Summary & Overview
CPT 0978T: Submucosal Cryolysis of Soft Palate and Base of Tongue
CPT code 0978T defines submucosal cryolysis therapy targeting the soft palate, base of tongue, and lingual tonsil to reduce excess tissue and improve upper airway airflow. As a novel, procedure-based airway tissue reduction technique, it is relevant to otolaryngology and sleep medicine settings and may affect coverage policies and outpatient procedural utilization nationally.
Key payers included in this discussion are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines how the code is used clinically, typical sites of service (ambulatory surgical centers and hospital outpatient departments), and common billing practices associated with procedural airway interventions.
Readers will find: an overview of clinical context and intended therapeutic goal; benchmarks and utilization considerations where available; considerations payers commonly apply for emerging airway procedures; and a summary of coding and billing implications for procedure-based otolaryngology services. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 0978T describes submucosal cryolysis therapy applied to the soft palate, base of tongue, and lingual tonsil to shrink and modify tissue and improve airflow. This procedure uses extreme cold delivered submucosally to reduce excess tissue volume in targeted upper airway sites.
Service Type: Minimally invasive procedural therapy — upper airway tissue reduction (cryotherapy-based)
Typical Site of Service: Ambulatory surgical center or hospital outpatient department, with possible performance in specialized outpatient procedural suites for airway procedures.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting with obstructive sleep symptoms such as snoring, witnessed apneas, fragmented sleep, or daytime sleepiness attributed to redundant tissue of the soft palate, base of tongue, or lingual tonsils. Prior evaluation includes history, physical exam with airway assessment (Mallampati, tonsillar hypertrophy), and often sleep testing (home sleep apnea test or polysomnography) confirming obstructive sleep apnea (OSA) or clinically significant upper airway obstruction. Conservative measures such as positive airway pressure therapy, oral appliance therapy, and weight loss have been considered or attempted.
In the clinic workflow, the provider documents airway findings and discusses treatment options. When submucosal cryolysis therapy (0978T) is selected, informed consent is obtained. The procedure is typically performed in an outpatient ambulatory surgery center or hospital outpatient department under local anesthesia with or without monitored anesthesia care, or under general anesthesia depending on patient factors. The provider uses a cryotherapy applicator to apply controlled extreme cold submucosally to the targeted tissues (soft palate, base of tongue, lingual tonsil) to induce tissue remodeling and volume reduction. Post-procedure monitoring focuses on airway patency, pain control, bleeding, and swallowing. Follow-up visits assess symptom improvement, healing, and need for repeat treatment or adjunctive procedures.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural service | Use when the work required is substantially greater than typically required for 0978T and documentation supports the increased complexity. |
51 | Multiple procedures | Use when 0978T is billed on the same day with unrelated separate procedures by the same provider (per payer rules). |
52 | Reduced services | Use when the service is partially performed and documentation supports reduced service of 0978T. |
53 | Discontinued procedure | Use when 0978T is started but discontinued due to extenuating circumstances. |
54 | Surgical care only | Use when the surgeon provides only the operative portion and another clinician provides pre/postoperative care. |
55 | Postoperative management only | Use when the surgeon provides only postoperative management after 0978T performed by another surgeon. |
56 | Preoperative management only | Use when the surgeon provides only preoperative evaluation and management for 0978T performed by another surgeon. |
62 | Two surgeons | Use when two surgeons work together as primary surgeons performing distinct portions of the procedure. |
66 | Surgical team | Use when a surgical team performs 0978T with defined team reporting per payer policy. |
78 | Return to OR for related procedure during global period | Use when a related procedure for an unplanned complication of 0978T requires return to the operating room during the global period. |
80 | Assistant surgeon | Use when an assistant surgeon is required and documents assisting during 0978T as allowed by payer rules. |
81 | Minimum assistant surgeon | Use when a minimum assistant surgeon is used per payer policies for 0978T. |
82 | Assistant surgeon (when qualified resident not available) | Use when an assistant is required and no qualified resident is available. |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist service | Use when an advanced practice provider performs covered portions of the service as permitted by payer rules. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 208D00000X | Otolaryngology (ENT) | Primary specialty performing upper airway procedures including 0978T. |
| 207L00000X | Sleep Medicine | Physicians who evaluate OSA and determine candidacy for upper airway therapies. |
| 207K00000X | Oral and Maxillofacial Surgery | May perform airway-modifying procedures targeting base of tongue or palatal structures. |
| 111N00000X | Nurse Anesthetist | Frequently involved when monitored anesthesia care or general anesthesia is used. |
| 363A00000X | Physician Assistant | Commonly involved in perioperative and procedural support for 0978T. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
G47.33 | Obstructive sleep apnea (adult) (pediatric) | Primary indication for tissue-reducing therapies like 0978T when soft palate, base of tongue, or lingual tonsil hypertrophy contributes to airway obstruction. |
R06.83 | Snoring | Symptom that may lead to consideration of 0978T when caused by anatomic excess tissue and conservative measures fail. |
J35.2 | Hypertrophy of tonsils and adenoids | Lingual tonsil hypertrophy may be targeted with submucosal cryolysis to reduce tissue volume. |
J38.6 | Other diseases of vocal cords and larynx | Includes structural conditions in the oropharynx/larynx that may coexist and require evaluation prior to 0978T. |
K13.2 | Other diseases of tongue | Base of tongue pathology contributing to airway obstruction may be addressed with 0978T. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
31575 | Laryngoscopy, direct, with biopsy | May be used preoperatively to evaluate lesions or obtain tissue diagnosis in the upper airway prior to 0978T. |
31579 | Flexible fiberoptic laryngoscopy; diagnostic | Diagnostic endoscopic airway evaluation often performed in the clinic to evaluate base of tongue and lingual tonsil prior to 0978T. |
41899 | Unlisted procedure, dentoalveolar structures | Occasionally used for adjunctive oral cavity procedures when no specific code applies alongside 0978T (subject to payer review). |
95806 | Sleep study, unattended portable monitor, with type II-V parameters | Sleep testing used to document OSA severity and measure outcomes before and after 0978T. |
31505 | Laryngoscopy, direct, operative, with excision or biopsy | Performed when operative airway intervention or excision is required in conjunction with 0978T. |
99152 | Anesthesia for procedures on the nose, mouth, pharynx when regional anesthesia with MAC is used | Anesthesia-related code that may be reported for monitored anesthesia care during 0978T when applicable. |