ICD-10-CM K35.2: Acute appendicitis with generalized peritonitis

ICD-10-CM Diagnosis Code (2025)

Official Description for K35.2

Acute appendicitis with generalized peritonitis

Coding Notes & Guidelines for K35.2

Inclusion Terms

(Acute) appendicitis with generalized peritonitis without rupture or perforation of appendix NOS

Inclusion Terms

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

Inclusion Terms

(Acute) appendicitis with generalized peritonitis NOS

Inclusion Terms

(Acute) appendicitis with generalized peritonitis without rupture or perforation of appendix, with abscess

Inclusion Terms

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

Inclusion Terms

(Acute) appendicitis with generalized peritonitis and abscess NOS

Parent Code (Less Specific):

About ICD-10-CM Code K35.2 (Acute appendicitis with generalized peritonitis)

ICD-10-CM code K35.2 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM K35.2 became effective on October 1, 2024.

This page provides detailed information about K35.2 - Acute appendicitis with generalized peritonitis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Acute appendicitis with generalized peritonitis.