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K35

Acute appendicitis

K35.2

Acute appendicitis with generalized peritonitis

• Appendicitis (acute) with generalized (diffuse) peritonitis following rupture or perforation of appendix

K35.20

Acute appendicitis with generalized peritonitis, without abscess

• (Acute) appendicitis with generalized peritonitis NOS

K35.21

Acute appendicitis with generalized peritonitis, with abscess

K35.3

Acute appendicitis with localized peritonitis

K35.30

Acute appendicitis with localized peritonitis, without perforation or gangrene

• Acute appendicitis with localized peritonitis NOS

K35.31

Acute appendicitis with localized peritonitis and gangrene, without perforation

K35.32

Acute appendicitis with perforation and localized peritonitis, without abscess

• (Acute) appendicitis with perforation NOS
• Perforated appendix NOS
• Ruptured appendix (with localized peritonitis) NOS

K35.33

Acute appendicitis with perforation and localized peritonitis, with abscess

• (Acute) appendicitis with (peritoneal) abscess NOS
• Ruptured appendix with localized peritonitis and abscess

K35.8

Other and unspecified acute appendicitis

K35.80

Unspecified acute appendicitis

• Acute appendicitis NOS
• Acute appendicitis without (localized) (generalized) peritonitis

K35.89

Other acute appendicitis

K35.890

Other acute appendicitis without perforation or gangrene

K35.891

Other acute appendicitis without perforation, with gangrene

• (Acute) appendicitis with gangrene NOS