🩺 CPT 41120 — Glossectomy; Less Than One-Half Tongue
Quick Reference
wRVU: 10.86 | Global Period: 090 | Assistant Payable: Yes, with documentation | Bilateral Indicator: 0 Rule: CPT 41120 carries a payment policy indicator of 0 for bilateral surgery because the tongue is a single midline structure without a paired laterality concept under CPT rules, and it carries an assistant-at-surgery indicator of 2, meaning payment for an assistant surgeon is permitted only when supporting documentation of medical necessity is submitted with the claim.
📋 Clinical Description
CPT 41120 describes… a partial glossectomy in which the surgeon excises less than one-half of the tongue, typically to remove a malignant or benign mass, an area of dysplasia, or an extensive lesion too large for simple excision under 41110 or 41112. The procedure is most often performed transorally using electrocautery, cold-knife dissection, or a surgical laser, with the defect closed primarily or reconstructed with a local tongue flap; intraoperative frozen-section margin assessment is common when malignancy is suspected.
This code sits between the simple lesion-excision family and the more extensive resection codes on the CPT ladder. Where 41112 and 41113 describe removal of a discrete lesion with closure, 41120 requires that a defined portion of tongue musculature and mucosa be resected as a formal glossectomy, and where 41130 specifically describes removal of exactly one lateral half (hemiglossectomy), 41120 is reserved for resections that fall short of that anatomic threshold.
This procedure may be performed in the following clinical contexts:
- Early-stage (T1-T2) squamous cell carcinoma of the oral tongue confined to less than half the tongue — wide local excision with margin control.
- Symptomatic or enlarging benign tumor (e.g., granular cell tumor, schwannoma, lipoma) of the tongue body.
- Extensive area of oral epithelial dysplasia or leukoplakia refractory to conservative management.
- Definitive excisional biopsy of an indeterminate tongue mass when incisional biopsy is nondiagnostic.
🔬 Anatomical & Procedural Considerations
| Variant | Mechanism | Key Notes |
|---|---|---|
| Transoral Cold-Knife Excision | Direct transoral resection of the involved tongue segment using scalpel and electrocautery for hemostasis, with primary mucosal closure using absorbable suture. | The most common technique for anterior and mid-tongue lesions; requires adequate transoral exposure and is typically performed under general anesthesia with orotracheal or nasotracheal intubation to preserve the surgical field. |
| Transoral Laser Microsurgery (TLM) | CO2 or KTP laser used to resect the tongue segment under operating-microscope magnification, offering precise margins and reduced intraoperative bleeding. | Favored for posterior or difficult-to-access lesions; requires laser-safe airway precautions and specialized equipment, which does not change the CPT code assignment but affects facility resource utilization. |
| Robotic-Assisted (TORS) Partial Glossectomy | Transoral robotic surgery platform provides three-dimensional visualization and articulated instrumentation for resection of base-of-tongue or posterior lesions. | Increasingly used for oropharyngeal extension; approach does not change the CPT code but does change the ICD-10-PCS approach character to endoscopic via natural opening. |
Clinical Pearl
The distinguishing documentation element between 41120 and the simple excision codes (41110-41114) is the extent and depth of resection — operative notes describing removal of a defined wedge or segment of tongue musculature (not just superficial mucosa/submucosa) support glossectomy code assignment, and coders should confirm the surgeon explicitly characterizes the resection as less than one-half of the tongue to avoid confusion with hemiglossectomy.
✅ Procedure Includes
- Transoral exposure and resection of the involved portion of the tongue, less than one-half of total tongue volume.
- Hemostasis of the resection bed using electrocautery, suture ligation, or laser coagulation.
- Primary closure of the mucosal defect or reconstruction with an adjacent local tongue flap.
- Intraoperative specimen orientation and submission for pathologic evaluation.
- Standard preoperative and postoperative care included within the 090-day global period.
- Local anesthetic infiltration when used as an adjunct to general anesthesia.
❌ Excludes / Do Not Report Together
| Code | Description | Relationship |
|---|---|---|
| 41112 | Excision of lesion of tongue with closure; anterior two-thirds | Represents removal of a discrete lesion rather than a formal glossectomy segment; report 41112 instead of 41120 when the resection is limited to a superficial lesion without a defined tongue-segment resection. |
| 41130 | Glossectomy; hemiglossectomy | Describes resection of exactly one lateral half of the tongue; do not report 41120 and 41130 together for the same operative session, as they represent mutually exclusive extents of resection. |
| 41135 | Glossectomy, partial, with unilateral radical neck dissection | Includes the neck dissection as part of the code descriptor; when a radical neck dissection is performed concurrently with a partial glossectomy, report 41135 rather than 41120 plus a separate neck dissection code. |
| 38720 | Cervical lymphadenectomy (complete) | Separately reportable only when a formal, complete cervical lymphadenectomy is performed independent of a code that already bundles neck dissection; verify NCCI edits before unbundling. |
Bundling Alert
Because 41120 carries a 090-day global surgical package, all related postoperative visits, uncomplicated wound care, and suture removal within 90 days are bundled into the global fee and should not be billed separately. If a radical or modified radical neck dissection is planned as part of the same operative session, the combination code 41135 should be used instead of unbundling 41120 with a separate neck dissection code, and payers routinely apply NCCI edits to catch this pattern; append modifier -59 only when the neck dissection is truly separate and distinct (e.g., contralateral, staged, or unrelated to the glossectomy field), with clear operative documentation supporting the distinction.
🌳 Code Tree — Surgery: Digestive System
40490-41599 Surgery: Digestive System — Lips, Vestibule of Mouth, Tongue and Floor of Mouth
│
├── 41100-41155 Excision (Tongue and Floor of Mouth)
│ ├── 41115 Excision of lingual frenum (frenectomy)
│ ├── 41116 Excision, lesion of floor of mouth
│ ├── ▶▶ 41120 ◀◀ Glossectomy; less than one-half tongue ← YOU ARE HERE (Global: 090)
│ ├── 41130 Glossectomy; hemiglossectomy (Global: 090)
│ └── 41135 Glossectomy; partial, with unilateral radical neck dissection (Global: 090)
│
├── 41140-41155 Glossectomy, complete/composite procedures
│ ├── 41140 Glossectomy; complete or total, without radical neck dissection
│ └── 41155 Glossectomy; composite procedure (Commando type), with radical neck dissection
│
└── 41250-41252 Repair (Tongue and Floor of Mouth)
├── 41250 Repair of laceration 2.5 cm or less; floor of mouth and/or anterior two-thirds of tongue
└── 41252 Repair of laceration of tongue, floor of mouth, over 2.6 cm or complex💰 RVU & Reimbursement Profile
| Component | Value |
|---|---|
| Work RVU | 10.86 |
| Global Period | 090 |
| Bilateral Indicator | 0 — Bilateral concept does not apply; tongue is a single midline structure |
| Assistant Surgeon | Indicator 2 — payable with documentation supporting medical necessity |
| Co‑Surgeon | Indicator 1 — payable with documentation supporting need for two surgeons of different specialties |
| Team Surgery | Indicator 0 — team surgery payment not permitted for this code |
| PC/TC Split | 0 — not a PC/TC split code; wholly a physician/facility procedural service |
| Modifier -51 Exempt | No |
| Anesthesia | Typically general anesthesia via orotracheal or nasotracheal intubation; anesthesia base unit value should be confirmed against the current ASA Relative Value Guide |
Bilateral Billing Rules
Modifier -50 and laterality modifiers -RT/-LT are not clinically applicable to 41120 because the tongue is a single, non-paired midline structure, and CMS assigns a bilateral indicator of 0 accordingly — claims submitted with these modifiers on this code will typically be denied or returned as unprocessable.
🏷️ Modifier Reference
| Modifier | Name | When to Apply |
|---|---|---|
| -RT | Right Side | Not applicable — the tongue is a single midline structure without a laterality designation under CPT. |
| -LT | Left Side | Not applicable — the tongue is a single midline structure without a laterality designation under CPT. |
| -50 | Bilateral | Not applicable — bilateral indicator is 0; the concept of a paired, bilateral tongue structure does not exist. |
| -E1 | Upper Left Eyelid | Not applicable to this code; eyelid-specific modifier unrelated to tongue procedures. |
| -E2 | Lower Left Eyelid | Not applicable to this code; eyelid-specific modifier unrelated to tongue procedures. |
| -E3 | Upper Right Eyelid | Not applicable to this code; eyelid-specific modifier unrelated to tongue procedures. |
| -E4 | Lower Right Eyelid | Not applicable to this code; eyelid-specific modifier unrelated to tongue procedures. |
| -25 | Significant E/M | Apply when a significant, separately identifiable E/M service is performed by the same physician on the same day as the glossectomy, such as initial diagnostic workup of a newly discovered oral mass. |
| -24 | Unrelated E/M | Apply to an E/M service furnished during the 090-day global period that is unrelated to the glossectomy, such as evaluation of an unrelated head and neck complaint. |
| -51 | Multiple Procedures | Apply when 41120 is reported with other significant, separately payable procedures performed at the same operative session, subject to payer-specific multiple-procedure payment reduction rules. |
| -59 | Distinct Service | Apply to indicate a procedure performed at a different anatomic site or separate encounter than another bundled code, such as a truly distinct, separately staged neck dissection. |
| -52 | Reduced Services | Apply when the glossectomy is intentionally reduced in scope relative to the standard procedure, with documentation of the specific reduction. |
| -53 | Discontinued | Apply when the procedure is started but discontinued due to extenuating circumstances or threat to patient well-being after anesthesia induction. |
| -58 | Staged | Apply for a planned or staged related procedure performed during the global period, such as a planned reconstructive revision. |
| -78 | Return to OR | Apply for an unplanned return to the operating room during the global period for a complication related to the glossectomy, such as bleeding or wound dehiscence. |
| -79 | Unrelated Procedure | Apply for an unrelated procedure performed by the same physician during the global period, such as an unrelated laryngeal or sinus procedure. |
🩺 Common ICD‑10‑CM Pairings
Primary Diagnosis Group
| ICD‑10 | Description | HCC? | Notes |
|---|---|---|---|
| C02.0 | Malignant neoplasm of dorsal surface of tongue | Yes | Maps to HCC 12 (V28 model) reflecting active malignancy status; verify current diagnosis year and active treatment status for accurate risk-adjustment capture. |
| C02.1 | Malignant neoplasm of border of tongue | Yes | Common site for oral tongue squamous cell carcinoma; supports medical necessity for glossectomy when documented as T1-T2 disease confined to less than half the tongue. |
| C02.2 | Malignant neoplasm of ventral surface of tongue | Yes | Less common primary site; confirm operative and pathology documentation align on laterality and surface involvement. |
| C02.3 | Malignant neoplasm of anterior two-thirds of tongue, part unspecified | Yes | Use only when the operative/pathology report does not further specify dorsal, ventral, or border involvement. |
| C02.9 | Malignant neoplasm of tongue, unspecified | Yes | Nonspecific code; query the provider for a more specific subsite when documentation allows, as specificity affects both accurate coding and HCC capture. |
| D10.1 | Benign neoplasm of tongue | No | Appropriate when pathology confirms a benign process (e.g., granular cell tumor, fibroma) rather than malignancy. |
Secondary Group
| ICD‑10 | Description | HCC? | Notes |
|---|---|---|---|
| D37.05 | Neoplasm of uncertain behavior of tongue | No | Use when a definitive malignant versus benign determination has not yet been rendered pending final pathology. |
| K13.21 | Leukoplakia of oral mucosa, including tongue | No | Supports medical necessity when the surgical indication is extensive dysplastic leukoplakia rather than a discrete mass. |
Etiology / Complication
| ICD‑10 | Description | HCC? | Notes |
|---|---|---|---|
| K14.0 | Glossitis | No | Report only if a coexisting inflammatory condition of the tongue is separately documented and clinically relevant to the encounter. |
| D00.02 | Carcinoma in situ of other and unspecified parts of mouth | No | Appropriate when pathology confirms carcinoma in situ of the tongue rather than invasive malignancy; flag for verification against the current CMS-HCC V28 model, as in-situ neoplasms are not typically risk-adjusted. |
Coding Specificity Reminder
Always code to the highest level of specificity supported by the pathology report, including exact tongue subsite (dorsal, ventral, border, anterior two-thirds) and laterality when documented, since these details affect both ICD-10-CM code selection and downstream HCC risk-adjustment accuracy for malignant diagnoses.
🏥 MS‑DRG Considerations
CPT 41120 performed in the inpatient setting groups to MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth, and Throat), typically within MS-DRGs 129 (Major Head and Neck Procedures with MCC), 130 (with CC), or 131 (without CC/MCC), with final tier assignment driven by the presence and specificity of secondary diagnoses such as malnutrition, anemia, or postoperative complications. There is no CMS National Coverage Determination (NCD) specific to partial glossectomy; coverage is governed by general surgical medical-necessity criteria, and any applicable Local Coverage Determination (LCD) would be Medicare Administrative Contractor-specific rather than procedure-specific nationally, so coders should verify jurisdictional LCD/LCA policy for any documentation requirements tied to oncologic surgery of the head and neck.
🔧 ICD‑10‑PCS Equivalents
| PCS Code | Full Description | Modality |
|---|---|---|
| 0CB7XZZ | Excision of Tongue, External Approach, No Device, No Qualifier | Standard transoral cold-knife or electrosurgical partial glossectomy |
| 0CB70ZZ | Excision of Tongue, Open Approach, No Device, No Qualifier | Used when access requires an external incision (e.g., mandibulotomy or transcervical approach) |
| 0CB78ZZ | Excision of Tongue, Via Natural or Artificial Opening Endoscopic, No Device, No Qualifier | Transoral robotic surgery (TORS) or transoral laser microsurgery approach |
| 0CT70ZZ | Resection of Tongue, Open Approach, No Device, No Qualifier | Not used for 41120; included for comparison as the root-operation crosswalk for total glossectomy (CPT 41140-series) |
PCS Character Analysis
| Position | Character | Value | Definition |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical section, encompassing the vast majority of operative procedures. |
| 2 | Body System | C | Mouth and Throat body system, which includes the tongue among other oral cavity structures. |
| 3 | Root Operation | B | Excision — cutting out or off a portion of a body part without replacement, matching the partial (less than one-half) resection described by 41120. |
| 4 | Body Part | 7 | Tongue, the specific body part value within the Mouth and Throat body system table. |
| 5 | Approach | X or 0 | External approach is typical for a standard transoral resection; Open approach applies when an external cervical or mandibular incision is required for exposure. |
| 6 | Device | Z | No Device — no device is left in place following a straightforward tongue excision. |
| 7 | Qualifier | Z | No Qualifier — no additional qualifier value applies to this excision procedure. |
Root Operation Comparison
- Excision (B) is correct for 41120 because less than one-half of the tongue is removed, leaving the majority of the body part intact.
- Resection (T) would instead apply to total glossectomy procedures (CPT 41140-series), where the entire tongue is removed rather than a portion.
- Coders should confirm the operative approach (external mucosal access versus an open cervical/mandibular incision) to select the correct fifth-character approach value, as this is the character most frequently miscoded for oral cavity excisions.
📝 Coding Examples
Example 1
Clinical Scenario:
A 58-year-old male presents with a 1.8 cm biopsy-proven squamous cell carcinoma of the right lateral border of the tongue. He undergoes transoral partial glossectomy under general anesthesia, with intraoperative frozen-section margin confirmation and primary mucosal closure. No neck dissection is performed at this encounter.
| Field | Code | Rationale |
|---|---|---|
| CPT | 41120 | Resection is documented as less than one-half of the tongue with primary closure, meeting the full descriptor for this code without any modifier needed since no distinct additional procedure is billed. |
| PDx | C02.1 | Pathology confirms squamous cell carcinoma of the lateral border of the tongue, supporting this specific malignant neoplasm code as the principal diagnosis driving the surgical indication. |
Note
Confirm that frozen-section pathology consultation codes (e.g., 88331) are billed separately by the pathology department when performed, as these are not bundled into the surgeon’s 41120 global fee.
Example 2
Clinical Scenario:
A 64-year-old female with a 2.2 cm benign granular cell tumor of the anterior tongue undergoes partial glossectomy. During the same operative session, an incisional biopsy of a separately identified, clinically suspicious right submandibular lymph node is performed for staging purposes given uncertain preoperative imaging findings.
| Field | Code | Rationale |
|---|---|---|
| CPT 1 | 41120 | Primary procedure for the partial tongue resection, representing the majority of the operative work. |
| CPT 2 | 38500--59 | Separately identifiable lymph node biopsy at a distinct anatomic site from the tongue resection; modifier -59 supports unbundling from any NCCI edit that might otherwise bundle it with the glossectomy. |
| PDx | D10.1 | Benign neoplasm of the tongue is confirmed on final pathology and serves as the principal diagnosis for the primary procedure. |
Warning
Because the lymph node biopsy is at a distinct anatomic site and performed for a separate diagnostic purpose, documentation must clearly support medical necessity for both procedures to avoid denial under NCCI bundling edits.
Example 3
Clinical Scenario:
A 70-year-old male with extensive oral leukoplakia refractory to topical therapy undergoes partial glossectomy of the affected anterior tongue segment to obtain both therapeutic excision and definitive tissue diagnosis. Pathology confirms dysplastic leukoplakia without malignancy.
| Field | Code | Rationale |
|---|---|---|
| CPT | 41120 | The resection involves a defined tongue segment rather than a superficial lesion alone, meeting the threshold for formal glossectomy coding rather than simple excision codes such as 41112. |
| PDx | K13.21 | Leukoplakia of the oral mucosa including tongue is confirmed as the underlying indication and final pathologic diagnosis. |
Global period reminder, if applicable
⚠️ Common Coding Pitfalls
- Pitfall 1: Confusing 41120 with 41130 (hemiglossectomy) — the operative note must clearly state the extent of resection as less than one-half of the tongue to support 41120 rather than the exact-half resection described by 41130.
- Pitfall 2: Reporting 41120 in addition to a separate radical neck dissection code when a combination code such as 41135 already bundles the neck dissection into the descriptor, resulting in inappropriate unbundling.
- Pitfall 3: Using 41120 for a simple lesion excision that does not involve a formal tongue-segment resection; such cases should instead be reported with 41112 or 41113 depending on subsite.
- Pitfall 4: Appending laterality modifiers -RT, -LT, or bilateral modifier -50 to this code, none of which are clinically or administratively applicable given the tongue’s midline, non-paired anatomy and the bilateral indicator of 0.
- Pitfall 5: Failing to append modifier -59 with clear supporting documentation when a truly distinct, separately identifiable procedure is performed at the same session, risking denial under NCCI bundling edits.
- Pitfall 6: Overlooking the 090-day global period when postoperative E/M services are billed without modifier -24 or -79 for care unrelated to the glossectomy, leading to inappropriate denials or overpayments upon audit.
📎 Sources
AMA CPT Professional Edition, 2026.1 CMS National Physician Fee Schedule Relative Value File, PPRRVU2026 January Release.2 CMS IPPS FY2026 Final Rule, MS-DRG Definitions Manual v43.3 CMS ICD-10-PCS Official Guidelines for Coding and Reporting, FY2026.4 CMS ICD-10-CM Official Guidelines for Coding and Reporting, FY2026.5 American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS) Clinical Coding Guidance.6 AHA Coding Clinic for ICD-10-CM/PCS, current edition.7 CMS-HCC Risk Adjustment Model, Version 28.8Sources listed above correspond to superscript citations throughout this note. Verify all Medicare payment figures against your current CMS PFS Lookup tool and applicable MAC LCD prior to claim submission. Please use the latest AAPC/AHIMA Coding Books to verify each code within this note.