G8420 - Documentation that BMI (Body Mass Index) is within normal range with no follow-up needed

Healthcare Common Procedure Coding System

Last updated: 10/3/2025

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 when a healthcare provider calculates and documents that a patient's Body Mass Index (BMI) falls within normal, healthy parameters. BMI is a measurement that uses height and weight to assess if someone is at a healthy weight for their height. When this code is used, it means your BMI is in the normal range and your healthcare provider has determined that no additional follow-up or intervention is required regarding your weight status.

Additional Information

This is a quality reporting code used to document that BMI assessment was performed and found to be normal. It does not represent a billable service but rather documentation for quality measures.

Category

Quality Reporting/Performance Measurement

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

  • Height and weight measurements
  • BMI calculation

What to Expect After

  • No specific follow-up required as BMI is normal

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.

Want This Level of Detail on All Your Claims?

Get detailed explanations for every medical code on your Medicare bills. Currently supporting Medicare only.