I78
Non-billableDiseases of capillaries
I78 is the ICD-10-CM code for Diseases of capillaries. It is a non-billable category code — use a more specific child code such as I78.0 for billing.
- Status
- Header (non-billable)
- Chapter
- I00-I99
- Subcodes
- 4
- Edition
- FY2026
I00-I99 Diseases of the circulatory system
What this means — in plain language
MedlinePlus · NIHWhat are vascular diseases? Your vascular system is your body's network of blood vessels. It includes your: Arteries, which carry oxygen-rich blood from your heart to your tissues and organs Veins, which carry the blood and waste products back to your heart Capillaries, which are tiny blood vessels that connect your small arteries to your small veins. The walls of the capillaries are thin and leaky, to allow for an…
Read more about Vascular Diseases at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition