{"code":"D89.89","type":"code","title":"Other specified disorders involving the immune mechanism, not elsewhere classified","codeAlso":[],"includes":["defects in the complement system","immunodeficiency disorders, except human immunodeficiency virus [HIV] disease","sarcoidosis"],"modern_v":"official26","codeFirst":[],"excludes1":["human immunodeficiency virus disease (B20)","hyperglobulinemia NOS (R77.1)","monoclonal gammopathy (of undetermined significance) (D47.2)","autoimmune disease (systemic) NOS (M35.9)","functional disorders of polymorphonuclear neutrophils (D71-)","human immunodeficiency virus [HIV] disease (B20)"],"excludes2":["transplant failure and rejection (T86.-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Other specified disorders involving the immune mechanism, not elsewhere classified is a billable ICD-10-CM diagnosis code (D89.89). Includes: defects in the complement system; immunodeficiency disorders, except human immunodeficiency virus [HIV] disease; sarcoidosis. Excludes1 (not coded here): human immunodeficiency virus disease (B20); hyperglobulinemia NOS (R77.1); monoclonal gammopathy (of undetermined significance) (D47.2); autoimmune disease (systemic) NOS (M35.","officialDefinition":"Other specified disorders involving the immune mechanism, not elsewhere classified is a billable ICD-10-CM diagnosis code (D89.89). Includes: defects in the complement system; immunodeficiency disorders, except human immunodeficiency virus [HIV] disease; sarcoidosis. Excludes1 (not coded here): human immunodeficiency virus disease (B20); hyperglobulinemia NOS (R77.1); monoclonal gammopathy (of undetermined significance) (D47.2); autoimmune disease (systemic) NOS (M35.9); functional disorders of polymorphonuclear neutrophils (D71-); human immunodeficiency virus [HIV] disease (B20). Excludes2 (not included here): transplant failure and rejection (T86.-).","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":""}