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ICD-10 diagnosis code

K35.3 Acute appendicitis with localized peritonitis

This page in Swedish

K35.3 is the ICD-10 code for Acute appendicitis with localized peritonitis. It is a four-character subcategory of K35 (Acute appendicitis), the most specific level in the WHO edition. It belongs to the block K35–K38 (Diseases of appendix) in Chapter XI, Diseases of the digestive system.

Code type
Subcategory (4 characters)
Chapter
XI · K00–K93
Classification
WHO ICD-10, 2019 version

What K35.3 includes

Conditions and terms that are coded here.

  • Acute appendicitis (with or without perforation or rupture) with peritonitis:
    • NOS
    • localized
  • Acute appendicitis with peritoneal abscess

K35.3 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

K35.3Akut appendicit med lokaliserad peritonit

NorwayICD-10-NO

K35.3Akutt appendisitt med lokalisert peritonitt

DenmarkICD-10-DK

DK353Akut appendicitis med lokaliseret peritonitis

  • DK353AAkut appendicitis med peritoneal absces
  • DK353BAkut appendicitis med periappendikulær absces
GermanyICD-10-GM

K35.3Akute Appendizitis mit lokalisierter Peritonitis

  • K35.30Akute Appendizitis mit lokalisierter Peritonitis ohne Perforation oder Ruptur
  • K35.31Akute Appendizitis mit lokalisierter Peritonitis mit Perforation oder Ruptur
  • K35.32Akute Appendizitis mit Peritonealabszess
FranceICD-10-FR

K35.3Appendicite aigüe avec péritonite localisée

NetherlandsICD-10-NL

K35.3acute appendicitis met gelokaliseerde peritonitis

United StatesICD-10-CM

Listed through more specific codes:

  • K35.30Acute appendicitis with localized peritonitis, without perforation or gangrene
  • K35.31Acute appendicitis with localized peritonitis and gangrene, without perforation
  • K35.32Acute appendicitis with perforation, localized peritonitis, and gangrene, without abscess
  • K35.33Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess

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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