A pre-operative periapical radiograph is on file and submitted with this claim. A post-operative photograph showing the completed buildup is on file and submitted with this claim. The photographs were taken within the past 12 months. A core buildup (D2950) was placed on tooth #14 in preparation for a same-day CAD-CAM crown. 2 axial walls were missing after caries removal and preparation. Sound dentin remaining circumferentially after preparation: less than 3 mm. The buildup was necessary to retain the final restoration. No post-and-core service was reported on this tooth on this date of service. Attachments: pre-operative periapical radiograph (dated); post-operative photograph showing the buildup in place (dated). EXAMPLE - NOT A PATIENT RECORD. No clinician charted the findings above. Replace every one of them with what your own chart documents before anything goes to a payer. ``` Remarks-line variant (227 characters, including the EXAMPLE marker): ``` EXAMPLE - NOT A PATIENT RECORD - D2950 #14 for same-day CAD-CAM; decay, >=50% structure loss; <3mm dentin after prep; buildup necessary to retain the final restoration; no post/core same DOS. Pre-op PA + post-op photo attached. ``` Before you use this, your chart must show: - the Universal tooth number of the tooth built up - the final restoration the buildup supports, and its delivery date - the decay or fracture that removed the tooth structure - whether the tooth is vital or endodontically treated - how much natural tooth structure is decayed or missing - a chart entry recording that the buildup was necessary to retain the final restoration - the sound dentin remaining circumferentially after preparation, where measured - the number of axial walls missing after preparation - a pre-operative image of the tooth - a post-operative image showing the completed buildup in place - the date the photographs were taken Satisfies the published criteria of: Cigna; Delta Dental (Delta Dental Ins. enterprise); Guardian. Criteria met is not coverage; the plan contract controls. ## What the payers require | Requirement | Payers requiring it | Which payers | | --- | --- | --- | | Retention necessity | 3 of 4 | Cigna; Delta Dental (Delta Dental Ins. enterprise); Guardian | | Structural loss | 2 of 4 | Cigna; Guardian | | Narrative attachment | 1 of 4 | Delta Dental (Delta Dental Ins. enterprise) | | Photographs | 1 of 4 | Delta Dental (Delta Dental Ins. enterprise) | | Plan benefit condition | 1 of 4 | Guardian | | Post-operative imaging | 1 of 4 | Aetna | | Pre-operative imaging | 1 of 4 | Delta Dental (Delta Dental Ins. enterprise) | | Same-date exclusions | 1 of 4 | Cigna | ### Aetna - Submit both pre-operative and post-operative imagery - Use either photographs, with the post-operative view showing the buildup in place, or radiographs from both stages Sources: - [Aetna Dental Clinical Policy Bulletins index (44 bulletins)](https://www.aetna.com/health-care-professionals/clinical-policy-bulletins/dental-clinical-policy-bulletins.html) - [Aetna Dental and Oral Surgery Claim Documentation Guidelines, last updated July 21, 2025 (PDF)](https://www.aetna.com/content/dam/aetna/pdfs/aetna-dental/claim-documentation-guidelines.pdf) - [Aetna DMO/PCD Dental Office Guide, Section VIII — Procedure Guidelines, revised December 15, 2025 (PDF)](https://www.aetnadental.com/professionals/pdf/DMO%20PCD%20DOG%20-%20Section%20VIII%20-%20Proc%20Guidelines.pdf) ### Cigna - The record must show decay or fracture that makes the buildup necessary to retain the final restoration (REST-06) - Not allowed when major decay or fracture is absent or the buildup is unnecessary for retention (REST-06) - Not allowed on the same tooth and date as delivery of the final restoration, except that same-day CAD-CAM restorations may be considered (REST-06) - Not allowed on the same tooth and date as a post-and-core service (REST-06) Sources: - [Cigna Dental Clinical Coverage Determination Guidelines — DPPO, 2026 edition, doc 928339 (PDF)](https://static.cigna.com/assets/chcp/pdf/resourceLibrary/dental/CignaDentalCoverageDeterminationGuidelinesDPPO2026.pdf) - [Cigna Dental Clinical Coverage Determination Guidelines — DPPO, May 2026 re-issue, form 999493 05/26 (PDF)](https://campaigns.cigna.com/static/campaigns-cigna-com/docs/dental-hcpemails/Clinical%20Documents/Cigna%20Dental%20Coverage%20Determination%20Guidelines%20DPPO%206-2026.pdf) - [Cigna Dental Clinical Coverage Determination Guidelines — DHMO, 2026 edition, form 999492 (PDF)](https://static.cigna.com/assets/chcp/pdf/resourceLibrary/dental/CignaDentalCoverageDeterminationGuidelinesDHMO2026.pdf) - [Cigna Dental PPO dental office reference guide, form 988135 12/25 (PDF; also via CignaforHCP.com › Resources › Reference Guides)](https://static.cigna.com/assets/chcp/secure/pdf/resourceLibrary/dental/DPPODentalOfcRefGuide.pdf) ### Delta Dental (Delta Dental Ins. enterprise) - Submit a periapical radiograph; a panoramic image is not a substitute - Submit photographs taken within one year - Include a narrative - Do not report D2950 merely for material used to fill or smooth preparation geometry Sources: - [Delta Dental Ins. Clinical Criteria / Utilization Management, Section 4, effective January 1, 2025 pending state regulatory approval (PDF)](https://www1.deltadentalins.com/content/dam/ddins/en/pdf/dentists/provider-tools/clinical-criteria-utilization-management.pdf) - [Delta Dental FYI — claim tips for core buildups and crown lengthening, December 2, 2022](https://www1.deltadentalins.com/dentists/fyi-online/2022/claim-tips-core-buildups.html) - [Delta Dental Federal Government Programs Dental Office Handbook 2026 (PDF)](https://www1.deltadentalins.com/content/dam/ddins/en/pdf/affiliate-sites/common/dental-office-handbook-2026.pdf) - [Delta Dental of North Carolina — Dentist Handbook, January 1, 2026 (PDF)](https://deltadentalnc.com/hubfs/Delta%20Dental%20Dentist%20Handbook%202026.pdf) ### Guardian - The buildup must accompany a covered crown or bridge unit - Documentation must confirm substantial loss of natural tooth structure from decay or injury - Less than 3 mm of sound dentin must remain circumferentially after preparation - For vital teeth, the guidelines state that benefit is generally considered when at least 50% of tooth structure is decayed or missing Sources: - [Guardian provider toolkit — public clinical-guidelines link](https://www.guardianlife.com/providers/toolkit) - [Guardian Dental Clinical Guidelines 2026, updated August 12, 2026 (PDF)](https://storage.pardot.com/503851/1786988624j5KmwrmM/Dental_Clinical_Guidelines_2026_August.pdf) - [Guardian DentalGuard Preferred network dentist manual, stamped 08.25.2025 (PDF)](https://storage.pardot.com/503851/1778176336KbJRzZWQ/DENTALGUARD_PREFERRED_NETWORK_DENTIST_MANUAL.pdf) ## Why these narratives get denied ### Why a core buildup is bundled into the crown allowance A buildup is denied as included in the crown when the record does not establish a separate need. Cigna's REST-06 allows D2950 when decay or fracture makes the buildup necessary to retain the final restoration and disallows it when major decay or fracture is absent or the buildup is unnecessary for retention. Delta Dental Ins. states plainly that D2950 is not to be reported merely for material used to fill or smooth preparation geometry. Guardian looks for substantial loss of natural tooth structure from decay or injury with less than 3 mm of sound dentin remaining circumferentially after preparation. What separates a paid buildup from a bundled one is a record of retention necessity, not the wording of the narrative. ### Why same-date buildup and crown claims get denied Cigna's REST-06 does not allow D2950 on the same tooth and date as delivery of the final restoration, with one published exception: same-day CAD-CAM restorations may be considered. It also disallows D2950 on the same tooth and date as a post-and-core service, and alongside a direct filling, inlay, or onlay. If the crown was seated the same day by conventional means, the code is excluded by the payer's own terms and the narrative cannot rescue it. ### Why buildup claims need before and after imagery Aetna's claim-documentation guidelines ask for both pre-operative and post-operative imagery, using either photographs, with the post-operative view showing the buildup in place, or radiographs from both stages. Delta Dental Ins. asks for a periapical radiograph, photographs taken within one year, and a narrative. A single pre-operative film does not satisfy either rule. ## Common questions ### What should a core buildup narrative include? The tooth number, the decay or fracture that removed the structure, how much structure is gone and how much sound dentin remains circumferentially after preparation, the number of axial walls missing, the statement that the buildup was necessary to retain the final restoration, the final restoration it supports and when it was delivered, and the pre-operative and post-operative images on file. ### Why was my D2950 bundled into the crown? Because the record did not establish a separate retention need. Cigna's REST-06 disallows the code when major decay or fracture is absent or the buildup is unnecessary for retention; Delta Dental Ins. states that D2950 is not for material used to fill or smooth preparation geometry; and Guardian looks for substantial structural loss with less than 3 mm of sound dentin remaining circumferentially after preparation. Those are chart facts, not narrative wording. ### Can a buildup and a crown be billed on the same day? Cigna's REST-06 does not allow D2950 on the same tooth and date as delivery of the final restoration, with one published exception: same-day CAD-CAM restorations may be considered. This builder treats a same-day conventional crown as failing that rule and says so in the checklist rather than writing around it. ### Does a core buildup claim need a post-operative image? Aetna's claim-documentation guidelines ask for both pre-operative and post-operative imagery, using either photographs, with the post-operative view showing the buildup in place, or radiographs from both stages. Delta Dental Ins. asks for a periapical radiograph, photographs taken within one year, and a narrative. ## What this builder will not do — on purpose - **It will not write findings you have not charted.** Every sentence traces to a field you filled. An unmet payer criterion becomes a warning, never wording — payer reviewers and auditors compare narratives to charts, and a narrative that outruns the chart is worse than a denial. - **It will not suggest a different code.** D4341 vs D4342 follows the CDT tooth-count definition from your entries — downward only. No upgrade prompts, no “consider billing” anything. - **It has no path for a same-day emergency-visit (D9110) narrative.** The goal is a claim that is right the first time, not a bigger one. - **It never asks for patient information.** Names, birth dates, member IDs, and dates of service render as [PLACEHOLDERS] you fill inside your own practice-management system. Nothing you type here leaves your browser. - **It does not remember your entries either.** Nothing you type is saved to this browser — reload the page and the form is empty. On a shared front-desk computer that is the point: one patient's charted findings cannot still be sitting on screen for the next one. - **A worked example is labelled as one, inside the file.** The sample findings on this page were written by Dentovio and charted by nobody. Copy or download one and the marker travels with it — in the title, in the first line, in the closing line, and in the filename — so a specimen can never be mistaken for a record of care. - **A met checklist is not a coverage promise.** These are the payers' published documentation criteria, cited with verification dates. The patient's plan contract still controls coverage, frequencies, and exclusions — and Delta Dental is 39 independent member companies; confirm yours. - **Where a payer publishes nothing, we say so.** MetLife's current criteria sit behind a provider login; we show the last public edition, dated, and tell you to confirm. We do not paraphrase billing blogs into “requirements.” - Educational reference, not billing, legal, or clinical advice. The treating provider reviews and owns every claim. CDT codes and descriptors are the property of the American Dental Association. This page provides educational billing guidance only and does not reproduce ADA copyrighted descriptors. ## Build one from your own charted findings The builder at https://dentovio.com/dental-claim-narratives/d2950-core-buildup assembles a narrative from entries you make in the browser. It requests no patient information, transmits nothing, and states only what you record. ## Related - [All narrative templates](https://dentovio.com/dental-claim-narratives/index.html.md) - [Core buildup payer documentation requirements](https://dentovio.com/dental-claim-documentation/d2950-core-buildup/index.html.md) - [Dental claim denial codes](https://dentovio.com/dental-claim-denial-codes/index.html.md) - [Dental billing and claims hub](https://dentovio.com/dental-billing/index.html.md)