Clinical Context
A 34-year-old patient presents to a maxillofacial surgery clinic for preoperative planning of orthognathic surgery to correct severe mandibular hypoplasia and malocclusion. The surgical team determines an oral surgical splint is required to support facial contours and to guide intraoperative jaw positioning. During a dedicated preoperative visit, the provider takes an impression (negative facial imprint) of the patient’s face, records occlusion, and fabricates a custom oral surgical splint contoured to the patient’s facial anatomy. The splint is used during the corrective jaw surgery and for immediate postoperative support when soft-tissue or bony structures require stabilization.
Typical clinical workflow:
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Referral and surgical consultation with obtaining medical history and imaging (panoramic radiograph, CBCT as indicated).
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Preoperative appointment for facial and intraoral impressions, bite registration, and splint fabrication by the surgeon or trained dental technician under the provider’s direction.
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Delivery and verification of fit; documentation of impressions taken, materials used, and clinical indications.
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Use of the splint intraoperatively and in the immediate postoperative period for support and occlusal guidance, with appropriate postoperative follow-up and adjustments as needed.
Coding Specifications
| Modifier | Description | When to Use |
|---|
22 | Increased procedural services | Use when work required to fabricate or fit the splint is substantially greater than usual due to complexity (document increased work). |
23 | Unusual anesthesia | Use when an unrelated anesthesia event occurs for the splint procedure (rare for this code).
52 | Reduced services | Use when a partially performed service or the splint fabrication is significantly reduced.
53 | Discontinued procedure | Use if the splint fabrication was started but discontinued due to unforeseen circumstances.
59 | Distinct procedural service | Use to indicate a separate encounter when other procedures are reported on the same date that are not normally reported together.
62 | Two surgeons | Use when two surgeons work together as primary surgeons on complex reconstructive cases involving splint fabrication and surgery.
76* | Repeat procedure by same physician | Use if the splint procedure must be repeated by the same provider during the postoperative period.
78 | Unplanned return to operating/procedure room | Use if a return to the OR is required and splint fabrication or modification occurs during that unplanned return.
80 | Assistant surgeon | Use when an assistant surgeon is required and documented.
81 | Minimum assistant surgeon | Use when a minimal level assistant surgeon participates.
90* | Reference (outside) laboratory | Use if an outside lab fabricates the splint (note: report as technical component arrangements).
TC | Technical component | Use if reporting only the technical component of splint fabrication when applicable.
QK | Medical direction of two or more assistants | Use when the provider medically directs multiple assistants in the operating room.
LT | Left side | Use when laterality reporting is required and the procedure is side-specific (rare for facial splints).
| Taxonomy Code | Specialty | Notes |
|---|
206E00000X | Oral and Maxillofacial Surgery | Primary specialty that commonly performs and oversees fabrication and use of oral surgical splints. |
1223G0001X | Prosthodontics | Specialist involved in design and fabrication of maxillofacial prostheses and occlusal splints.
122300000X | General Dentistry | General dentists with maxillofacial expertise or working in surgical teams may fabricate or assist with splints.
208000000X | Otolaryngology | Head and neck surgeons involved when splints are used in complex facial reconstructive cases.
207L00000X | Plastic Surgery | Reconstructive plastic surgeons who participate in orthognathic or ablative-reconstructive cases where splints are indicated.
*Note: Modifiers 76, 90 are not in the provided raw modifier list but reflect common modifier usage concepts; if strict adherence to provided modifier list is required, replace with QX/QY as appropriate.
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|
S02.6XXA | Fracture of mandible, initial encounter | Mandibular fractures requiring reconstructive stabilization may need an oral surgical splint for intraoperative alignment and postoperative support. |
C41.1 | Malignant neoplasm of mandible | Ablative surgery for mandibular tumors often requires fabrication of splints to support reconstruction and facial contours.
M26.60 | Temporomandibular joint disorder, unspecified | Severe TMJ disorders undergoing surgical correction may use splints for occlusal stabilization during surgery.
Q67.2 | Craniofacial anomalies, including mandibular hypoplasia | Congenital facial deformities treated with orthognathic surgery commonly require custom splints for repositioning.
K07.6 | Dentofacial anomalies [including malocclusion] | Orthognathic procedures for corrective occlusion use splints to guide intraoperative jaw relationships.
Z98.890 | Other specified postprocedural states | Postoperative management where a splint provides ongoing facial structural support.
S03.2XXA | Injury of other muscles and tendons at neck level, initial encounter | Traumatic injuries to jaw-supporting structures may necessitate splinting during reconstruction.
M26.89 | Other specified disorders of jaw | Miscellaneous jaw disorders that require surgical repositioning and splint support.
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|
21085 | Fabrication of oral surgical splint to match the patient’s facial contours by taking an impression of the patient's face | Primary procedure: describes the fabrication and fitting of the custom oral surgical splint used for facial support in orthognathic and reconstructive cases. |
70170 | Computed tomography, maxillofacial area; without contrast material | Preoperative imaging commonly used for surgical planning and splint design in complex maxillofacial cases.
70336 | CT maxillofacial with contrast | Alternative imaging when vascular detail or enhanced delineation is required for reconstruction planning.
21246 | Reconstruction of the mandible, midline; with internal rigid fixation | Surgical reconstruction often performed with intraoperative use of an oral surgical splint for positioning.
21254 | Reconstruction of mandible, segmental, with internal rigid fixation | Related reconstructive procedure where splints guide occlusion and bone alignment.
21255 | Reconstruction of mandible, segmental, with bone graft; microvascular free flap | Complex ablative/reconstructive cases in which a splint assists intraoperative alignment and postoperative support.
Note: If additional facility or laboratory technical billing applies (e.g., outside lab fabrication), report the appropriate technical component or lab supply codes per payer guidelines.