Home > 2012 ICD-9-CM Diagnosis Codes > Diseases Of The Digestive System 520-579 > Appendicitis 540-543 > Acute appendicitis 540-
2012 ICD-9-CM Diagnosis Code 540.1
Acute appendicitis with peritoneal abscess
- Short description: Abscess of appendix.
- ICD-9-CM 540.1 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
- You are viewing the 2012 version of ICD-9-CM 540.1.
- More recent version(s) of ICD-9-CM 540.1: 2013.
Applies To
- Abscess of appendix
- With generalized peritonitis
Convert 540.1 to ICD-10-CM 
ICD-9-CM 540.1 converts approximately to:
- 2013 ICD-10-CM K35.3 Acute appendicitis with localized peritonitis
ICD-9-CM Volume 2 Index entries containing back-references to 540.1:
- Abscess (acute) (chronic) (infectional) (lymphangitic) (metastatic) (multiple) (pyogenic) (septic) (with lymphangitis) (see also Cellulitis) 682.9
appendix 540.1
- cecum 569.5
with appendicitis 540.1
- ileocecal 540.1
- iliac (region) 682.2
- fossa 540.1
- periappendiceal 540.1
- pericecal 540.1
- peritoneum, peritoneal (perforated) (ruptured) 567.22
- perityphlic 540.1
- postcecal 540.1
- subcecal 540.1
- vermiform appendix 540.1
- Appendicitis 541
- with
- perforation, peritonitis (generalized), or rupture 540.0
- with peritoneal abscess 540.1
- peritoneal abscess 540.1
- Perforation, perforative (nontraumatic)
- appendix 540.0
- with peritoneal abscess 540.1
- cecum 540.0
with peritoneal abscess 540.1
- Peritonitis (acute) (adhesive) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion) 567.9
- Phlegmon (see also Abscess) 682.9
- iliac 682.2
- fossa 540.1
- Rupture, ruptured 553.9
- appendix (with peritonitis) 540.0
- with peritoneal abscess 540.1
- traumatic - see Injury, internal, gastrointestinal tract
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 540.1 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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