A6021 - Sterile collagen wound dressing, 16 square inches or smaller

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 represents a single sterile collagen dressing that measures 16 square inches or less in size. Collagen dressings are specialized wound care products made from collagen (a natural protein found in skin and other tissues) that help promote healing. These dressings are applied directly to wounds to provide a moist healing environment and support the body's natural healing process.

Additional Information

This is a medical supply code for billing purposes. The actual use, frequency of changes, and appropriateness for specific wounds should always be determined by a qualified healthcare provider based on individual patient needs and wound characteristics.

Category

Wound Care Supplies

Medical Specialty

Wound Care/Dermatology

Expected Costs

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

What's Required Before This

  • Prescription or medical order from healthcare provider
  • Appropriate wound assessment by qualified healthcare professional

What to Expect After

  • Regular wound monitoring
  • Dressing changes as directed by healthcare provider
  • Follow-up appointments to assess healing progress

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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