| K35.20 | Acute appendicitis with generalized peritonitis, without abscess | NON-BILLABLE CODE |
| K35.200 | Acute appendicitis with generalized peritonitis, without perforation or abscess | BILLABLE CODE |
| K35.201 | Acute appendicitis with generalized peritonitis, with perforation, without abscess | BILLABLE CODE |
| K35.209 | Acute appendicitis with generalized peritonitis, without abscess, unspecified as to perforation | BILLABLE CODE |
| K35.21 | Acute appendicitis with generalized peritonitis, with abscess | NON-BILLABLE CODE |
| K35.210 | Acute appendicitis with generalized peritonitis, without perforation, with abscess | BILLABLE CODE |
| K35.211 | Acute appendicitis with generalized peritonitis, with perforation and abscess | BILLABLE CODE |
| K35.219 | Acute appendicitis with generalized peritonitis, with abscess, unspecified as to perforation | BILLABLE CODE |
