Summary & Overview

CPT 32664: Thoracoscopic Sympathectomy for Hyperhidrosis

CPT code 32664 designates a thoracoscopic sympathectomy: a minimally invasive, endoscope-assisted procedure to destroy part of the sympathetic nerve trunk in the chest, most often used to treat hyperhidrosis. Nationally, this code represents a surgical treatment option with implications for surgical practice patterns, facility utilization, and payer coverage decisions for a quality-of-life–driven indication.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines how CPT code 32664 is billed and used across hospital operating rooms and ambulatory surgical centers, and what clinicians and billing professionals should expect when coding for thoracoscopic sympathectomy procedures.

Readers will find clinical context about the procedure, typical sites of service, and a concise review of payer coverage considerations and common modifier use. The report also summarizes benchmarks and policy updates relevant to minimally invasive thoracic sympathetic procedures, along with practical coding notes and typical service-line implications for surgical and thoracic specialties.

Data not available in the input is noted where applicable; the focus remains on national applicability rather than state-specific policy.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 32664thoracoscopic sympathectomythoracic surgeryhyperhidrosisminimally invasive surgeryprocedure codingsurgical billingambulatory surgery centerhospital operating room

Billing Code Overview

CPT code 32664 describes a thoracoscopic sympathectomy, a surgical procedure in which a provider uses an endoscope to visualize the pleura and lungs and destroy a portion of the sympathetic nerve trunk in the chest. The procedure is commonly performed to treat hyperhidrosis (excessive sweating) by interrupting sympathetic nerve signaling to the upper body.

Service Type: Surgical, thoracoscopic sympathectomy

Typical Site of Service: Hospital operating room or ambulatory surgical center with thoracoscopic capability

Clinical & Coding Specifications

Clinical Context

A 28-year-old patient with severe, focal palmar hyperhidrosis refractory to topical treatments and iontophoresis is referred for surgical management. After multidisciplinary evaluation and informed consent, the patient is scheduled for a thoracoscopic sympathectomy. On the day of service the patient presents to the ambulatory surgery center; anesthesia performs general endotracheal anesthesia and single-lung ventilation is instituted. The thoracic surgeon creates small thoracic port sites, introduces a thoracoscope, visually inspects the pleura and lung, locates the thoracic sympathetic chain, and performs targeted destruction (resection, clipping, or cauterization) of the sympathetic trunk at the designated levels (typically T2–T3) to reduce sympathetic outflow responsible for excessive sweating. Hemostasis is confirmed, ports are removed, and a small chest drain may be left if indicated. The patient is recovered in the PACU, evaluated for complications (pneumothorax, bleeding, nerve injury), and typically discharged the same day with postoperative activity and wound care instructions and scheduled follow-up to assess symptom relief and potential compensatory hyperhidrosis.

Coding Specifications

Modifier	Description	When to Use
`11`	Normal, uncomplicated procedure	Use when the procedure is performed as planned without complications.
`22`	Increased procedural services	Use when documentation supports substantially greater effort or time than usual (extensive adhesiolysis, prolonged operative time).
`52`	Reduced services	Use when the procedure is partially performed or significantly abbreviated.
`53`	Discontinued procedure	Use when the procedure is started but terminated due to unavoidable patient-related or technical circumstances.
`58`	Staged or related procedure by same physician during postoperative period	Use when the sympathectomy is part of a planned staged approach performed during global period.
`59`	Distinct procedural service	Use to indicate a separate, distinct service when another procedure is billed on the same day and documentation supports different anatomic site or separate incision.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing portions of the procedure.
`78`	Return to OR for related procedure during postoperative period	Use when patient returns to the operating room for a complication related to the initial sympathectomy.
`80`	Assistant surgeon	Use when an assistant surgeon performs part of the procedure and billing for an assistant is appropriate.
`81`	Minimum assistant surgeon	Use when a minimal assistant role is documented and payer allows the lesser assistant fee.
`AS`	Ambulatory surgical center facility	Use to indicate the facility setting is an ambulatory surgical center when required by payer.
`LT`	Left side	Use to indicate the procedure was performed on the left side.
`RT`	Right side	Use to indicate the procedure was performed on the right side.
`QK`	Medical direction of two to four concurrent anesthesia cases	Use when the anesthesiologist medically directs concurrent cases, as relevant to anesthesia billing.

Taxonomy Code	Specialty	Notes
207T00000X	Thoracic Surgery	Thoracic surgeons commonly perform thoracoscopic sympathectomy.
2080P0200X	General Surgery	General surgeons with thoracic training perform minimally invasive thoracic procedures.
207L00000X	Cardiothoracic Surgery	Cardiothoracic surgeons perform sympathectomy for hyperhidrosis and other indications.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`R61`	Hyperhidrosis	Primary diagnosis for which thoracoscopic sympathectomy is commonly performed to reduce excessive sweating.
`L74.0`	Hyperhidrosis, unspecified	Alternative code denoting hyperhidrosis when anatomical specificity is not provided; relevant for procedure indication.
`G90.8`	Other disorders of the autonomic nervous system	Used when autonomic dysfunction contributes to hyperhidrosis and sympathectomy targets sympathetic pathways.
`I95.9`	Hypotension, unspecified	Important to document perioperative orthostatic or autonomic instability that may influence perioperative management.
`R07.9`	Chest pain, unspecified	Symptom code that may be used if preoperative evaluation documents chest symptoms requiring thoracic assessment.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`31622`	Bronchoscopy, rigid or flexible, diagnostic, including fluoroscopic guidance, when performed	May be performed preoperatively for airway evaluation or concurrently if intrathoracic assessment is required.
`32551`	Tube thoracostomy, includes water seal (eg, for pneumothorax)	May be performed if postoperative pneumothorax requires chest tube placement following thoracoscopy.
`32601`	Thoracoscopy, diagnostic, with or without pleural biopsy, with or without removal of foreign body or fragment; with insertion of chest tube	Codes for diagnostic thoracoscopic procedures that may be performed in conjunction with sympathectomy if pleural inspection and biopsy are required.
`99223`	Initial hospital care, typically 70 minutes or more	Represents a typical level of initial inpatient care if postoperative admission is required; applicable to preoperative or postoperative evaluation.
`99100`	Anesthesia for thoracic procedures requiring single-lung ventilation	Represents anesthesia-related services commonly reported with thoracoscopic sympathectomy when single-lung ventilation is utilized.