{"code":"N06.21","type":"code","title":"Primary membranous nephropathy with isolated proteinuria","codeAlso":["any associated kidney failure (N17-N19)."],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["primary membranous nephropathy with nephrotic syndrome (N04.21)","Proteinuria not associated with specific morphologic lesions (R80.0)","hypertensive chronic kidney disease (I12.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":["Idiopathic membranous nephropathy (with isolated proteinuria)","Primary membranous nephropathy, NOS"],"useAdditionalCode":[],"clinicalDefinition":"Primary membranous nephropathy with isolated proteinuria is a billable ICD-10-CM diagnosis code (N06.21). Inclusion terms: Idiopathic membranous nephropathy (with isolated proteinuria); Primary membranous nephropathy, NOS. Excludes1 (not coded here): primary membranous nephropathy with nephrotic syndrome (N04.21); Proteinuria not associated with specific morphologic lesions (R80.0); hypertensive chronic kidney disease (I12.-). Code also: any associated kidney failure (N17-N19)..","officialDefinition":"Primary membranous nephropathy with isolated proteinuria is a billable ICD-10-CM diagnosis code (N06.21). Inclusion terms: Idiopathic membranous nephropathy (with isolated proteinuria); Primary membranous nephropathy, NOS. Excludes1 (not coded here): primary membranous nephropathy with nephrotic syndrome (N04.21); Proteinuria not associated with specific morphologic lesions (R80.0); hypertensive chronic kidney disease (I12.-). Code also: any associated kidney failure (N17-N19)..","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":""}