Summary & Overview
HCPCS J3411: Injection, Thiamine HCl 100 mg
HCPCS Level II code J3411 denotes an injection of thiamine hydrochloride, 100 mg, used to provide parenteral vitamin B1 when oral administration is not feasible or rapid repletion is required. This code matters nationally because thiamine injections are commonly used in acute care settings — including emergency departments and inpatient wards — for conditions such as suspected deficiency, malnutrition, or Wernicke encephalopathy, and because injectable drug coding affects facility and professional billing workflows.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of coding context, typical sites of service, and common billing practices associated with J3411. The publication summarizes available national benchmarks where present, highlights policy and coverage considerations from major payers, and outlines clinical scenarios that commonly generate use of the code.
The piece also provides practical reference material for claims teams and billing staff: service descriptors, payer coverage scope, and common modifiers used with injectable medication administration. Data not available in the input is explicitly noted where appropriate.
Billing Code Overview
HCPCS Level II code J3411 represents an injection of thiamine hydrochloride (100 mg). This service is administered as an intravenous or intramuscular medication injection intended to deliver vitamin B1 for therapeutic indications where parenteral thiamine is clinically required.
Service Type: Medication administration — injectable vitamin therapy
Typical Site of Service: Outpatient clinic, emergency department, inpatient facility, or physician office
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to an emergency department, urgent care clinic, or inpatient ward with suspected thiamine (vitamin B1) deficiency, acute alcohol intoxication at high risk for Wernicke encephalopathy, malnutrition, or refeeding syndrome. A common scenario: a patient with heavy alcohol use arrives with confusion, ataxia, and nystagmus; nursing triage orders IV thiamine while diagnostic evaluation and stabilization proceed. The clinician documents indication (e.g., suspected Wernicke encephalopathy), reviews allergies, obtains informed consent as required by local policy, and orders J3411 (Injection, thiamine HCl, 100 mg). A licensed clinician or registered nurse prepares and administers the medication per facility protocol — typically IV push, IV bolus, or added to an IV line — and documents lot number, dose, route, time, site, and patient response in the medical record. Subsequent care may include serial neurologic assessments, laboratory evaluation (electrolytes, glucose), and concurrent treatments (e.g., glucose administration if hypoglycemia, electrolyte repletion). Typical sites of service: emergency department, hospital inpatient ward, observation unit, or outpatient infusion clinic when treating clinically indicated thiamine deficiencies or prophylaxis in high‑risk patients.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service on the same day |