Anpheros Search · Condition

Appendicitis (not specified)

Also known as: Appendicitis, unspecified

General information only. Anpheros does not diagnose and does not recommend treatment. Talk to a doctor or pharmacist about your situation. In an emergency, call 112 (or your local emergency number).

In short

The appendix is a small, tube-like organ in the lower right part of the abdomen, and a blockage inside of it causes appendicitis. This blockage leads to increased pressure, problems with blood flow, and inflammation, which can cause the appendix to burst and spread infection if not treated. The main symptom is pain in the abdomen, often on the right side, which is usually sudden and gets worse over time. Appendicitis is a medical emergency, and treatment almost always involves removing the appendix.

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: K37
ICD-11: DB10.Z Appendicitis, unspecified

Description

The appendix is a small, tube-like organ attached to the first part of the large intestine. It is located in the lower right part of the abdomen. It has no known function. A blockage inside of the appendix causes appendicitis. The blockage leads to increased pressure, problems with blood flow, and inflammation. If the blockage is not treated, the appendix can burst and spread infection into the abdomen. This causes a condition called peritonitis.
The main symptom is pain in the abdomen, often on the right side. It is usually sudden and gets worse over time. Other symptoms may include:
Swelling in the abdomen
Loss of appetite
Nausea and vomiting
Constipation or diarrhea
Inability to pass gas
Low fever
Not everyone with appendicitis has all these symptoms.
Appendicitis is a medical emergency. Treatment almost always involves removing the appendix. Anyone can get appendicitis, but it is more common among people 10 to 30 years old.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases

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 Appendicitis (not specified)?

K37 (WHO, International Classification of Diseases, 10th Revision).

What is the ICD-11 code for Appendicitis (not specified)?

DB10.Z: Appendicitis, 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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