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Diseases of the spleen

Also known as: Diseases of spleen, unspecified

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In short

The spleen is an organ located above the stomach and under the ribs on the left side that is part of the lymphatic system, which fights infection and keeps body fluids in balance. It contains white blood cells that fight germs, helps control the amount of blood in the body, and destroys old and damaged cells. Certain diseases can cause the spleen to swell, and an injury can damage or rupture it, especially if it is already swollen. If the spleen is too damaged, surgery may be needed to remove it, and while other organs like the liver will take over some of its work, the body will lose some of its ability to fight infections.

Source: MedlinePlus, National Library of Medicine.

AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.

Codes

ICD-10: D73
ICD-11: 3B8Z Diseases of spleen, unspecified

Description

Your spleen is an organ above your stomach and under your ribs on your left side. It is about as big as your fist. The spleen is part of your lymphatic system, which fights infection and keeps your body fluids in balance. It contains white blood cells that fight germs. Your spleen also helps control the amount of blood in your body, and destroys old and damaged cells.
Certain diseases might cause your spleen to swell. You can also damage or rupture your spleen in an injury, especially if it is already swollen. If your spleen is too damaged, you might need surgery to remove it. You can live without a spleen. Other organs, such as your liver, will take over some of the spleen's work. Without a spleen, however, your body will lose some of its ability to fight infections.

Source: MedlinePlus, National Library of Medicine.

Next to it in ICD-10

Neighbouring codes in the classification, not a medical link.

External resources

Questions

What is the ICD-10 code for Diseases of the spleen?

D73 (WHO, International Classification of Diseases, 10th Revision).

What is the ICD-11 code for Diseases of the spleen?

3B8Z: Diseases of spleen, unspecified (WHO, ICD-11 for Mortality and Morbidity Statistics).

Sources and attribution

Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
Source: MedlinePlus, National Library of Medicine.
ICD-10 codes and titles © World Health Organization. Source: WHO, International Classification of Diseases, 10th Revision (2019).

Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →

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