Summary & Overview
HCPCS Level II J3425: Hydroxocobalamin IM Injection, 10 mcg
HCPCS Level II code J3425 denotes an intramuscular injection of hydroxocobalamin, 10 mcg, used for vitamin B12 replacement. Nationally, accurate coding for injectable B12 therapies is important for clinical continuity, claims processing, and pharmacy-billing coordination across ambulatory settings. The code captures a discrete drug administration event and is relevant where intramuscular vitamin supplementation is clinically indicated.
Key payers included in this summary are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for hydroxocobalamin injections, common sites of service, and the billing focus for payers listed above. The publication covers typical billing considerations, expected service lines, common modifiers in use (where available), and how reimbursement and coverage policies can affect administration in outpatient clinics and physician offices.
This analysis is written for a national audience and highlights what providers and billing professionals need to know about coding, typical service settings, and payer coverage patterns for intramuscular hydroxocobalamin, while noting where input data is not available.
Billing Code Overview
HCPCS Level II code J3425 represents an injection of hydroxocobalamin, intramuscular, 10 mcg. This service is a medication administration for vitamin B12 replacement delivered via intramuscular injection. Typical site of service is an outpatient clinic, physician office, or other ambulatory care setting where intramuscular injections are performed.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult or pediatric patient with documented or suspected vitamin B12 deficiency, pernicious anemia, or cyanide exposure requiring parenteral hydroxocobalamin therapy. The clinical workflow begins with clinician assessment (history, neurologic exam, and laboratory evaluation of serum B12, methylmalonic acid, and intrinsic factor antibodies when indicated). When intramuscular hydroxocobalamin is ordered, nursing obtains informed consent, verifies allergies, and prepares the J3425 medication (hydroxocobalamin, intramuscular, 10 mcg). The injection is administered in an outpatient clinic, infusion center, emergency department, or inpatient ward depending on acuity. Typical administration includes site selection (deltoid or vastus lateralis), standard aseptic technique, and documentation of lot number, expiration date, dose, route, site, and patient response. Post-injection monitoring includes observation for immediate hypersensitivity and assessment of symptom improvement over follow-up visits. Billing uses HCPCS Level II code J3425 with appropriate medical record documentation and an applicable modifier if circumstances require (for example, unusual service or distinct procedural service).
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — standard unit/service reporting |