G8483 - Documentation that flu vaccine was not given for a documented medical reason

Healthcare Common Procedure Coding System

Last updated: 11/28/2025

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 is used by healthcare providers to document when a flu (influenza) vaccination was not administered to a patient, and the reason for not giving the vaccine was properly documented. Common documented reasons include: patient allergies to vaccine components, other medical contraindications, patient refusal of the vaccine, vaccine not being available at the time, or other system-related issues that prevented vaccination.

Additional Information

This is a reporting code used for quality measures and documentation purposes, not a billable service. It helps track vaccination rates and reasons for non-vaccination in healthcare quality reporting.

Category

Quality Reporting/Documentation

Medical Specialty

Primary Care/Preventive Medicine

Expected Costs

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

What's Required Before This

  • Clinical encounter where flu vaccination was considered

What to Expect After

  • May discuss alternative vaccination timing
  • Address any concerns about vaccination if patient declined

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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