K35.891
K35.891: Other acute appendicitis without perforation, with gangrene
Billable / specific codeICD-10-CM
K35.891 is a billable, specific ICD-10-CM code for other acute appendicitis without perforation, with gangrene. It is valid for submission on a claim.
Check K35.891 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- (Acute) appendicitis with gangrene NOS
Other codes that can never be billed with K35.891
Their own Excludes1 notes name this code, so the conflict is not listed above.
- K65Peritonitis
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
K35.891 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A55336Billing and Coding: Retroperitoneal Ultrasound
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Alphabetic index entries that lead here
- Appendicitis›with›gangrene
- Appendicitis›acute›specified NEC›with gangrene
- Appendicitis›acute›with›gangrene
Code history
Unchanged in every release from FY2024 to FY2027.