Summary & Overview
HCPCS G9201: Venous Thromboembolism Prophylaxis on Admission Day
HCPCS Level II code G9201 denotes venous thromboembolism (VTE) prophylaxis given on the day of or the day after a patient's hospital admission. The code identifies a time-sensitive preventive intervention intended to reduce inpatient morbidity and mortality from deep vein thrombosis and pulmonary embolism. Nationally, accurate capture of this service is important for patient safety monitoring, quality measurement, and appropriate inpatient care documentation.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers can expect a concise review of how G9201 is defined clinically, its primary site and timing of service, and the implications for billing workflows and quality reporting. The publication highlights common benchmarking and policy considerations relevant to hospital-based VTE prophylaxis coding, and it outlines where additional payer-specific guidance may be needed.
This summary provides clinicians, coders, and policy teams with essential context about when G9201 applies, why capturing the service matters for national quality and safety programs, and what topics to pursue further—such as documentation standards, payer coverage rules, and alignment with hospital quality measures. Data not available in the input will be identified in detailed sections.
Billing Code Overview
HCPCS Level II code G9201 indicates venous thromboembolism (VTE) prophylaxis administered the day of or the day after hospital admission. This service represents delivery of a prophylactic intervention—pharmacologic or mechanical—to reduce the risk of deep vein thrombosis and pulmonary embolism in patients during the immediate peri-admission period.
Service type: Preventive inpatient prophylaxis
Typical site of service: Inpatient hospital (day of or day after admission)
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult admitted to the hospital for an acute medical or surgical condition with elevated risk for venous thromboembolism (VTE). For example, a 68-year-old patient is admitted for an elective total hip arthroplasty on postoperative day 0; the admitting team documents immobility and postoperative status, and orders pharmacologic VTE prophylaxis. Nursing administers the first dose of a low‑molecular‑weight heparin in the hospital on the day of admission. Clinical workflow includes admission assessment (VTE risk and bleeding risk), entry of the VTE prophylaxis order in the electronic health record, medication administration by nursing either the day of or the day after admission, and documentation of dose, route, and timing in the medication administration record. This HCPCS Level II code G9201 is used to capture the delivery of VTE prophylaxis occurring the day of or the day after hospital admission as part of inpatient quality and billing reporting processes.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure | Use when an E/M service beyond typical preoperative or postoperative care is performed and documented on the day VTE prophylaxis is administered |
59 | Distinct procedural service | Use when another procedural service on the same day is unrelated and separate from the VTE prophylaxis administration