Summary & Overview
HCPCS J1670: Injection, Tetanus Immune Globulin, Human, up to 250 Units
HCPCS Level II code J1670 denotes injection of human tetanus immune globulin up to 250 units, a passive immunization used to provide immediate protection against tetanus following potential exposure. Nationally, this product is clinically important in emergency and ambulatory settings to reduce the risk of tetanus in patients with contaminated wounds or unknown immunization status. Payers commonly cover this injectable under medical benefits when clinically indicated.
This analysis covers major national payers: Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the code’s clinical role, payer coverage context, and typical sites of service. The publication presents benchmark perspectives, common billing considerations, and any recent policy notices or coding guidance when available. It also clarifies where input data were not provided.
Intended for billing managers, revenue cycle teams, and clinical leaders, the piece explains how J1670 is billed in ambulatory and emergency settings and what information payers typically require for claim adjudication. Data not available in the input are noted where applicable.
Billing Code Overview
HCPCS Level II code J1670 represents Injection, tetanus immune globulin, human, up to 250 units. This code describes the provision of human tetanus immune globulin delivered by injection for passive immunization against tetanus.
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Service type: Therapeutic injection / passive immunization
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Typical site of service: Outpatient clinic, emergency department, urgent care, or other ambulatory settings for injectable treatments
Data not available in the input for associated taxonomies, ICD-10 diagnoses, related codes, or detailed service line.
Clinical & Coding Specifications
Clinical Context
A 34-year-old adult presents to an urgent care clinic after sustaining a puncture wound from a rusty nail while gardening. The patient’s tetanus immunization history is uncertain and they have not received a tetanus toxoid-containing vaccine in the past five years. The clinician performs wound assessment, documents tetanus risk factors (e.g., contaminated wound, devitalized tissue), and determines passive immunization is indicated in addition to active immunization. Medication administration is ordered for tetanus immune globulin, human, up to 250 units (J1670). The drug is prepared by the clinic’s licensed nurse or pharmacist and administered via intramuscular injection in the deltoid or gluteal muscle depending on patient age and muscle mass. Vital signs and allergy status are confirmed before administration. The patient is observed for immediate adverse reactions for 15–30 minutes post-injection and given discharge instructions including follow-up for tetanus toxoid vaccination series and wound care. Documentation includes indication, lot number, units administered (capped at 250 units for J1670), route, site, consent, and any immediate adverse event.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Use when no modifier applies and standard billing is appropriate. |