Z23 - Visit for receiving a vaccination or immunization

International Classification of Diseases

Last updated: 10/3/2025

What is a ICD-10 Code?

ICD-10 (International Classification of Diseases, 10th Revision) codes are used to classify and code all diagnoses, symptoms, and procedures recorded in association with hospital care. These codes provide a standardized way to track health conditions and their treatment outcomes.

Detailed Description

This code is used when you visit a healthcare provider specifically to receive a vaccine or immunization. This could be for routine vaccinations like flu shots, COVID-19 vaccines, travel vaccines, or any other preventive immunizations. The visit is focused on administering the vaccine rather than treating an illness or injury. This is a preventive care service that helps protect you from various diseases.

Additional Information

Most insurance plans cover recommended vaccines at 100% as preventive care. Cost varies significantly based on the specific vaccine type and whether it's administered at a doctor's office, pharmacy, or clinic.

Category

Preventive Care

Medical Specialty

Primary Care, Family Medicine, Internal Medicine, Pediatrics

Expected Costs

We expect this to normally be in the range of:

$25 - $200

This is an estimate based on typical billing patterns. Your actual cost may vary depending on your insurance coverage, provider location, and specific circumstances.

What's Required Before This

  • Age-appropriate vaccination schedule
  • Medical history review
  • No current illness or fever

What to Expect After

  • Monitor for side effects for 15-30 minutes after vaccination
  • Schedule next vaccination if part of a series
  • Record vaccination in personal health records

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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