K35.80

Billable

Unspecified acute appendicitis

K35.80 is the ICD-10-CM code for Unspecified acute appendicitis. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
K00-K95
Parent
K35.8
Edition
FY2026

K00-K95 Diseases of the digestive system

Includes

  • Acute appendicitis NOS
  • Acute appendicitis without (localized) (generalized) peritonitis

Frequently asked questions

What is ICD-10 code K35.80?
K35.80 is the ICD-10-CM code for "Unspecified acute appendicitis". It falls under K00-K95 Diseases of the digestive system.
Is K35.80 a billable code?
Yes — K35.80 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.