Summary & Overview
HCPCS J1551: Injection, Immune Globulin (Cutaquig), 100 mg
HCPCS Level II code J1551 denotes an injection of immune globulin (Cutaquig), billed per 100 mg unit. This biologic drug code is important nationally because immune globulin products are used for primary and secondary immunodeficiency, autoimmune conditions, and other indications where immunomodulation or passive immunity is required. Accurate coding of J1551 affects claims processing, drug utilization reporting, and patient cost sharing for a high-cost injectable therapy.
Key payers in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise discussion of clinical context and typical sites of service, along with what to expect in payer coverage approaches and common billing considerations. The publication also outlines benchmarks and policy-related observations relevant to procurement, coding consistency, and site-of-care implications for injectable immune globulin products.
This summary is intended for billing managers, revenue cycle staff, clinicians involved in infusion services, and policy analysts seeking a national perspective on coding and payment considerations for immune globulin therapies represented by J1551.
Billing Code Overview
HCPCS Level II code J1551 describes an injection of immune globulin (Cutaquig), 100 mg. This code represents administration of a subcutaneous or intravenous immune globulin product with the drug packaged in 100 mg units. The service type is a drug administration / injectable biologic.
The typical site of service for J1551 is outpatient clinical settings where biologic infusions or subcutaneous injections are performed, including physician offices, infusion centers, and outpatient hospital departments. Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with primary or secondary immunodeficiency or immune thrombocytopenic purpura receiving replacement or immunomodulatory therapy with subcutaneous immune globulin product J1551 (Injection, immune globulin (cutaquig), 100 mg). The service is usually delivered in an outpatient infusion center, physician office, or patient home under nursing supervision. Clinical workflow: the prescriber documents indication, dose (calculated by weight and indication), and frequency in the medical record; pharmacy dispenses J1551 in the required milligram amount; a registered nurse verifies patient identity, reviews allergies, obtains baseline vital signs, and prepares the subcutaneous infusion site(s). The nurse administers the product subcutaneously using pump or gravity infusion, monitors for infusion-related reactions throughout and for a short period after completion, documents lot number and units administered, and provides patient education on expected adverse effects and follow-up. Billing includes the HCPCS code J1551 reported per 100 mg of product, any applicable drug units, and relevant modifiers for payer processing and clinical circumstances.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 |