K35.2
Header — not billableAcute appendicitis with generalized peritonitis
The ICD-10 code for acute appendicitis with generalized peritonitis is K35.2.
K35.2 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 2 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K35.3Acute appendicitis with localized peritonitisnon-billable header
- K35.8Other and unspecified acute appendicitisnon-billable header
- K35.2Acute appendicitis with generalized peritonitisnon-billable header
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 5400