Summary & Overview
HCPCS J1645: Dalteparin Sodium Injection, per 2500 IU
HCPCS Level II code J1645 denotes an injection of dalteparin sodium billed per 2500 IU, representing low-molecular-weight heparin anticoagulant therapy. This code is used across inpatient and outpatient settings for prevention and treatment of thromboembolic events and is significant nationally due to widespread use of injectable anticoagulants in acute care, perioperative management, and ambulatory anticoagulation protocols. Understanding billing for J1645 is important for accurate drug pricing, inventory management, and clinical documentation.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of how J1645 is billed, common sites of service where dalteparin is administered, and the clinical context for its use. The publication also outlines benchmarking considerations and policy-relevant items affecting billing and coverage for injectable anticoagulants. Where input data is not provided, fields are noted as unavailable.
Billing Code Overview
HCPCS Level II code J1645 describes an injection of dalteparin sodium, billed per 2500 IU. This code represents the pharmaceutical administration of a low-molecular-weight heparin used for anticoagulation.
Service Type: Injectable medication administration (anticoagulant therapy)
Typical Site of Service: Hospital inpatient, hospital outpatient, physician office, or other ambulatory settings where injectable anticoagulant therapy is administered
Data not available in the input for associated taxonomies, ICD-10 diagnoses, related codes, and service line.
Clinical & Coding Specifications
Clinical Context
A typical outpatient or inpatient adult patient with venous thromboembolism risk or established deep vein thrombosis receives J1645 (injection, dalteparin sodium, per 2500 IU) as part of anticoagulant therapy. Example scenario: a 68-year-old patient admitted for acute lower-extremity deep vein thrombosis with recent surgery and contraindication to warfarin initiation; inpatient medication orders specify subcutaneous dalteparin 12,500 IU daily (five units of J1645) for initial therapeutic anticoagulation. The clinical workflow includes physician order entry, nurse verification of dose and vial/pen counts, confirmation of patient weight and renal function, subcutaneous administration (abdomen or lateral thigh), documentation of lot number and units administered, and coordination of discharge teaching for home injections if therapy continues outpatient. Typical site of service: inpatient acute care units, observation units, hospital outpatient infusion clinics, emergency departments for initial doses, and home health or self-administration settings for outpatient continuation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier information | Rarely used; default when no specific modifier applies |