Appendicitis ICD 9 Codes (540-543)

APPENDICITIS (540-543)

540       Acute appendicitis

540.0    With generalized peritonitis

Appendicitis (acute) with:  perforation, peritonitis (generalized), rupture:

fulminating

gangrenous

obstructive

Cecitis (acute) with:  perforation, peritonitis (generalized), rupture

Rupture of appendix

Excludes: acute appendicitis with peritoneal abscess (540.1)

540.1    With peritoneal abscess

Abscess of appendix

With generalized peritonitis

540.9    Without mention of peritonitis

Acute:

appendicitis without mention of perforation, peritonitis, or rupture:

fulminating

gangrenous

inflamed

obstructive

cecitis without mention of perforation, peritonitis, or rupture

541       Appendicitis, unqualified

542       Other appendicitis

Appendicitis:

chronic

recurrent

relapsing

subacute

Excludes:    hyperplasia (lymphoid) of appendix (543.0)

543       Other diseases of appendix

543.0    Hyperplasia of appendix (lymphoid)

543.9    Other and unspecified diseases of appendix

Appendicular or appendiceal:

colic

concretion

fistula

Diverticulum of appendix

Fecalith of appendix

Intussusception of appendix

Mucocele of appendix

Stercolith of appendix