ICD-10 diagnosis code

K35 Acute appendicitis

K35 is the ICD-10 code for Acute appendicitis. It is a three-character category divided into 3 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block K35–K38 (Diseases of appendix) in Chapter XI, Diseases of the digestive system.

Code type: Category (3 characters)
Chapter: XI · K00–K93
Classification: WHO ICD-10, 2019 version

Subcodes of K35

K35 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

K35Akut appendicit

DenmarkICD-10-DK

DK35Akut blindtarmsbetændelse

FinlandICD-10-FI

K35Akuutti umpilisäkkeen tulehdus

K35.0Akuutti umpilisäketulehdus ja yleistynyt vatsakalvotulehdus
K35.1Akuutti umpilisäketulehdus ja vatsakalvopaise
K35.9Määrittämätön akuutti umpilisäketulehdus

GermanyICD-10-GM

K35Akute Appendizitis

FranceICD-10-FR

K35Appendicite aiguë

NetherlandsICD-10-NL

K35acute appendicitis

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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