HCPCS Level II code S9368 represents a per diem home infusion therapy service for total parenteral nutrition (TPN) exceeding three liters per day, bundling administrative and professional pharmacy services, care coordination, and routine supplies and equipment. This code is significant nationally as home-based TPN supports medically complex patients while shifting care from inpatient settings to home, with implications for cost, access, and care coordination.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise outline of the code's clinical scope and service setting, payer coverage considerations, common billing modifiers, and areas where policy and payment guidance commonly influence claims processing. The publication also provides benchmarks and typical reimbursement context where available, highlights documentation elements that influence coverage decisions, and summarizes how S9368 interacts operationally with separately billed nursing visits and nonstandard drug components.

This overview is intended for a national audience of billing professionals, home infusion providers, pharmacy services, and policy analysts seeking a clear summary of what S9368 denotes, which services it bundles, and the practical billing distinctions important to claims and coverage workflows. Data not available in the input will be noted within relevant sections.