K35.80 Unspecified acute appendicitis
Billable / valid for submission ICD10CM Release FY2026
Version history
| Release | Valid from | Valid to | Description | Billable |
|---|---|---|---|---|
| FY2026 | 2025-10-01 | current | Unspecified acute appendicitis | yes |
Related codes in K35
- K35 Acute appendicitis
- K35.2 Acute appendicitis with generalized peritonitis
- K35.20 Acute appendicitis with generalized peritonitis, without abscess
- K35.200 Acute appendicitis with generalized peritonitis, without perforation or abscess
- K35.201 Acute appendicitis with generalized peritonitis, with perforation, without abscess
- K35.209 Acute appendicitis with generalized peritonitis, without abscess, unspecified as to perforation
- K35.21 Acute appendicitis with generalized peritonitis, with abscess
- K35.210 Acute appendicitis with generalized peritonitis, without perforation, with abscess
- K35.211 Acute appendicitis with generalized peritonitis, with perforation and abscess
- K35.219 Acute appendicitis with generalized peritonitis, with abscess, unspecified as to perforation
- K35.3 Acute appendicitis with localized peritonitis
- K35.30 Acute appendicitis with localized peritonitis, without perforation or gangrene
- K35.31 Acute appendicitis with localized peritonitis and gangrene, without perforation
- K35.32 Acute appendicitis with perforation, localized peritonitis, and gangrene, without abscess
- K35.33 Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess
- K35.8 Other and unspecified acute appendicitis
- K35.89 Other acute appendicitis
- K35.890 Other acute appendicitis without perforation or gangrene
- K35.891 Other acute appendicitis without perforation, with gangrene