{"code":"M30.8","type":"code","title":"Other conditions related to polyarteritis nodosa","codeAlso":[],"includes":["autoimmune disease NOS","collagen (vascular) disease NOS","systemic autoimmune disease","systemic collagen (vascular) disease"],"modern_v":"official26","codeFirst":[],"excludes1":["microscopic polyarteritis (M31.7)","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":["M30","M30.0","M30.1","M30.2","M30.3"],"inclusionTerms":["Polyangiitis overlap syndrome"],"sibling_titles":{"code":"M30.3","title":"Mucocutaneous lymph node syndrome [Kawasaki]","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Other conditions related to polyarteritis nodosa is a billable ICD-10-CM diagnosis code (M30.8). Includes: autoimmune disease NOS; collagen (vascular) disease NOS; systemic autoimmune disease; systemic collagen (vascular) disease. Inclusion terms: Polyangiitis overlap syndrome. Excludes1 (not coded here): microscopic polyarteritis (M31.7); autoimmune disease, single organ or single cell-type -code to relevant condition category.","officialDefinition":"Other conditions related to polyarteritis nodosa is a billable ICD-10-CM diagnosis code (M30.8). Includes: autoimmune disease NOS; collagen (vascular) disease NOS; systemic autoimmune disease; systemic collagen (vascular) disease. Inclusion terms: Polyangiitis overlap syndrome. Excludes1 (not coded here): microscopic polyarteritis (M31.7); autoimmune disease, single organ or single cell-type -code to relevant condition category.","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":""}