{"code":"M31.11","type":"code","title":"Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]","codeAlso":[],"includes":["autoimmune disease NOS","collagen (vascular) disease NOS","systemic autoimmune disease","systemic collagen (vascular) disease"],"modern_v":"official26","codeFirst":["if applicable:","complications of bone marrow transplant (T86.0-)","complications of stem cell transplant (T86.5)"],"excludes1":["autoimmune disease, single organ or single cell-type -code to relevant condition category"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["M31","M31.0","M31.1","M31.10","M31.19","M31.2","M31.3","M31.30","M31.31","M31.4","M31.5","M31.6","M31.7","M31.8","M31.9"],"inclusionTerms":["Transplant-associated thrombotic microangiopathy [TA-TMA]"],"sibling_titles":{"code":"M31.9","title":"Necrotizing vasculopathy, unspecified","isBillable":true},"useAdditionalCode":["code to identify specific organ dysfunction, such as:","acute kidney failure (N17.-)","acute respiratory distress syndrome (J80)","capillary leak syndrome (I78.8)","diffuse alveolar hemorrhage (R04.89)","encephalopathy (metabolic) (septic) (G93.41)","fluid overload, unspecified (E87.70)","graft versus host disease (D89.81-)","hemolytic uremic syndrome (D59.3-)","hepatic failure (K72.-)","hepatic veno-occlusive disease (K76.5)","idiopathic interstitial pneumonia (J84.11-)","sinusoidal obstruction syndrome (K76.5)"],"clinicalDefinition":"Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA] is a billable ICD-10-CM diagnosis code (M31.11). Includes: autoimmune disease NOS; collagen (vascular) disease NOS; systemic autoimmune disease; systemic collagen (vascular) disease. Inclusion terms: Transplant-associated thrombotic microangiopathy [TA-TMA]. Excludes1 (not coded here): autoimmune disease, single organ or single cell-type -code to relevant condition category.","officialDefinition":"Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA] is a billable ICD-10-CM diagnosis code (M31.11). Includes: autoimmune disease NOS; collagen (vascular) disease NOS; systemic autoimmune disease; systemic collagen (vascular) disease. Inclusion terms: Transplant-associated thrombotic microangiopathy [TA-TMA]. Excludes1 (not coded here): autoimmune disease, single organ or single cell-type -code to relevant condition category. Code first: if applicable:; complications of bone marrow transplant (T86.0-); complications of stem cell transplant (T86.5). Use additional code: code to identify specific organ dysfunction, such as:; acute kidney failure (N17.-); acute respiratory distress syndrome (J80); capillary leak syndrome (I78.8); diffuse alveolar hemorrhage (R04.89); encephalopathy (metabolic) (septic) (G93.41); fluid overload, unspecified (E87.70); graft versus host disease (D89.81-); hemolytic uremic syndrome (D59.3-); hepatic failure (K72.-); hepatic veno-occlusive disease (K76.5); idiopathic interstitial pneumonia (J84.11-); sinusoidal obstruction syndrome (K76.5).","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":""}