31540 Direct Laryngoscopy CPT Reimbursement

CPT code 31540 denotes direct laryngoscopy with inspection of the larynx to identify abnormal masses, with possible stripping of vocal cord or epiglottic layers and excision of tumors. This procedure is an important surgical diagnostic and therapeutic intervention for patients with suspected laryngeal lesions, voice changes, airway compromise, or head and neck malignancy. Nationally, accurate coding of 31540 affects surgical quality measurement, reimbursement for otolaryngology services, and tracking of oncologic procedures.

Key payers considered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The content that follows outlines clinical context, typical sites of service, common procedural components, and payer coverage themes relevant to hospital and ambulatory surgical settings.

Readers will learn the clinical purpose of the code, typical service settings, and what documentation elements support correct use of 31540. The publication also summarizes benchmark topics and policy-relevant considerations for payers and providers, including how this code is used in conjunction with operative and diagnostic workflows. Data not available in the input will be noted where applicable.

Billing Code Overview

CPT code 31540 describes direct laryngoscopy with inspection of the larynx to detect an abnormal mass in the voice box. The procedure may include stripping of the outer layers of the vocal cord or epiglottis and/or excision of a tumor when indicated.

Service type: Operative diagnostic and excisional laryngoscopy of the larynx
Typical site of service: Operative suite or ambulatory surgery center (procedural setting with direct laryngoscopic access to the larynx)

Data not available in the input.

Clinical Context

A 58-year-old patient presents to an otolaryngology clinic with progressive hoarseness, intermittent throat pain, and a palpable neck mass. Flexible nasolaryngoscopy in clinic demonstrates an irregular lesion of the true vocal cord suspicious for a neoplasm. The patient is scheduled for direct laryngoscopy with tumor excision and possible vocal cord stripping under general anesthesia. The typical workflow: preoperative evaluation and informed consent in clinic, pre-op anesthesia assessment, operative direct laryngoscopy using a laryngoscope to expose the larynx, microscopic inspection of the lesion, performance of vocal cord stripping and/or excision of the tumor with cold instruments or micro-instruments, hemostasis, possible biopsy sent to pathology, postoperative recovery with voice rest instructions, and outpatient pathology review and follow-up for staging and further therapy if malignancy is confirmed.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when the procedure required substantially greater work than typical (extensive dissection, prolonged operative time) with documentation supporting increased effort.
`26`	Professional component

Taxonomy Code	Specialty	Notes
207P00000X	Otolaryngology (ENT)	Primary specialty performing direct laryngoscopy with excision/stripping.
207L00000X	Head and Neck Surgery	Surgeons focused on laryngeal tumors and oncologic resections.
208D00000X	General Surgery	May participate in airway or neck procedures in some settings.
207VP0200X	Laryngology	Subspecialty of otolaryngology concentrating on voice disorders and microlaryngeal surgery.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C32.0`	Malignant neoplasm of glottis	Primary laryngeal cancer affecting the true vocal cords; direct laryngoscopy with excision or biopsy is essential for diagnosis and treatment.
`D14.1`	Benign neoplasm of larynx	Benign laryngeal tumors (e.g., papilloma, vocal cord polyp) often require direct laryngoscopy and excision or stripping.
`J38.2`	Polyp of vocal cord and larynx	Vocal cord polyps causing hoarseness commonly managed with microlaryngoscopic excision or stripping.
`J38.0`	Hemorrhage of vocal cords	May present with symptomatic lesions requiring direct visualization and intervention.
`R49.0`	Dysphonia	Symptom code frequently associated with laryngeal lesions prompting diagnostic laryngoscopy and possible excision.
`C32.9`	Malignant neoplasm of larynx, unspecified	Used when malignancy is suspected but precise subsite not yet determined; direct laryngoscopy is necessary for site-specific diagnosis.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`31505`	Laryngoscopy, direct; diagnostic, with or without tracheobronchial visualization	Performed when a diagnostic direct laryngoscopy is done without tumor excision; may be billed for diagnostic inspection prior to definitive excision.
`31535`	Laryngoscopy, direct, with biopsy, single or multiple	Billed when biopsy specimens are obtained during direct laryngoscopy rather than complete excision. Often used when frozen section or diagnosis is needed before definitive resection.
`31541`	Laryngoscopy, direct, with excision of lesion of larynx, single lesion (may include stripping)	Closely related; represents excision of a single laryngeal lesion—used when documentation supports single lesion removal.
`31625`	Bronchoscopy, rigid or flexible, with foreign body removal	May be used if concurrent airway procedures or rigid instrumentation are required during the same anesthetic (context-specific).
`31500`	Intubation, endotracheal, emergency or elective (separate procedure)	Airway management CPT often reported in perioperative documentation when separately identifiable and not included in the primary anesthesia claim.

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Summary & Overview

CPT 31540: Direct Laryngoscopy for Laryngeal Mass Inspection and Excision