{"code":"K51.012","type":"code","title":"Ulcerative (chronic) pancolitis with intestinal obstruction","codeAlso":[],"includes":["noninfective inflammatory bowel disease"],"modern_v":"official26","codeFirst":[],"excludes1":["Crohn's disease [regional enteritis] (K50.-)","irritable bowel syndrome (K58.-)","megacolon (K59.3-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["K51","K51.0","K51.00","K51.01","K51.011","K51.013","K51.014","K51.018","K51.019","K51.2","K51.20","K51.21","K51.211","K51.212","K51.213","K51.214","K51.218","K51.219","K51.3","K51.30","K51.31","K51.311","K51.312","K51.313","K51.314","K51.318","K51.319","K51.4","K51.40","K51.41","K51.411","K51.412","K51.413","K51.414","K51.418","K51.419","K51.5","K51.50","K51.51","K51.511","K51.512","K51.513","K51.514","K51.518","K51.519","K51.8","K51.80","K51.81","K51.811","K51.812","K51.813","K51.814","K51.818","K51.819","K51.9","K51.90","K51.91","K51.911","K51.912","K51.913","K51.914","K51.918","K51.919"],"inclusionTerms":[],"sibling_titles":{"code":"K51.919","title":"Ulcerative colitis, unspecified with unspecified complications","isBillable":true},"useAdditionalCode":["code to identify any associated fistulas, if applicable:","anal fistula (K60.3-)","anorectal fistula (K60.5-)","rectal fistula (K60.4-)","code to identify manifestations, such as:","pyoderma gangrenosum (L88)"],"clinicalDefinition":"Ulcerative (chronic) pancolitis with intestinal obstruction is a billable ICD-10-CM diagnosis code (K51.012). Includes: noninfective inflammatory bowel disease. Excludes1 (not coded here): Crohn's disease [regional enteritis] (K50.-); irritable bowel syndrome (K58.-); megacolon (K59.3-). Use additional code: code to identify any associated fistulas, if applicable:; anal fistula (K60.3-); anorectal fistula (K60.5-); rectal fistula (K60.4-); code to identify manifestations, such as:; pyoderma gangrenosum (L88).","officialDefinition":"Ulcerative (chronic) pancolitis with intestinal obstruction is a billable ICD-10-CM diagnosis code (K51.012). Includes: noninfective inflammatory bowel disease. Excludes1 (not coded here): Crohn's disease [regional enteritis] (K50.-); irritable bowel syndrome (K58.-); megacolon (K59.3-). Use additional code: code to identify any associated fistulas, if applicable:; anal fistula (K60.3-); anorectal fistula (K60.5-); rectal fistula (K60.4-); code to identify manifestations, such as:; pyoderma gangrenosum (L88).","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":"","noteProvenance":{"Crohn's disease [regional enteritis] (K50.-)":"K51","irritable bowel syndrome (K58.-)":"K51","megacolon (K59.3-)":"K51","code to identify any associated fistulas, if applicable:":"K51","anal fistula (K60.3-)":"K51","anorectal fistula (K60.5-)":"K51","rectal fistula (K60.4-)":"K51","code to identify manifestations, such as:":"K51","pyoderma gangrenosum (L88)":"K51","noninfective inflammatory bowel disease":"K51","Backwash ileitis":"K51.0"},"hcc":{"mapped":true,"model":"CMS-HCC V28","paymentYear":"2026","categories":[{"hcc":"78","label":"Intestinal Obstruction/Perforation","family":"","suppresses":[]},{"hcc":"81","label":"Ulcerative Colitis","family":"","suppresses":[]}],"otherModels":[{"model":"CMS-HCC V22","hcc":"33"},{"model":"CMS-HCC V22","hcc":"35"},{"model":"RxHCC V08","hcc":"67"}]}}