Summary & Overview
HCPCS Level II J2185: Injection, meropenem, 100 mg
HCPCS Level II code J2185 denotes a 100 mg unit of meropenem for injection, a broad-spectrum carbapenem antibiotic used in serious bacterial infections. This code is used across inpatient and outpatient settings where parenteral antibiotic therapy is administered, including hospitals, emergency departments, and infusion clinics. Nationally, appropriate coding and unitization of J2185 matter because meropenem is commonly used for severe, resistant infections and can drive significant pharmacy and infusion line-item costs.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise view of clinical context for meropenem use, typical sites of service, and the billing implications tied to dosage-based HCPCS reporting. The publication outlines common billing practices, unit reporting considerations for high-dose regimens, and benchmarking topics relevant to pharmacy spend and utilization management. Policy updates and payer coverage nuances that impact prior authorization, step therapy, and inpatient formulary placement are summarized at a national level.
This resource equips coding professionals, revenue managers, and clinicians with the essential reference for HCPCS Level II code J2185: what it represents, where it is billed, and what to consider when documenting and reporting meropenem administration.
Billing Code Overview
HCPCS Level II code J2185 represents Injection, meropenem, 100 mg. The service reflects the administration of the broad-spectrum carbapenem antibiotic meropenem in 100 mg increments.
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Service type: Intravenous or intramuscular antibiotic administration
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Typical site of service: Hospital inpatient, hospital outpatient (including observation/infusion centers), emergency department, and outpatient infusion clinics
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Clinical & Coding Specifications
Clinical Context
A typical patient is an adult hospitalized with a severe Gram-negative bacterial infection (for example, complicated intra-abdominal infection or hospital-acquired pneumonia) who requires intravenous broad-spectrum carbapenem therapy. The attending infectious disease physician orders meropenem for empiric coverage pending culture results. A registered nurse or pharmacist prepares J2185 (meropenem 100 mg) as a parenteral injection or infusion; multiple vials are combined to achieve the ordered dose (for example, 1 g = ten J2185 units). Drug administration commonly occurs in an inpatient acute-care bed, step-down unit, or observation unit. Documentation includes the indication, dose calculated from weight and renal function, time of administration, lot number and expiration, IV access type, and any immediate adverse reactions. Pharmacy verifies dose, diluent, and compatibility; nursing documents infusion start/stop times, patient tolerance, and any need for escalation. If administered in an outpatient infusion center, the claim for J2185 may be billed with appropriate site-of-service and payer-specific modifiers. Typical workflow steps: order entry by physician, pharmacy compounding and verification, bedside administration by nurse, and post-administration monitoring and documentation in the medical record.
Coding Specifications
| Modifier | Description | When to Use |
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