About Section K35-K38

Section K35-K38 covers Diseases of appendix within Chapter 11 of the ICD-10-CM Tabular List. This section includes diagnosis codes ranging from K35 to K38. Each code below includes its description, billable status, and links to detailed coding guidelines.

Diagnosis Codes 29 entries

K35Acute appendicitisNon-Billable›K35.2Acute appendicitis with generalized peritonitisNon-Billable›K35.20Acute appendicitis with generalized peritonitis, without abscessNon-Billable›K35.200Acute appendicitis with generalized peritonitis, without perforation or abscessBillable›K35.201Acute appendicitis with generalized peritonitis, with perforation, without abscessBillable›K35.209Acute appendicitis with generalized peritonitis, without abscess, unspecified as to perforationBillable›K35.21Acute appendicitis with generalized peritonitis, with abscessNon-Billable›K35.210Acute appendicitis with generalized peritonitis, without perforation, with abscessBillable›K35.211Acute appendicitis with generalized peritonitis, with perforation and abscessBillable›K35.219Acute appendicitis with generalized peritonitis, with abscess, unspecified as to perforationBillable›K35.3Acute appendicitis with localized peritonitisNon-Billable›K35.30Acute appendicitis with localized peritonitis, without perforation or gangreneBillable›K35.31Acute appendicitis with localized peritonitis and gangrene, without perforationBillable›K35.32Acute appendicitis with perforation, localized peritonitis, and gangrene, without abscessBillable›K35.33Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscessBillable›K35.8Other and unspecified acute appendicitisNon-Billable›K35.80Unspecified acute appendicitisBillable›K35.89Other acute appendicitisNon-Billable›K35.890Other acute appendicitis without perforation or gangreneBillable›K35.891Other acute appendicitis without perforation, with gangreneBillable›K36Other appendicitisBillable›K37Unspecified appendicitisBillable›K38Other diseases of appendixNon-Billable›K38.0Hyperplasia of appendixBillable›K38.1Appendicular concretionsBillable›K38.2Diverticulum of appendixBillable›K38.3Fistula of appendixBillable›K38.8Other specified diseases of appendixBillable›K38.9Disease of appendix, unspecifiedBillable›