Summary & Overview
HCPCS S9370: Home Intermittent Anti-Emetic Injection Therapy, Per Diem
HCPCS Level II code S9370 covers per diem administrative and professional pharmacy services, care coordination, and supplies and equipment associated with home-based intermittent anti-emetic injection therapy, with drugs and nursing visits billed separately. This code matters nationally as home infusion and supportive therapies expand for symptom management in oncology, palliative care, and other outpatient settings, affecting reimbursement workflows and care coordination across payers. Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of what S9370 represents, the clinical and operational contexts for home intermittent anti-emetic injections, and what to watch for in payer coverage patterns and billing practice. The publication summarizes common modifiers and implementation considerations, highlights typical sites of service and service components, and identifies gaps where input data is not available. It also outlines implications for claims processing and documentation requirements tied to per diem administrative and pharmacy services. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code S9370 describes home therapy, intermittent anti-emetic injection therapy; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem. The primary service type is home-based supportive infusion/medication administration focused on intermittent anti-emetic injections. The typical site of service is the patients home, delivered through home health or home infusion programs. Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult oncology patient receiving outpatient home-based intermittent anti-emetic injection therapy to manage chemotherapy- or radiotherapy-induced nausea and vomiting. The patient has a prescription for parenteral anti-emetic medication administered intermittently in the home setting by a licensed infusion nurse or by a trained caregiver under professional pharmacy and care coordination oversight. Administrative services include pharmacy dispensing, coordination of nursing visits, scheduling, and supply delivery. Drugs and nursing visits are billed separately; S9370 represents the per diem administrative and professional pharmacy services for home intermittent anti-emetic injection therapy. Typical workflow: referral from oncology clinic to home infusion provider, prior authorization and medication preparation by pharmacy, scheduling of nurse visit(s), nurse arrives at patient home, documents pre‑administration assessment and administers anti-emetic injection, documents response and communicates with ordering clinician, and pharmacy handles medication reconciliation, return/ disposal of controlled substances and ongoing care coordination. Typical site of service is the patient’s residence (home) or other approved non‑facility home setting.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Unmodified procedure | When no modifier is required and service is reported as standard. |