Index to Diseases and Injuries
Appendicitis (pneumococcal) (retrocecal)
Index code:K37
- with
- gangrene K35.891
- with localized peritonitis K35.31
- perforation NOS K35.32
- peritoneal abscess K35.33
- peritonitis NEC K35.33
- generalized K35.209
- with
- abscess K35.219
- with perforation or rupture K35.211
- following rupture or perforation of appendix NOS K35.211
- without perforation or rupture K35.210
- perforation or rupture K35.201
- following rupture or perforation of appendix NOS K35.201
- without rupture or perforation of appendix K35.200
- localized K35.30
- with
- gangrene K35.31
- perforation K35.32
- and abscess K35.33
- rupture (with localized peritonitis) K35.32
- acute (catarrhal) (fulminating) (obstructive) (retrocecal) (suppurative) K35.80
- with
- gangrene K35.891
- peritoneal abscess K35.33
- peritonitis NEC K35.33
- generalized K35.209
- with
- abscess K35.219
- with perforation or rupture K35.211
- following rupture or perforation of appendix NOS K35.211
- without perforation or rupture K35.210
- perforation or rupture K35.201
- following rupture or perforation of appendix NOS K35.201
- without rupture or perforation of appendix K35.200
- localized K35.30
- with
- gangrene K35.31
- perforation K35.32
- and abscess K35.33
- specified NEC K35.890
- with gangrene K35.891
- with localized peritonitis K35.31
- amebic A06.89
- chronic (recurrent) K36
- exacerbation — see Appendicitis, with, gangrene
- gangrenous — see Appendicitis, acute
- healed (obliterative) K36
- interval K36
- neurogenic K36
- obstructive K36
- recurrent K36
- relapsing K36
- ruptured NOS (with localized peritonitis) K35.32
- subacute (adhesive) K36
- subsiding K36
- suppurative — see Appendicitis, acute
- tuberculous A18.32
Use the index to find a code, then confirm it in the Tabular List before assigning it. A code ending in a dash is incomplete, and a code in [brackets] is a manifestation code reported after the underlying condition. Search the whole index.
Frequently asked questions
What is the ICD-10-CM code for Appendicitis?
The ICD-10-CM Alphabetic Index directs "Appendicitis" to K37. Subterms below it may lead to a more specific code. Always confirm the code in the Tabular List before assigning it.
ICD-10-CM Index to Diseases and Injuries maintained by CDC/NCHS (public domain), from the CMS FY2027 release.