10ICD Code Hub

K35.211

Billable code

Acute appendicitis with generalized peritonitis, with perforation and abscess

The ICD-10 code for acute appendicitis with generalized peritonitis, with perforation and abscess is K35.211.

Clinical notes

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

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

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Related codes in this category

Associated MS-DRGs

K35.211 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.