540.1
Acute appendicitis with peritoneal abscess
The ICD-9 code for acute appendicitis with peritoneal abscess is 540.1.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 540.1 →