Specific code 2011 ICD-9-CM Diagnosis Code 543.9
Other and unspecified diseases of appendix
  • Short description: Diseases of appendix NEC.
  • ICD-9-CM 543.9 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 543.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2011 version of ICD-9-CM 543.9.
  • More recent version(s) of ICD-9-CM 543.9: 2012 2013 2014.
Disease Synonyms
  • Appendiceal colic
  • Appendiceal concretions
  • Appendiceal diverticulum
  • Appendiceal mass
  • Appendicular colic
  • Appendicular concretion
  • Appendicular fistula
  • Appendicular intussusception
  • Appendicular mucocele
  • Appendix disease
  • Appendix hematoma
  • Appendix mass
  • Concretion of appendix
  • Disease of appendix
  • Disorder of appendix
  • Diverticulum of appendix
  • Fecolith in appendix
  • Fibrosis of appendix
  • Fibrous obliteration of appendix
  • Fistula of appendix
  • Focal appendicitis
  • Intussusception of appendix
  • Mass of appendix
  • Mucocele of appendix
Applies To
  • Appendicular or appendiceal:
    • colic
    • concretion
    • fistula
  • Diverticulum of appendix
  • Fecalith of appendix
  • Intussusception of appendix
  • Mucocele of appendix
  • Stercolith of appendix
Convert to ICD-10-CM: 543.9 converts approximately to:
  • 2014 ICD-10-CM K38.1 Appendicular concretions
    Or:
  • 2014 ICD-10-CM K38.2 Diverticulum of appendix
    Or:
  • 2014 ICD-10-CM K38.3 Fistula of appendix
    Or:
  • 2014 ICD-10-CM K38.8 Other specified diseases of appendix
    Or:
  • 2014 ICD-10-CM K38.9 Disease of appendix, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 543.9:
  • Adhesion(s), adhesive (postinfectional) (postoperative)
    • appendix 543.9
  • Appendiclausis 543.9
  • Appendicolithiasis 543.9
  • Atrophy, atrophic
    • appendix 543.9
  • Calculus, calculi, calculous 592.9
    • appendix 543.9
  • Colic (recurrent) 789.7
    • appendicular 543.9
    • appendix 543.9
    • vermicular 543.9
  • Concretion - see also Calculus
    • appendicular 543.9
  • Cyst (mucus) (retention) (serous) (simple)
    • appendix 543.9
  • Dilatation
    • appendix (cystic) 543.9
  • Disease, diseased - see also Syndrome
    • appendix 543.9
  • Diverticula, diverticulosis, diverticulum (acute) (multiple) (perforated) (ruptured) 562.10
    • appendix (noninflammatory) 543.9
  • Fecalith (impaction) 560.32
    • appendix 543.9
  • Fibrosis, fibrotic
    • appendix, appendiceal, noninflammatory 543.9
    • periappendiceal 543.9
  • Fistula (sinus) 686.9
    • appendix, appendicular 543.9
  • Granuloma NEC 686.1
    • appendix 543.9
  • Intussusception (colon) (enteric) (intestine) (rectum) 560.0
    • appendix 543.9
  • Kink, kinking
    • appendix 543.9
  • Mucocele
    • appendix 543.9
  • Obliteration
    • appendix (lumen) 543.9
  • Sloughing (multiple) (skin) 686.9
    • appendix 543.9
  • Stercolith (see also Fecalith) 560.32
    • appendix 543.9
  • Strangulation, strangulated 994.7
    • appendix 543.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 543.9 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 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.