Summary & Overview

CPT 21044: Resection of Malignant Mandible Tumor

CPT code 21044 denotes open surgical resection of a malignant tumor of the mandible, performed via intraoral or extraoral approaches. This procedure carries significant clinical and billing implications because it involves oncologic resection of the lower jaw bone, often requiring multidisciplinary care, perioperative hospitalization, reconstruction planning, and specialized surgical teams. Nationally, care for mandibular malignancies affects surgical specialties in head and neck oncology and maxillofacial surgery and intersects with payer policies for complex oncologic procedures.

Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of coding context and clinical indications for the procedure, common modifiers and billing considerations provided in the input, and guidance on typical service settings. The publication summarizes available benchmarks and payer coverage patterns where provided, highlights policy-relevant billing considerations for high-complexity head and neck oncologic surgery, and explains what clinical and administrative information is typically needed to support claims for CPT code 21044.

Data not available in the input for associated taxonomies, specific ICD-10 diagnosis examples, and related procedure codes is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 21044mandibular tumor resectionhead and neck surgeryoncologic resectionmaxillofacial surgerysurgical codingoperative procedurehospital services

Billing Code Overview

CPT code 21044 describes the open surgical removal of a malignant tumor of the mandible (lower jaw bone). The procedure may be performed via an intraoral approach (through the mouth) or an extraoral approach (through the skin) depending on tumor location, size, and surgical planning.

Service type: Surgical resection of malignant mandibular tumor
Typical site of service: Hospital operating room or ambulatory surgical center (inpatient or outpatient surgical setting, depending on case complexity and perioperative needs)

Clinical & Coding Specifications

Clinical Context

A 62-year-old male presents with a progressively enlarging, painful mass of the left mandible with associated loosening of adjacent teeth and radiographic evidence of an osteolytic lesion. Biopsy confirms squamous cell carcinoma involving the body of the mandible. After multidisciplinary tumor board review, the patient is scheduled for an open marginal or segmental mandibulectomy with intraoral and extraoral access as required to achieve negative margins. The clinical workflow includes preoperative staging (imaging and dental evaluation), informed consent, general anesthesia with endotracheal intubation, resection of the mandibular tumor via intraoral or extraoral approach, hemostasis, possible immediate reconstruction (plate or free flap) if indicated, specimen submission to pathology, postoperative monitoring in PACU with admission to an inpatient surgical service, pain control, oral and dental rehabilitation planning, and coordination of adjuvant radiation or medical oncology follow-up as indicated.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work required is substantially greater than typical for `21044` (extensive dissection, revision, or unexpectedly difficult tumor extirpation).

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Taxonomy Code	Specialty	Notes
206E00000X	Oral and Maxillofacial Surgery	Primary specialty that commonly performs mandibulectomy procedures.
2080P0207X	Otolaryngology - Head & Neck Surgery	Head and neck surgeons perform mandibular resections for oncologic disease.
207L00000X	Plastic and Reconstructive Surgery	Performs complex reconstruction, including vascularized free flaps, after mandible resection.
208M00000X	General Surgery — Surgical Oncology	Surgical oncologists involved in multidisciplinary head and neck cancer care.
207K00000X	Orthopedic Surgery of the Craniofacial Skeleton (Maxillofacial?)	Involved less commonly, typically for complex reconstructive needs.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C41.2`	Malignant neoplasm of mandible	Directly indicates primary malignant tumor of the mandible, the typical indication for `21044`.
`C41.9`	Malignant neoplasm of bone and articular cartilage, unspecified	Used when primary site within jaw bones is confirmed but not further specified.
`C02.9`	Malignant neoplasm of unspecified part of tongue	Included when tumor invades adjacent oral structures requiring mandible resection.
`C03.0`	Malignant neoplasm of upper gum	Relevant when gingival tumors extend to involve the mandible.
`C04.9`	Malignant neoplasm of floor of mouth, unspecified	Relevant when tumor extension to mandible necessitates resection.
`C79.2`	Secondary malignant neoplasm of skin (not directly mandible)	Included as an example of metastatic involvement considerations (less common primary indication).

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`21045`	Removal of tumor, mandible; including marginal or segmental mandibulectomy with more extensive resection	Used for larger or more complex resections of the mandible and may be selected instead of `21044` when extent exceeds the scope of `21044`.
`21046`	Radical resection of mandible with continuity defect reconstruction using non-vascularized bone graft	Performed when immediate reconstruction of continuity defects is done without microvascular free tissue transfer.
`21124`	Reconstruction of mandible with internal rigid fixation (eg, plate/screws)	Used when internal fixation hardware is placed for stabilization after mandibulectomy.
`20955`	Reconstruction of mandible with microvascular (free) tissue transfer	Used when vascularized free flap (eg, fibula free flap) is performed for definitive reconstruction after tumor resection.
`21248`	Reconstruction of mandibular defect with alloplastic material (eg, custom implant)	Used when patient receives an alloplastic implant for mandibular contour and continuity reconstruction.