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    v1.0.31
    OpenPayerPolicy UpdatesDental/Oral & MaxillofacialDelta Dental Ohio Coronectomy Coverage | OpenPayer
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    CurrentDelta Dental of OhioPolicy 282.41.v2

    Clinical Criteria for Coronectomy

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    Establishes clinical criteria for determining the medical necessity and clinical appropriateness of coronectomy for impacted teeth when complete extraction may risk neurovascular injury.

    Policy Summary
    PayerDelta Dental of Ohio
    PolicyClinical Criteria for Coronectomy
    Policy CodePolicy 282.41.v2
    Change TypeNo material change
    Effective DateJun 21, 2025
    Next Review DateNot specified
    Key ActionSubmit complete preoperative radiographs showing the planned tooth from crown to root tip and associated vital structures.
    SourceLink
    POLICY UPDATE CHANGES

    No material clinical or coverage changes in this revision.

    D7251Applicable CDT coronectomy code
    2Required indication sets
    6 mo, then annualFollow-up schedule
    RequiredPreoperative imaging
    13Potential disapproval conditions

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    Medical Necessity and Clinical Appropriateness

    Initial Medical Necessity Criteria

    Covered or considered medically necessary and clinically appropriate when ALL of the following two indication sets are satisfied.

    Both indication sets required

    • Indication for extraction of an impacted tooth

      • Impacted non-third-molar tooth: An impacted tooth other than a third molar cannot erupt into a functional position and presents with a generally accepted indication for removal.
      • Impacted third molar: An impacted third molar is not expected to erupt by the middle of the third decade and presents with a generally accepted indication for removal.By the middle of the third decade
      • Impacted supernumerary tooth: A supernumerary tooth is impacted and not expected to be functional.

    • Risk of neurovascular or related injury from root removal

      • Infection or adjacent tooth loss: The impacted tooth is associated with chronic soft tissue infections such as pericoronitis, or bone or attachment loss of the adjacent tooth.
      • Pain from blocked eruption: The impacted tooth is associated with recurrent or chronic pain due to a blocked path of eruption.
      • Resorption of adjacent tooth: The impacted tooth is associated with resorption of the adjacent tooth.
      • Interference with adjacent-tooth treatment: The impacted tooth interferes with successful completion of needed restorative, endodontic, or periodontal therapy of an adjacent tooth.
      • Coronal pathology:

    Additional Clinical Considerations

    The following circumstances may support consideration of coronectomy coverage depending on the individual clinical circumstances and applicable benefit-program criteria.

    Additional clinical considerations

    • Non-third-molar neurovascular involvement: A tooth other than an impacted third molar presents with neurovascular bundle involvement.
    • Taurodontism: Dental taurodontism of an impacted tooth may increase the risk of mandibular angle fracture or paresthesia.
    • High-risk root anatomy: An impacted tooth has curved, dilacerated, or thin roots prone to fracture.
    • Maxillary vital-structure proximity: A maxillary tooth is in close approximation to the maxillary antra or associated neurovascular bundles, including the infraorbital canal and nerve.

    Coronectomy may be considered not medically necessary, inadvisable, clinically deficient, or subject to disapproval when extraction criteria are not met; when the coronal portion is too close to the inferior alveolar nerve or another vital structure for safe removal; when radicular pathology or infection is present; when the tooth is mobile; when coronal removal is incomplete or root fragments are mobilized; when iatrogenic damage occurs; when surgical risk outweighs benefit because of antiresorptive therapy or head and neck radiotherapy; when the patient is medically unstable; or when conservative treatment can make extraction unnecessary.

    A coronectomy may be determined not medically necessary when performed prophylactically on a tooth or area without associated pain, disease, pathology, or locally deleterious effects.

    A coronectomy may be determined not medically necessary when neurovascular structures are not involved and a standard surgical extraction would suffice, such as in a young patient with incomplete root formation and no neurovascular bundle involvement.

    A coronectomy may be determined not medically necessary when more conservative treatment can manage the patient’s condition and render tooth extraction unnecessary.

    Applicable Procedure Codes

    Applicable Dental Procedure CodeCPT
    D7251Coronectomy - intentional partial tooth removal, impacted teeth only.
    Distinct Procedure Referenced for DifferentiationCPT
    D3921Decoronation or submergence of an erupted tooth; intentional removal of coronal tooth structure for preservation of the root and surrounding bone.

    Documentation and Determination Requirements

    Documentation Required

    Submit complete preoperative radiographs

    Submit preoperative diagnostic-quality radiographs of both the tooth planned for coronectomy and the opposing dentition. The radiographs must allow evaluation of the entire tooth from crown to root tip and any associated vital structures, including the neurovascular bundles.

    Documentation Required

    Explain the preoperative rationale when needed

    If the submitted radiographs do not clearly support that a coronectomy was medically necessary, submit documentation consistent with the patient record explaining the preoperative rationale for planning the procedure. Delta Dental of Ohio may request other clinical information relevant to the patient’s care.

    Documentation Required

    Document examination and qualifying indications

    Base the treatment decision on a thorough clinical and radiographic examination and document a generally accepted indication for the procedure. The record must document at least one qualifying indication from each of the two required clinical sets.

    Policy Context

    Coronectomy is the intentional partial removal of the crown of an impacted tooth while retaining the radicular complex. It is used when complete extraction is likely to create a substantial risk of temporary or permanent neurovascular injury, most commonly involving the inferior alveolar nerve.

    Terminology

    Coronectomy
    ProcedureA surgical procedure involving impacted teeth in which the crown is intentionally partially removed when conventional extraction is likely to cause a neurovascular complication.
    Tooth component retainedThe radicular complex is retained after partial crown removal.
    Common applicationMost commonly associated with impacted third molars where complete removal may cause temporary or permanent neurological disturbances of the inferior alveolar nerve.
    D7251 Coronectomy
    CodeD7251 (CDT)
    DefinitionCoronectomy — intentional partial tooth removal, impacted teeth only.
    Policy Summary
    PayerDelta Dental of Ohio
    PolicyClinical Criteria for Coronectomy
    Policy CodePolicy 282.41.v2
    Change TypeNo material change
    Effective DateJun 21, 2025
    Next Review DateNot specified
    Key ActionSubmit complete preoperative radiographs showing the planned tooth from crown to root tip and associated vital structures.
    SourceLink
    On This Page
    Medical Necessity and Clinical AppropriatenessApplicable Procedure CodesDocumentation and Determination RequirementsPolicy ContextTerminology
    The impacted tooth has associated coronal pathology, such as a dentigerous cyst limited to the coronal portion.
  1. Underlying medical condition or pending surgery: The impacted tooth must be removed because of an underlying medical condition or pending surgical services, such as prevention of chronic periodontal infections in support of transplant surgery, chemotherapy, or radiation therapy.
  2. Oncologic nerve or fracture risk: Coronectomy may be indicated to avoid inferior alveolar nerve injury and mandible fracture, mainly in oncological patients.
  3. Lingual plate fracture risk: The likelihood of lingual plate fracture is high.
  4. Bleeding risk: A patient with coagulation dysfunction has a significant risk of uncontrolled bleeding.
    5. Denial Risk

    Required clinical indications are not met

    Benefit payment may be disapproved when the tooth does not meet at least one indication from each required set: an indication for extraction of an impacted tooth and an indication that root removal may directly or indirectly damage the associated neurovascular bundle.

    Denial Risk

    Contraindicating or deficient clinical circumstances

    Disapproval may result when a standard surgical extraction would suffice, the procedure is prophylactic without associated signs or symptoms, disease, pathology, or locally deleterious effects, or more conservative treatment would make extraction unnecessary. Risk also exists when the patient is medically unstable or compromised by antiresorptive therapy or head and neck radiotherapy, or when the procedure is incomplete or causes iatrogenic damage.

    Denial Risk

    Insufficient supporting documentation

    If the treating practitioner cannot provide the applicable clinical and radiographic information needed to evaluate medical necessity and clinical appropriateness, benefit payment may be disapproved.

    Distinction from D3921
    D7251 is distinct from D3921, which is decoronation or submergence of an erupted tooth involving intentional removal of coronal tooth structure for preservation of the root and surrounding bone.