D83

Non-billable

Common variable immunodeficiency

D83 is the ICD-10-CM code for Common variable immunodeficiency. It is a non-billable category code — use a more specific child code such as D83.0 for billing.

Status
Header (non-billable)
Chapter
D50-D89
Subcodes
5
Edition
FY2026

D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

What this means — in plain language

MedlinePlus · NIH

What is the immune system? Your immune system is a complex network of cells, tissues, and organs. Together they help the body fight infections and other diseases. When germs such as bacteria or viruses invade your body, they attack and multiply. This is called an infection. The infection causes the disease that makes you sick. Your immune system protects you from the disease by fighting off the germs. What are the…

Read more about Immune System and Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code D83?
D83 is the ICD-10-CM code for "Common variable immunodeficiency". It falls under D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
Is D83 a billable code?
No — D83 is a non-billable header code. Use a more specific child code (such as D83.0) for billing.
What are the subcodes of D83?
D83 has 5 more specific child codes, including D83.0, D83.1, D83.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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