ICD-10-CM Diagnosis Code (2025)
Official Description for K35.33
Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess
Coding Notes & Guidelines for K35.33
- (Acute) appendicitis with (peritoneal) abscess NOS
- Ruptured appendix with localized peritonitis and abscess
Parent Code (Less Specific):
About ICD-10-CM Code K35.33 (Acute appendicitis with perforation)
ICD-10-CM code K35.33 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 K35.33 became effective on October 1, 2024.
This page provides detailed information about K35.33 - Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess. 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 perforation related to localized peritonitis, and gangrene, abscess.