K35.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Short description: Acute appendicitis with gen peritonitis, with abscess
The 2023 edition of ICD-10-CM K35.21 became effective on October 1, 2022.
This is the American ICD-10-CM version of K35.21 – other international versions of ICD-10 K35.21 may differ.