Summary & Overview
HCPCS C9479: Ciprofloxacin Otic Instillation, 6 mg
HCPCS Level II code C9479 denotes the instillation of ciprofloxacin otic suspension, 6 mg, a topical antibiotic delivery for ear infections and related otic conditions. Nationally, this code matters for billing of procedural medication administration distinct from prescription dispensing and can affect outpatient revenue capture, coding consistency, and payer coverage determinations. 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 when C9479 is used, summaries of payer coverage considerations, common billing and service-line implications for ambulatory and outpatient settings, and benchmarks or policy notes where available. The publication highlights practical coding context — including service type, typical sites of service, and how this HCPCS Level II code differs from pharmacy-dispensed medication charges. Data not available in the input is noted where applicable. This resource is intended to help coding professionals, practice administrators, and revenue-cycle stakeholders understand the scope and documentation considerations tied to C9479 and how it interfaces with national payer policies and outpatient service lines.
Billing Code Overview
HCPCS Level II code C9479 represents the instillation of ciprofloxacin otic suspension, 6 mg. This code is used for the administration of a topical antibiotic into the ear canal to treat or manage otic infections.
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Service type: Instillation (topical otic medication administration)
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Typical site of service: Ambulatory clinics, physician offices, urgent care centers, and outpatient specialty clinics where otic medication is administered directly to the patient
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult or pediatric patient presenting to an outpatient otolaryngology clinic, urgent care center, or primary care office with signs and symptoms of acute otitis externa or bacterial otitis media where topical antibiotic therapy is indicated. The clinician performs an ear exam with otoscopy; if the tympanic membrane is intact or a topical otic agent is otherwise appropriate (for example, canal infection/otitis externa), the provider prescribes or directly instills C9479 (instillation, ciprofloxacin otic suspension, 6 mg) into the external auditory canal. The clinical workflow includes patient assessment, otoscopic confirmation of diagnosis, cleansing of the canal if needed (aural toilet), instillation of the prescribed dose, patient education about dosing frequency and ear precautions, and documentation of medication, dose, laterality, and condition. Follow-up instructions and reevaluation are provided if symptoms persist or worsen within 48–72 hours.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | Use when medication is instilled into the left ear only |
RT | Right side |