Summary & Overview
CPT 31243: Endoscopic Cryoablation of Posterior Nasal Nerve
CPT code 31243 denotes endoscopic cryoablation of the posterior nasal nerve — a targeted, minimally invasive procedure used to reduce chronic nasal symptoms by freezing nerve tissue. Nationally, this code represents an emerging option in otolaryngology for patients with refractory rhinologic complaints and has implications for outpatient procedural volumes, coding accuracy, and payer coverage policies.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a concise overview of coverage patterns and what organizations typically review when authorizing this procedure.
Readers will learn the clinical context of the procedure, typical sites of service, and operational considerations for coding and billing. The piece summarizes benchmarks used by major payers, notes common documentation elements that support medical necessity determinations, and highlights recent policy developments affecting outpatient procedural authorization and reimbursement. Data not available in the input are noted where applicable. The goal is to help clinicians, billing staff, and policy professionals understand how CPT code 31243 is used and evaluated across major national payers.
Billing Code Overview
CPT code 31243 describes the insertion of an endoscope into the nose with cryoablation of the posterior nasal nerve. This procedure is a minimally invasive, endoscopic technique that uses controlled freezing to ablate neural tissue implicated in chronic nasal symptoms.
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Service type: Endoscopic nasal cryoablation procedure
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Typical site of service: Ambulatory surgery center or hospital outpatient department; may also be performed in a properly equipped office-based surgical setting
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with chronic rhinitis or refractory nasal hyperreactivity causing persistent posterior nasal drainage, nasal congestion, and rhinorrhea despite optimized medical therapy (intranasal antihistamines, topical corticosteroids, anticholinergic sprays, and/or oral therapies). The patient presents to an otolaryngology (ENT) clinic for evaluation. After history and nasal endoscopy confirm posterior nasal nerve–mediated symptoms, the provider schedules an in-office or ambulatory cryoablation procedure. The workflow includes pre-procedure counseling and consent, topical and/or local anesthesia (or monitored anesthesia care for patient comfort), endoscopic transnasal insertion of the cryotherapy device, targeted cryoablation of the posterior nasal nerve region bilaterally or unilaterally as indicated, brief observation for immediate complications (epistaxis, syncope, or anesthetic reaction), and discharge with post-procedure instructions and follow-up to assess symptom improvement and potential repeat treatment needs. Typical sites of service are the physician office, ambulatory surgical center, or hospital outpatient department depending on patient comorbidities and payer requirements.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Standard primary procedure indicator (no modifier) | Use when no additional modifier is required; represents the primary billed procedure. |