K35
Header — not billableAcute appendicitis
The ICD-10 code for acute appendicitis is K35.
K35 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 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
- K36Other appendicitis
- K37Unspecified appendicitis
- K38Other diseases of appendixnon-billable header
- K35Acute appendicitisnon-billable header