HCPCS Level II code S9497 denotes per-diem home infusion therapy for antibiotic, antiviral, or antifungal treatment administered every three hours, including administrative, professional pharmacy, care coordination services, and necessary supplies and equipment (drugs and nursing visits billed separately). This code matters nationally as home infusion expands care outside hospitals, supports antimicrobial therapy continuity, and affects payer coverage, utilization management, and payment policies.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for frequent antimicrobial infusions in the home, expected billing scope tied to the per-diem administrative and pharmacy services, and where this code intersects with broader home health and infusion payment practices.

The publication provides benchmarks and policy context relevant to national payers, clarifies which elements are included in the S9497 per-diem charge versus separately billed items (drugs and nursing visits), and outlines common payer considerations affecting authorization and reimbursement. Data not available in the input for associated taxonomies, ICD-10 diagnoses, related codes, and detailed payer-specific rates.