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

Healthcare Common Procedure Coding System

Last updated: 10/30/2025

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 indicates that your Body Mass Index (BMI) has been calculated and documented as being within normal, healthy parameters. BMI is a measurement that uses your height and weight to assess if you're in a healthy weight range. Since your BMI is normal, your healthcare provider has determined that no additional follow-up plan or intervention is required at this time.

Additional Information

This is a documentation code used when BMI falls within healthy ranges (typically 18.5-24.9). It indicates positive health status requiring no immediate intervention.

Category

Preventive Care/Health Assessment

Medical Specialty

Primary Care/General 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

  • Continue maintaining healthy lifestyle
  • Regular check-ups as recommended by provider

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.