Specific code 2009 ICD-9-CM Diagnosis Code 556.1
Ulcerative (chronic) ileocolitis
  • Short description: ULCERATIVE ILEOCOLITIS.
  • ICD-9-CM 556.1 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 556.1 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2009 version of ICD-9-CM 556.1.
  • More recent version(s) of ICD-9-CM 556.1: 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 556.1 converts approximately to:
  • 2015/16 ICD-10-CM K51.80 Other ulcerative colitis without complications
ICD-9-CM Volume 2 Index entries containing back-references to 556.1:
  • Colitis (acute) (catarrhal) (croupous) (cystica superficialis) (exudative) (hemorrhagic) (noninfectious) (phlegmonous) (presumed noninfectious) 558.9
  • Ileocolitis (see also Enteritis) 558.9
    • ulcerative 556.1
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative 707.9
    • ileocolitis 556.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 556.1 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 2009 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.