🎤 CPT 31541 — Laryngoscopy, Direct, Operative, With Excision Of Tumor And/Or Stripping Of Vocal Cords Or Epiglottis; With Operating Microscope Or Telescope
Quick Reference
wRVU: 4.41 | Global Period: 090 | Assistant Payable: No | Bilateral Indicator: 2 Rule: CPT 31541 carries a full 90-day global surgical package, unlike its sibling 31540 (same excision, no microscope). Because the descriptor already contemplates both vocal cords, most MACs treat this as inherently addressing the laryngeal structures as a unit — bilateral modifier use is payer-specific and should be confirmed before appending -50.
📋 Clinical Description
CPT 31541 describes a transoral, direct operative laryngoscopy performed with the aid of an operating microscope or rigid telescope, allowing the surgeon magnified, high-resolution visualization of the glottis and supraglottis. Through this exposure, the surgeon excises a tumor and/or strips diseased epithelium from one or both vocal cords, or from the epiglottis, using microlaryngeal instruments such as cup forceps, microscissors, or a laser handpiece introduced through a suspension laryngoscope.
This code sits between 31540 — the identical excision/stripping procedure performed without magnification — and 31545, which addresses submucosal, non-neoplastic lesions with a reconstructive local tissue flap. Where 31540 is reserved for cases in which the naked-eye view through the scope is sufficient, 31541 is reported whenever the operative note documents use of a microscope or telescope for the excision itself, not merely for diagnostic inspection.
This procedure may be performed in the following clinical contexts:
- Suspicious or biopsy-proven laryngeal malignancy — excision of a glottic or supraglottic tumor for diagnosis, staging, or definitive local control in early-stage disease.
- Chronic leukoplakia or dysplastic vocal cord lesions — stripping of premalignant mucosa to obtain a full pathologic specimen and relieve dysphonia.
- Recurrent respiratory papillomatosis — excision of exophytic papillomatous tumor burden to restore airway caliber and voice.
- Epiglottic mass or lesion causing dysphagia or airway compromise — excision under microscopic guidance to preserve underlying cartilage and adjacent mucosa.
🔬 Anatomical & Procedural Considerations
| Variant | Mechanism | Key Notes |
|---|---|---|
| Cold-instrument excision | The surgeon uses microscissors or cup forceps under microscope magnification to sharply excise the tumor or strip the affected mucosa in a single specimen when possible. | Preferred when preserving the vocal ligament and maintaining an intact specimen margin is critical for pathology; carries the lowest risk of thermal injury to the underlying lamina propria. |
| Laser-assisted excision | A CO2 or KTP laser is coupled to the microscope for precision ablation/excision of the tumor with simultaneous hemostasis. | Reduces intraoperative bleeding and improves visualization in a small airway, but thermal spread can compromise margin assessment; laser use itself does not change the CPT code selection. |
| Telescope-guided excision | A rigid 0° or 30° telescope substitutes for the operating microscope when angled visualization of the anterior commissure or subglottis is needed. | Common in patients with limited neck extension or difficult exposure; documentation should specify telescope use to justify 31541 over 31540. |
Clinical Pearl
The single coding decision point for 31541 versus 31540 is whether the operative note explicitly documents that the excision or stripping itself — not just diagnostic laryngoscopy — was performed under microscope or telescope guidance. If the note only mentions the scope for initial airway inspection and the excision was done with the naked eye through the laryngoscope, 31540 is the correct code, and appending a microscope modifier will not change that.
✅ Procedure Includes
- Suspension or direct laryngoscope placement and positioning to expose the glottis and supraglottis.
- Setup and use of the operating microscope or telescope for magnified visualization throughout the excision.
- Excision of the tumor and/or stripping of diseased mucosa from the vocal cord(s) or epiglottis.
- Hemostasis of the excision bed by cautery, laser, or topical agents.
- Routine specimen handling and submission for pathologic evaluation.
- Immediate postoperative airway assessment prior to extubation.
❌ Excludes / Do Not Report Together
| Code | Description | Relationship |
|---|---|---|
| 31540 | Laryngoscopy, direct, operative, with excision of tumor and/or stripping of vocal cords or epiglottis (no microscope/telescope) | Mutually exclusive with 31541 for the same operative session — the microscope/telescope either was or was not used for the excision; only one of the pair is reported. |
| 31536 | Laryngoscopy, direct, operative, with biopsy, with operating microscope or telescope | Bundled into 31541 when the biopsy is incidental to, and part of, the same excisional procedure at the same session; report only 31541 unless a biopsy is taken from a separate, distinct site. |
| 31545 | Laryngoscopy, direct operative, with operating microscope or telescope, submucosal removal of non-neoplastic lesion(s) of vocal cord, with mucosal flap | Distinguished by lesion type and reconstructive technique — 31545 is reserved for non-neoplastic submucosal lesions repaired with a local tissue flap, not tumor excision; the two are not reported together for the same lesion. |
| 31570 | Laryngoscopy, direct, with injection into vocal cord(s), therapeutic | Represents a separate therapeutic modality (injection augmentation); not bundled by NCCI, but rarely medically necessary at the same session as an excisional procedure on the same cord. |
Bundling Alert
Because 31541 carries a 90-day global period, any postoperative laryngoscopy, voice therapy evaluation, or follow-up office visit performed within that window for the same condition is bundled into the global fee and is not separately reportable without an appropriate modifier (-58, -78, or -79, as clinically indicated). Audit risk centers on two areas: distinguishing 31541 from 31540 without clear microscope/telescope documentation, and appending -RT/-LT or -50 without payer-specific policy support, since several MACs consider the laryngeal structures a single anatomic unit for this code family.
🌳 Code Tree — Surgery: Respiratory System, Larynx (Endoscopy)
CPT 31500-31599 Surgery: Larynx
│
├── 31530-31536 Laryngoscopy, Direct, Operative (Foreign Body/Biopsy)
│ ├── 31530 Laryngoscopy, direct, operative, with foreign body removal
│ └── 31531 Laryngoscopy, direct, operative, with foreign body removal, with operating microscope or telescope
│
├── 31535-31546 Laryngoscopy, Direct, Operative (Excision and Destruction)
│ ├── 31535 Laryngoscopy, direct, operative, with biopsy
│ ├── 31536 Laryngoscopy, direct, operative, with biopsy, with operating microscope or telescope
│ ├── 31540 Laryngoscopy, direct, operative, with excision of tumor and/or stripping of vocal cords or epiglottis
│ ├── ▶▶ 31541 ◀◀ Laryngoscopy, direct, operative, with excision of tumor and/or stripping of vocal cords or epiglottis; with operating microscope or telescope ← YOU ARE HERE (Global: 090)
│ ├── 31545 Laryngoscopy, direct operative, with operating microscope or telescope, submucosal removal of non-neoplastic lesion(s) of vocal cord, with mucosal flap (Global: 090)
│ └── 31546 Laryngoscopy, direct operative, with operating microscope or telescope, submucosal removal of non-neoplastic lesion(s) of vocal cord, with mucosal flap; with reconstruction with graft (Global: 090)
│
└── 31560-31580 Laryngoscopy, Direct, Operative (Arytenoidectomy/Fracture Reduction)
├── 31560 Laryngoscopy, direct, with arytenoidectomy
└── 31561 Laryngoscopy, direct, with arytenoidectomy, with operating microscope or telescope💰 RVU & Reimbursement Profile
| Component | Value |
|---|---|
| Work RVU | 4.41 |
| Global Period | 090 |
| Bilateral Indicator | 2 — the descriptor already encompasses the vocal cords as a unit; the 150% bilateral payment adjustment does not apply, and -50 use is payer-specific |
| Assistant Surgeon | 0 — generally not separately payable for this endoscopic procedure |
| Co-Surgeon | 0 — not typically supported; a single surgeon performs the excision |
| Team Surgery | 0 — not applicable to this endoscopic procedure |
| PC/TC Split | 0 — physician-service-only code; the professional/technical component concept does not apply |
| Modifier -51 Exempt | No — subject to multiple-procedure reduction when billed with other same-session surgical codes |
| Anesthesia | Typically general anesthesia with a shared airway; anesthesia crosswalks to CPT 00320 or 00326 depending on patient age and airway risk |
Bilateral Billing Rules
Most MACs, including Noridian, treat 31541 as addressing the laryngeal structures collectively rather than as a paired-organ procedure, so routine use of modifier -50 is not universally recognized. When a payer’s policy does support bilateral reporting for genuinely bilateral, separately excised vocal cord lesions, -RT/-LT on two line items (rather than -50) is often the safer default — confirm with the specific payer’s laryngoscopy policy before submission.
🏷️ Modifier Reference
| Modifier | Name | When to Apply |
|---|---|---|
| -RT | Right Side | Append when the excision/stripping is limited to the right vocal cord and the payer recognizes laterality reporting for this code. |
| -LT | Left Side | Append when the excision/stripping is limited to the left vocal cord and the payer recognizes laterality reporting for this code. |
| -50 | Bilateral | Use only where payer policy explicitly supports bilateral reporting for 31541; many MACs do not recognize this as a bilateral-eligible code given the descriptor’s scope. |
| -22 | Increased Procedural Services | Append when documentation supports substantially greater work than typical, such as an unusually extensive tumor requiring prolonged excision time. |
| -51 | Multiple Procedures | Append when 31541 is reported with other separately identifiable surgical procedures performed at the same operative session. |
| -59 | Distinct Service | Append when a second, distinct procedure is performed on a different anatomic site within the larynx during the same session and is not otherwise bundled. |
| -52 | Reduced Services | Append when the excision is intentionally abbreviated relative to the full descriptor, such as a partial excision due to patient tolerance or bleeding risk. |
| -53 | Discontinued Procedure | Append when the procedure is started but terminated early due to extenuating circumstances threatening patient well-being, such as airway compromise. |
| -58 | Staged | Append for a planned, staged excision performed in a later session within the same global period as a related earlier procedure. |
| -78 | Return to OR | Append for an unplanned return to the operating room during the global period for a complication of the original excision, such as bleeding. |
| -79 | Unrelated Procedure | Append when an unrelated laryngeal or airway procedure is performed on the same patient during the global period of the original 31541. |
🩺 Common ICD-10-CM Pairings
Primary Diagnosis Group
| ICD-10 | Description | HCC? | Notes |
|---|---|---|---|
| C32.0 | Malignant neoplasm of glottis | ✅ Yes | Supports 31541 when the operative note documents excision of a glottic tumor under microscope or telescope guidance for diagnosis or local control. |
| C32.1 | Malignant neoplasm of supraglottis | ✅ Yes | Applies when the excised tumor is located above the true vocal cords rather than on the glottis itself. |
| D14.1 | Benign neoplasm of larynx | ❌ No | Common pairing for papilloma, granuloma, or other benign laryngeal masses excised via this approach. |
| D02.0 | Carcinoma in situ of larynx | ❌ No | Pairs with excisional biopsy/stripping performed to obtain a full-thickness specimen for staging premalignant disease. |
| J38.1 | Polyp of vocal cord and larynx | ❌ No | Appropriate when the excised lesion is a benign vocal cord polyp rather than a neoplasm, provided microscope/telescope use is documented. |
Secondary Group
| ICD-10 | Description | HCC? | Notes |
|---|---|---|---|
| R49.0 | Dysphonia | ❌ No | Reported as a secondary symptom diagnosis supporting medical necessity for the excision when voice change is the presenting complaint. |
| R13.10 | Dysphagia, unspecified | ❌ No | Supports medical necessity when an epiglottic or supraglottic mass is causing swallowing difficulty. |
Etiology / Complication
| ICD-10 | Description | HCC? | Notes |
|---|---|---|---|
| Z85.21 | Personal history of malignant neoplasm of larynx | ❌ No | Reported at surveillance excisions performed to evaluate for recurrence after prior laryngeal cancer treatment. |
| J38.7 | Other diseases of larynx | ❌ No | Used for post-inflammatory or structural laryngeal changes contributing to the lesion requiring excision. |
Coding Specificity Reminder
Always code to the highest level of specificity the operative and pathology reports support — distinguish glottic from supraglottic malignancy, and confirm whether a lesion is neoplastic (supporting 31541) versus a non-neoplastic submucosal process (which redirects to 31545/31546). Avoid defaulting to an unspecified larynx code when the operative note documents a specific subsite.
🏥 MS-DRG Considerations
When 31541 is performed during an inpatient admission — most often as part of a broader head and neck surgical episode rather than as a standalone reason for admission — it groups as an OR procedure to MS-DRGs 129-131 (Major Head and Neck Procedures, with or without CC/MCC), with final DRG assignment driven by the admitting diagnosis and any concurrent procedures rather than 31541 alone. There is no CMS National Coverage Determination specific to this code; coverage is governed by Noridian’s (JE/JF) general surgical and anesthesia Local Coverage framework, which requires documentation establishing medical necessity for excision of a visualized laryngeal lesion rather than a laryngoscopy-specific LCD. Confirm current NCD/LCD status directly on the Medicare Coverage Database before finalizing high-dollar or complex claims.
🔧 ICD-10-PCS Equivalents
| PCS Code | Full Description | Modality |
|---|---|---|
| 0CBT8ZZ | Excision of Right Vocal Cord, Via Natural or Artificial Opening Endoscopic | Endoscopic (transoral) |
| 0CBV8ZZ | Excision of Left Vocal Cord, Via Natural or Artificial Opening Endoscopic | Endoscopic (transoral) |
| 0CBR8ZZ | Excision of Epiglottis, Via Natural or Artificial Opening Endoscopic | Endoscopic (transoral) |
| 0CBS8ZZ | Excision of Larynx, Via Natural or Artificial Opening Endoscopic | Endoscopic (transoral) |
PCS Character Analysis
| Position | Character | Value | Definition |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical section — covers the vast majority of operative procedures. |
| 2 | Body System | C | Mouth and Throat body system, which includes the larynx, vocal cords, and epiglottis. |
| 3 | Root Operation | B | Excision — cutting out a portion of a body part without replacement, matching the CPT descriptor’s excisional intent. |
| 4 | Body Part | T / V / R / S | Right Vocal Cord, Left Vocal Cord, Epiglottis, or Larynx, selected based on the specific structure documented as excised. |
| 5 | Approach | 8 | Via Natural or Artificial Opening Endoscopic — reflects the transoral, scope-guided access used for this procedure. |
| 6 | Device | Z | No device left in place at the conclusion of the excision. |
| 7 | Qualifier | Z | No qualifier applicable to a straightforward excisional procedure. |
Root Operation Comparison
- Excision (B) removes only a portion of the body part, which fits tumor excision or mucosal stripping — the correct root operation for 31541 in nearly all cases.
- Destruction (5) would instead apply if the entire lesion were eradicated in place by an energy source (e.g., laser ablation) with no tissue removed for pathology, which is a different clinical scenario than excision with specimen retrieval.
- Resection (T) would apply only if an entire body part, such as the whole larynx, were removed — not applicable to this focused excisional procedure.
📝 Coding Examples
Example 1
Clinical Scenario: A 61-year-old male with three months of progressive hoarseness undergoes suspension microlaryngoscopy. Using the operating microscope, the surgeon identifies a 1.2 cm exophytic lesion on the right true vocal cord and excises it completely with cup forceps, obtaining a clean margin. The specimen is sent for permanent pathology, which later confirms carcinoma in situ.
| Field | Code | Rationale |
|---|---|---|
| CPT | 31541--RT | Excision performed under operating microscope, limited to the right vocal cord, supporting laterality reporting where payer policy allows. |
| PDx | D02.0 | Confirmed pathology of carcinoma in situ of the larynx drives the primary diagnosis once results are finalized. |
Note
If pathology had returned invasive carcinoma rather than carcinoma in situ, the diagnosis would shift to the appropriate C32 subsite code, and the case may warrant re-review for additional staging procedures.
Example 2
Clinical Scenario: A 45-year-old female with recurrent respiratory papillomatosis presents for scheduled debulking. Under telescope guidance, the surgeon excises papillomatous tumor from both the anterior right vocal cord and a separate lesion on the epiglottis in the same operative session, using distinct excisional passes for each site.
| Field | Code | Rationale |
|---|---|---|
| CPT 1 | 31541 | Primary excision of the vocal cord tumor under telescope guidance. |
| CPT 2 | 31541--59 | Second, distinct excision of a separate epiglottic lesion in the same session, modifier appended to indicate a distinct procedural service at a separate anatomic site. |
| PDx | D14.1 | Benign neoplasm of the larynx reflects the papillomatosis diagnosis. |
Warning
Reporting 31541 twice for what payers may interpret as a single continuous excision of contiguous disease risks a bundling denial; documentation must clearly delineate two anatomically and procedurally distinct excisions to support the second unit.
Example 3
Clinical Scenario: A 58-year-old male returns to the OR eight days after an initial 31541 procedure with acute bleeding from the excision bed, requiring emergent suspension laryngoscopy and cauterization to achieve hemostasis.
| Field | Code | Rationale |
|---|---|---|
| CPT | 31541--78 | Unplanned return to the operating room during the 90-day global period for a complication of the original excision. |
| PDx | C32.0 | Underlying glottic malignancy remains the driving diagnosis for the encounter, with the bleeding coded as an additional secondary diagnosis. |
Global period reminder, if applicable
⚠️ Common Coding Pitfalls
- Pitfall 1: Defaulting to 31541 whenever a microscope is mentioned anywhere in the operative note, even if it was used only for diagnostic inspection rather than the excision itself — this misapplication should instead map to 31540 when the excision was performed without magnification.
- Pitfall 2: Appending modifier -50 as a routine practice for any vocal cord procedure without first checking payer-specific policy, since several MACs treat the laryngeal structures as a single reportable unit for this code family.
- Pitfall 3: Reporting a biopsy code such as 31536 in addition to 31541 for the same lesion at the same session, when the biopsy was incidental to and bundled within the excisional procedure.
- Pitfall 4: Failing to append -58, -78, or -79 for related or unrelated procedures performed within the 90-day global period, resulting in denied claims that should have been separately payable with the correct modifier.
- Pitfall 5: Coding the ICD-10-CM diagnosis to an unspecified larynx code when the pathology report clearly documents a specific glottic or supraglottic subsite, reducing coding specificity and potentially affecting HCC capture.
- Pitfall 6: Choosing 31541 over 31545/31546 for a **non-neoplastic submucosal lesion repaired with a mucosal flap, when the correct code family depends on both the lesion’s neoplastic status and the reconstructive technique used.
📎 Sources
1. American Medical Association. *CPT 2026 Professional Edition.* AMA Press; 2026. 2. Centers for Medicare & Medicaid Services. *Physician Fee Schedule Look-Up Tool.* CMS.gov; 2026. https://www.cms.gov/medicare/physician-fee-schedule/search 3. Centers for Medicare & Medicaid Services. *ICD-10-CM/PCS MS-DRG Definitions Manual.* CMS.gov; 2026. 4. Centers for Medicare & Medicaid Services. *Medicare Coverage Database (NCD/LCD).* CMS.gov; 2026. 5. AAPC Codify. *CPT Code 31541 Reference.* AAPC; 2026.Sources 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.