Clinical Context
A typical patient is an adult or pediatric patient presenting for intramuscular immune globulin (IGIM) administration, billed as J1460 (injection, gamma globulin, intramuscular, 1 cc). Common clinical indications include prophylaxis after potential exposure to hepatitis A, measles, rubella, or for short-term passive immunity in immunocompromised patients or neonates. The procedure is performed in an outpatient clinic, public health department, emergency department, urgent care, or pediatric office.
Workflow:
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Patient check-in, review of indications, allergies, and consent.
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Verification of ICD-10 diagnosis supporting passive immunization and review of prior immunization history.
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Medication preparation by licensed clinician or pharmacist: dose calculation, syringe draw-up, and labeling.
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Administration of J1460 via intramuscular injection (typical sites: deltoid for adults/older children, anterolateral thigh for infants) with standard aseptic technique.
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Post-injection observation for immediate adverse reactions (usually 15–30 minutes) and documentation of lot number, expiration date, site, dose, and patient response.
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Billing with J1460 per 1 cc unit administered; use of applicable modifier codes to indicate circumstances such as unusual services, discontinued procedures, or multiple payer scenarios.
Typical site of service: outpatient clinic, public health clinic, emergency department, urgent care, pediatric office.
Typical patient scenario: adult patient with recent close contact to a case of hepatitis A who is unimmunized or has contraindication to vaccine receives intramuscular gamma globulin for short-term passive immunity; documentation includes indication, dose in cc, lot number, injection site, and observation notes.
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|
96372 | Therapeutic, prophylactic, or diagnostic injection (subcutaneous or intramuscular); each injection | Commonly used for billing intramuscular injections when payers require CPT for administration separate from drug HCPCS; documents administration encounter. |
90471 | Immunization administration (includes percutaneous, intranasal, or oral), single vaccine | Used when vaccine administration is performed in the same visit; not for IGIM but relevant when patient receives vaccine instead of or in addition to IGIM.
99070 | Supplies and materials provided by physician over and above those usually included with the office visit | Used to report non-drug supplies related to injection (e.g., syringes, alcohol swabs) when payer allows separate supply billing.
96360 | Intravenous infusion, hydration; initial, 31 minutes to 1 hour | Included as a related code in workflows where IV access or observation for infusion-related reactions is clinically required; not routine for IM injection but relevant for higher-acuity patients.
36415 | Collection of venous blood by venipuncture | May be performed in same encounter for baseline serology (e.g., hepatitis serologies) prior to or following passive immunization.