ICD-10-CM Diagnosis Code (2025)
Official Description for K35.3
Acute appendicitis with localized peritonitis
Coding Notes & Guidelines for K35.3
Inclusion Terms
Acute appendicitis with localized peritonitis NOS
Inclusion Terms
- (Acute) appendicitis with perforation NOS
- Perforated appendix NOS
- Ruptured appendix (with localized peritonitis) NOS
Inclusion Terms
- (Acute) appendicitis with (peritoneal) abscess NOS
- Ruptured appendix with localized peritonitis and abscess
Parent Code (Less Specific):
About ICD-10-CM Code K35.3 (Acute appendicitis with localized peritonitis)
ICD-10-CM code K35.3 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 K35.3 became effective on October 1, 2024.
This page provides detailed information about K35.3 - Acute appendicitis with localized 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 localized peritonitis.