CPT 31002 Sphenoid Sinus Irrigation Reimbursement | OpenPayer

Summary & Overview

CPT 31002: Sphenoid Sinus Irrigation with Flexible Cannula

CPT code 31002 denotes the endoscopic insertion of a flexible cannula to irrigate the sphenoid sinus. This targeted irrigation procedure is used to clear secretions, debris, or infected material from the sphenoid sinus and is part of otolaryngology procedural care for sinus disease. Nationally, CPT 31002 is relevant for surgical outpatient workflows, procedural coding accuracy, and payer coverage determinations affecting access to endoscopic sinus interventions.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, common billing considerations, and coverage landscape across major national payers. The publication outlines typical sites of service and service-line implications for ambulatory surgical centers and hospital outpatient settings.

This summary prepares clinicians, billing professionals, and policy analysts to understand where CPT code 31002 fits within sinus procedural coding, how it is used in practice, and what elements are pertinent when reviewing payer coverage and claims processing. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 31002endoscopic sinus proceduresphenoid sinus irrigationotolaryngologysurgical codingambulatory surgeryprocedure codingENT proceduressinus irrigation

Billing Code Overview

CPT code 31002 describes the insertion of a flexible cannula to irrigate (wash out) the contents of the sphenoid sinus. This procedure is an endoscopic sinus irrigation technique focused on the sphenoid sinus to remove mucus, pus, or debris.

Service type: Endoscopic nasal/sinus irrigation procedure
Typical site of service: Ambulatory surgical center or hospital outpatient setting, often performed in an operating room or procedure suite under endoscopic guidance

Clinical & Coding Specifications

Clinical Context

A typical patient is a 35–60-year-old adult presenting to an otolaryngology clinic or ambulatory surgery center with acute or chronic sphenoid sinus disease characterized by deep-seated facial/retro-orbital pain, persistent purulent drainage, or failure of medical therapy (oral antibiotics and topical steroid nasal irrigations). Imaging (CT sinus) demonstrates mucosal thickening or opacification isolated to the sphenoid sinus. After failed medical therapy or when diagnostic/therapeutic lavage is indicated, the provider performs a transnasal endoscopic sphenoid sinus washout using a flexible cannula to irrigate and remove inspissated secretions under endoscopic visualization.

Typical workflow: pre-procedure evaluation and informed consent in clinic; peri-procedural topical decongestant and local anesthetic or monitored anesthesia care/general anesthesia depending on patient comfort and comorbidities; endoscopic transnasal approach to the sphenoid ostium; insertion of a flexible cannula into the sphenoid sinus and controlled irrigation/aspiration to wash the sinus cavity; specimen collection for culture if indicated; hemostasis and postoperative instructions with topical nasal care and possible antibiotic therapy. Usual sites of service include the ambulatory surgical center, hospital operating room, or clinic procedure room depending on anesthesia level and complexity. This procedure is represented by 31002.

Coding Specifications

Modifier	Description	When to Use
`22`

CPT 31030: Maxillary Antrum Mucosal Removal with Nasoantral Window

CPT-31032-MAXILLARY-ANTROSTOMY-POLYPECTOMY

CPT 31032: Maxillary Antrostomy with Polypectomy

CPT-31020-MIDDLE-MEATAL-SINUSOTOMY-INTRANASAL-SINUSOTOMY

CPT 31020: Middle Meatal Sinusotomy, Intranasal Approach

CPT-31084-FRONTAL-SINUS-OBLITERATION-OPEN-FRONTAL-SINUS-SURGERY

CPT 31084: Frontal Sinus Obliteration, Open Frontal Sinus Surgery

CPT-31081-FRONTAL-SINUS-OBLITERATION-CORONAL-INCISION

CPT 31081: Frontal Sinus Obliteration via Coronal Incision

CPT-31087-FRONTAL-SINUS-OSTEOPLASTIC-FLAP-EXCISION

CPT 31087: Frontal Sinus Osteoplastic Flap and Excision

CPT-31051-SPHENOID-SINUS-MUCOSA-STRIPPING-POLYPECTOMY

CPT 31051: Sphenoid Sinus Incision with Mucosa Stripping/Polypectomy

CPT-31086-OSTEOPLASTIC-FRONTAL-SINUS-EXCISION

CPT 31086: Osteoplastic Frontal Sinus Excision with Bone Flap

CPT-31080-FRONTAL-SINUS-OBLITERATION-EXTERNAL-APPROACH

CPT 31080: Frontal Sinus Obliteration via External Eyebrow Incision

CPT-31000-MAXILLARY-SINUS-WASHOUT-IRRIGATION

CPT 31000: Maxillary Sinus Washout / Irrigation

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Taxonomy Code	Specialty	Notes
207Y00000X	Otolaryngology (ENT)	Primary specialty performing endoscopic sinus procedures including sphenoid washout.
2080P0207X	Facial Plastic Surgery	May perform endoscopic sinus procedures in collaboration with rhinologic indications.
163W00000X	Emergency Medicine	May perform bedside nasal/sinus irrigation in acute settings prior to ENT referral.
2084P0800X	Allergy & Immunology	May refer or co-manage patients with chronic rhinosinusitis undergoing procedural interventions.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J01.90`	Acute sinusitis, unspecified	Acute sphenoid sinus infection causing severe retro-orbital pain or purulence, often prompting washout when refractory to medical therapy.
`J32.0`	Chronic maxillary sinusitis	Chronic sinus disease that may be associated with multi-sinus involvement including sphenoid; sphenoid washout performed when sphenoid is affected.
`J32.1`	Chronic frontal sinusitis	Coexisting chronic sinus disease; sphenoid irrigation may be part of combined sinus management.
`J32.2`	Chronic ethmoidal sinusitis	Ethmoid disease frequently coexists; endoscopic evaluation and possible combined procedures accompany `31002`.
`J32.3`	Chronic sphenoid sinusitis	Primary chronic disease of the sphenoid sinus — direct indication for sphenoid washout `31002`.
`J32.8`	Other chronic sinusitis	Other chronic sinus pathology involving the sphenoid may require irrigation/washout.
`J33.0`	Nasal polyp, unspecified	Obstructing polyps can contribute to sphenoid sinus blockage; polypectomy may be performed with washout.
`R07.89`	Other chest pain (includes facial/retro-orbital pain not classified elsewhere)	Facial or retro-orbital pain referral may be a presenting symptom prompting sphenoid evaluation and washout.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`31231`	Nasal/sinus endoscopy, diagnostic, unilateral or bilateral (separate procedure)	Performed before or during to visualize sphenoid ostium and guide cannula placement for `31002`.
`31237`	Nasal/sinus endoscopy, surgical with biopsy, polypectomy or other intranasal procedures	May be performed in the same session if additional intranasal surgical procedures are required alongside `31002`.
`31276`	Endoscopic maxillary antrostomy; with ethmoidectomy, total	Performed when disease extends beyond the sphenoid and requires broader sinus surgery in the same operative episode.
`30140`	Submucous resection, turbinate, partial or complete, any method	May be performed concurrently to improve access for transnasal sphenoid instrumentation.
`87535`	Infectious agent detection, culture or molecular assay (e.g., respiratory pathogen panel)	Used when specimens obtained during `31002` are sent for microbiologic testing to guide therapy.

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