Acute appendicitis with perforation, localized peritonitis, and gangrene, without abscess

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2019 onwards.

What has happened to this code

Every change the publisher made, from 2019 to now.

FY2019 Added to the code set Acute appendicitis with perforation and localized peritonitis, without abscess
FY2023 Description revised ~~Acute appendicitis with perforation and localized peritonitis, without abscess~~ Acute appendicitis with perforation, localized peritonitis, and gangrene, without abscess

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Omentitis
Phagedena
Sloughing
Sphacelus
Epiploitis
Mortification
Paratyphilitis
Periappendicitis
Enteroperitonitis
Necrosis, necrotic
Pemphigus > gangrenous
Cellulitis > gangrenous
Irritation > peritoneum
Abscess > intra-abdominal
Appendicitis > gangrenous
Appendicitis > suppurative
Rupture, ruptured > appendix
Dropsy, dropsical > gangrenous
Infection, infected, infective > peritoneal
Inflammation, inflamed, inflammatory > cecum
Inflammation, inflamed, inflammatory > appendix
Inflammation, inflamed, inflammatory > peritoneum
Inflammation, inflamed, inflammatory > retrocecal
Abscess > peritoneum, peritoneal > with appendicitis
Inflammation, inflamed, inflammatory > retroperitoneal
Rupture, ruptured > appendix > with localized peritonitis
Peritonitis > with or following > appendicitis > localized
Peritonitis > with or following > appendicitis > generalized
Gangrene, gangrenous > appendix > with > peritonitis, localized
Ulcer, ulcerated, ulcerating, ulceration, ulcerative > gangrenous
Ulcer, ulcerated, ulcerating, ulceration, ulcerative > skin > with gangrene
Appendicitis > ruptured NOS
Rupture, ruptured > appendix
Perforation, perforated > cecum
Perforation, perforated > appendix
Appendicitis > with > perforation NOS
Appendicitis > with > peritonitis NEC > rupture
Rupture, ruptured > appendix > with localized peritonitis
Perforation, perforated > cecum > with localized peritonitis
Perforation, perforated > appendix > with localized peritonitis

Showing 40 of 43 index phrases.

Codes in the same group

Code	Description	Status
K35.30	Acute appendicitis with localized peritonitis, without perforation or gangrene	Valid
K35.31	Acute appendicitis with localized peritonitis and gangrene, without perforation	Valid
K35.33	Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess	Valid