Specific code 2011 ICD-9-CM Diagnosis Code 556.9
Ulcerative colitis unspecified
  • Short description: Ulceratve colitis unspcf.
  • ICD-9-CM 556.9 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 556.9 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 556.9.
  • More recent version(s) of ICD-9-CM 556.9: 2012 2013 2014 2015.
Disease Synonyms
  • Abscess of intestine due to ulcerative colitis
  • Acute ulcerative colitis
  • Arthropathy in ulcerative colitis
  • Chronic mild ulcerative colitis
  • Chronic moderate ulcerative colitis
  • Chronic severe ulcerative colitis
  • Chronic ulcerative colitis
  • Complication due to ulcerative colitis
  • Fistula of intestine due to ulcerative colitis
  • Hemolytic anemia associated with ulcerative colitis
  • Hemolytic anemia w ulcerative colitis
  • Hemolytic anemia, with ulcerative colitis
  • Intestinal obstruction due to ulcerative colitis
  • Mild chronic ulcerative colitis
  • Moderate chronic ulcerative colitis
  • Rectal hemorrhage due to ulcerative colitis
  • Severe chronic ulcerative colitis
  • Ulcerative colitis
  • Ulcerative colitis w abscess
  • Ulcerative colitis w arthritis
  • Ulcerative colitis w complication
  • Ulcerative colitis w fistula
  • Ulcerative colitis w obstruction
  • Ulcerative colitis w rectal bleeding
  • Ulcerative colitis with abscess
  • Ulcerative colitis with arthritis
  • Ulcerative colitis with complication
  • Ulcerative colitis with fistula
  • Ulcerative colitis with obstruction
  • Ulcerative colitis with rectal bleeding
  • Ulcerative colitis, chronic
  • Ulcerative colitis, chronic, mild
  • Ulcerative colitis, chronic, moderate
  • Ulcerative colitis, chronic, severe
Applies To
  • Ulcerative enteritis NOS
Convert to ICD-10-CM: 556.9 converts approximately to:
  • 2015 ICD-10-CM K51.90 Ulcerative colitis, unspecified, without complications
ICD-9-CM Volume 2 Index entries containing back-references to 556.9:
  • Colitis (acute) (catarrhal) (croupous) (cystica superficialis) (exudative) (hemorrhagic) (noninfectious) (phlegmonous) (presumed noninfectious) 558.9
    • chronic 558.9
      • ulcerative (see also Colitis, ulcerative) 556.9
    • gravis (see also Colitis, ulcerative) 556.9
    • polyposa (see also Colitis, ulcerative) 556.9
  • Diarrhea, diarrheal (acute) (autumn) (bilious) (bloody) (catarrhal) (choleraic) (chronic) (gravis) (green) (infantile) (lienteric) (noninfectious) (presumed noninfectious) (putrefactive) (secondary) (sporadic) (summer) (symptomatic) (thermic) 787.91
    • ulcerative (chronic) (see also Colitis, ulcerative) 556.9
  • Enteritis (acute) (catarrhal) (choleraic) (chronic) (congestive) (diarrheal) (exudative) (follicular) (hemorrhagic) (infantile) (lienteric) (noninfectious) (perforative) (phlegmonous) (presumed noninfectious) (pseudomembranous) 558.9
    • chronic 558.9
      • ulcerative (see also Colitis, ulcerative) 556.9
    • ulcerative (chronic) (see also Colitis, ulcerative) 556.9
  • Gastroenteritis (acute) (catarrhal) (congestive) (hemorrhagic) (noninfectious) (see also Enteritis) 558.9
    • chronic 558.9
      • ulcerative (see also Colitis, ulcerative) 556.9
    • ulcerative (see also Colitis, ulcerative) 556.9
  • Megacolon (acquired) (functional) (not Hirschsprung's disease) 564.7
    • toxic (see also Colitis, ulcerative) 556.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 556.9 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.