Summary & Overview

CPT 69805: Endolymphatic Sac Decompression and Drainage

CPT code 69805 denotes an otologic surgical procedure to open and drain the endolymphatic sac without inserting a shunt for ongoing pressure relief. The procedure is a targeted surgical intervention for patients with symptomatic endolymphatic hydrops or Meniere-like presentations when decompression is indicated. Nationally, this code represents a specialized surgical service performed by otolaryngology/head and neck surgery specialists in operative settings and affects coverage, authorization, and reimbursement decisions across major payers.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, expected sites of service, and the types of benchmarks and policy considerations typically associated with surgical otologic codes. The publication outlines common payer coverage patterns, procedural benchmarks, and administrative factors relevant for coding, claims submission, and utilization management. It also summarizes where to expect variability in authorization requirements and potential policy updates that influence claim adjudication. Data not available in the input will be explicitly noted in supplemental sections.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 69805endolymphatic sac decompressionotologic surgeryENT surgeryambulatory surgerysurgical procedure codingprocedure reimbursementmedical billingoperating room services

Billing Code Overview

CPT code 69805 describes a surgical procedure to open and drain the endolymphatic sac without placement of a shunt for ongoing pressure relief. This operation addresses endolymphatic hydrops-related inner ear fluid pressure by creating a decompressive opening in the endolymphatic sac to relieve vestibular symptoms.

Service type: Surgical otologic procedure
Typical site of service: Hospital operating room or ambulatory surgery center

Clinical & Coding Specifications

Clinical Context

A 42-year-old patient presents with progressive unilateral sensorineural hearing loss, episodic vertigo, and intermittent tinnitus consistent with endolymphatic hydrops (Meniere disease). After conservative management (dietary sodium restriction, diuretics, vestibular suppressants) and intratympanic corticosteroid injections fail to control vertigo, the otologist recommends a surgical procedure to decompress the endolymphatic sac. The patient is admitted to an ambulatory surgery center or hospital outpatient department. Under general anesthesia or monitored anesthesia care, the surgeon exposes the mastoid cortex via a postauricular incision, performs a mastoidectomy to identify the endolymphatic sac, opens and drains the sac to relieve endolymphatic pressure, and achieves hemostasis. No indwelling shunt or permanent drainage device is placed during this operation. Typical perioperative documentation includes preoperative diagnosis (e.g., Meniere disease), informed consent, operative note describing sac decompression without shunt placement, estimated blood loss, anesthesia type, and postoperative instructions. Billing uses 69805 for the sac decompression without placement of a shunt. Typical sites of service are the ambulatory surgery center, hospital outpatient department, or inpatient otologic surgical suite when indicated by comorbidity. Common clinical workflow steps: preop evaluation by otolaryngology, anesthesia assessment, operative procedure with microscope or endoscope, immediate postoperative recovery with vestibular monitoring, and short-term otology follow-up for hearing and vertigo assessment.

Coding Specifications

Modifier	Description	When to Use

Taxonomy Code	Specialty	Notes
207W00000X	Otolaryngology (ENT)	Primary specialty performing endolymphatic sac surgery.
2080P0207X	Otology/Neurotology	Subspecialists often perform complex inner ear procedures.
208100000X	Neurotology	Focused on temporal bone and cochlear/vestibular surgery; commonly involved.
207L00000X	Head and Neck Surgery	Some head and neck surgeons with otologic training may perform this procedure.

CPT Code	Description	Relationship to This Procedure
`69510`	Mastoidectomy, simple (eg, for drainage), with or without tympanostomy tube	Performed to access the mastoid and identify the endolymphatic sac during decompression when a simple mastoidectomy is required.
`69600`	Tympanoplasty with mastoidectomy when performed	May be performed concurrently if middle ear repair or tympanic membrane work is required in the same operative setting.
`69990`	Unlisted procedure, nervous system	Use only for unusual or adjunctive otologic procedures not covered by specific codes; rarely used in addition to `69805`.
`99100`	Anesthesia for patient of extreme age, under 1 year or over 70 years	An example of anesthesia CPT category used when anesthesia billing is required; anesthesia services are billed separately.
`69990`	(Duplicate entry avoided)

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