Summary & Overview
HCPCS S9372: Home Anticoagulant Injection Therapy Administrative Services
HCPCS Level II code S9372 represents per diem administrative and professional pharmacy services for home-based intermittent anticoagulant injection therapy (for example, heparin), including care coordination and necessary supplies and equipment. The code separates the administrative bundle from drug and nursing visit charges, and explicitly excludes use for catheter or device flushing to maintain patency. Nationally, this code matters as home infusion and anticoagulation care continue to shift away from facility-based delivery, affecting payment configuration, care coordination workflows, and pharmacy service models.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will learn the clinical and billing context for S9372, how the service is typically delivered in the home, which components are bundled versus billed separately, and practical implications for coding and claims submission. The publication provides benchmarks where available, summarizes policy updates affecting home infusion and anticoagulation services, and outlines common billing considerations and documentation elements tied to this code. Data not available in the input will be noted as such in specific sections.
Billing Code Overview
HCPCS Level II code S9372 describes home therapy for intermittent anticoagulant injection therapy (e.g., heparin) and covers administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment billed on a per diem basis. Drugs and nursing visits are coded separately. This code is not used for flushing of infusion devices with heparin to maintain patency.
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Service type: Home-based intermittent anticoagulant injection therapy administrative and coordination services
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Typical site of service: Patient's home
Clinical & Coding Specifications
Clinical Context
A 72-year-old patient with a recent proximal deep vein thrombosis (DVT) is discharged home from the hospital requiring intermittent subcutaneous anticoagulant injections (e.g., low-molecular-weight heparin) administered via home health services. The home therapy includes administrative coordination, professional pharmacy services, patient education on injection technique, scheduling and coordination of nursing visits, and provision of necessary supplies (syringes, alcohol swabs, sharps container). Drugs (the anticoagulant medication) and nursing visits are billed separately. The typical workflow: the prescribing clinician documents the indication and duration of therapy; the pharmacy or home health agency sets up the per diem administrative service for S9372; a home health nurse or trained caregiver performs or supervises injections per the care plan; the pharmacy dispenses and bills the anticoagulant medication under its NDC/HCPCS as applicable; ongoing care coordination and documentation of adherence, injection site assessment, and monitoring for bleeding or complications occur throughout the per diem period. This code is not used for routine flushing of infusion devices with heparin to maintain patency.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when unusually high administrative or coordination effort beyond the typical per diem occurs and documentation supports increased complexity. |