{"code":"K55.03","type":"code","title":"Acute (reversible) ischemia of large intestine","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["necrotizing enterocolitis of newborn (P77.-)"],"excludes2":["angioectasia (angiodysplasia) duodenum (K31.81-)"],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["K55.031","K55.032","K55.039"],"inclusionTerms":["Acute fulminant ischemic colitis","Subacute ischemic colitis"],"sibling_titles":{"code":"K55.039","title":"Acute (reversible) ischemia of large intestine, extent unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Acute (reversible) ischemia of large intestine is a non-billable ICD-10-CM category code (K55.03). A more specific billable subcode must be selected for claims submission. Inclusion terms: Acute fulminant ischemic colitis; Subacute ischemic colitis. Excludes1 (not coded here): necrotizing enterocolitis of newborn (P77.-). Excludes2 (not included here): angioectasia (angiodysplasia) duodenum (K31.81-).","officialDefinition":"Acute (reversible) ischemia of large intestine is a non-billable ICD-10-CM category code (K55.03). A more specific billable subcode must be selected for claims submission. Inclusion terms: Acute fulminant ischemic colitis; Subacute ischemic colitis. Excludes1 (not coded here): necrotizing enterocolitis of newborn (P77.-). Excludes2 (not included here): angioectasia (angiodysplasia) duodenum (K31.81-).","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":""}