S65: Injury of blood vessels at wrist and hand level
S65.4: Injury of blood vessel(s) of thumb
You have an injury to one or more blood vessels in your thumb.
When a blood vessel is damaged, there is usually bleeding. If the bleeding is heavy, blood may collect in the tissue. You can then have arm pain. When there is bleeding below the skin, a bruise sometimes forms.
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If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.