{"code":"M31.31","type":"code","title":"Wegener's granulomatosis with renal involvement","codeAlso":[],"includes":["autoimmune disease NOS","collagen (vascular) disease NOS","systemic autoimmune disease","systemic collagen (vascular) disease"],"modern_v":"official26","codeFirst":[],"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","M31.11","M31.19","M31.2","M31.3","M31.30","M31.4","M31.5","M31.6","M31.7","M31.8","M31.9"],"inclusionTerms":[],"sibling_titles":{"code":"M31.9","title":"Necrotizing vasculopathy, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Wegener's granulomatosis with renal involvement is a billable ICD-10-CM diagnosis code (M31.31). Includes: autoimmune disease NOS; collagen (vascular) disease NOS; systemic autoimmune disease; systemic collagen (vascular) disease. Excludes1 (not coded here): autoimmune disease, single organ or single cell-type -code to relevant condition category.","officialDefinition":"Wegener's granulomatosis with renal involvement is a billable ICD-10-CM diagnosis code (M31.31). Includes: autoimmune disease NOS; collagen (vascular) disease NOS; systemic autoimmune disease; systemic collagen (vascular) disease. Excludes1 (not coded here): 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":""}