J2543 - Injectable antibiotic medication (piperacillin/tazobactam) given through IV or injection

Healthcare Common Procedure Coding System

Last updated: 3/24/2026

What is a HCPCS Code?

HCPCS (Healthcare Common Procedure Coding System) codes are used to identify medical procedures, supplies, and services for billing purposes. These codes help standardize how healthcare services are reported and billed across different providers and insurance companies.

Detailed Description

This code represents a specific dose of piperacillin/tazobactam, which is a combination antibiotic medication given by injection or intravenous (IV) infusion. The code covers 1.125 grams total (1 gram of piperacillin sodium plus 0.125 grams of tazobactam sodium). This antibiotic combination is used to treat various bacterial infections by stopping bacteria from growing and making the antibiotic more effective against certain resistant bacteria.

Additional Information

This is a billing code for the medication itself, not the administration. The actual administration may be billed separately. Dosing and frequency depend on the specific infection being treated and patient factors.

Category

Injectable Medications/Antibiotics

Medical Specialty

Various (Emergency Medicine, Internal Medicine, Surgery, etc.)

Expected Costs

Your actual cost will depend on your insurance coverage, provider location, and specific circumstances.

What's Required Before This

  • Medical evaluation for bacterial infection
  • IV access or injection site preparation
  • Allergy screening for penicillin-based antibiotics

What to Expect After

  • Monitoring for allergic reactions
  • Assessment of infection response
  • Completion of prescribed antibiotic course

Why Understanding This Code Matters

On Your Medical Bill

This code appears on your medical bills to identify the specific service, procedure, drug, or medical diagnosis you received. Understanding what it means helps you verify you're being charged correctly and know what to expect.

For Your Health

Knowing what this code represents helps you understand your treatment plan, ask better questions during appointments, and track your healthcare journey more effectively.

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