{"code":"N28.81","type":"code","title":"Hypertrophy of kidney","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["hydroureter (N13.4)","ureteric stricture with hydronephrosis (N13.1)","ureteric stricture without hydronephrosis (N13.5)"],"excludes2":["disorders of kidney and ureter with urolithiasis (N20-N23)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["N28","N28.0","N28.1","N28.8","N28.82","N28.83","N28.84","N28.85","N28.86","N28.89","N28.9"],"inclusionTerms":[],"sibling_titles":{"code":"N28.9","title":"Disorder of kidney and ureter, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Hypertrophy of kidney is a billable ICD-10-CM diagnosis code (N28.81). Excludes1 (not coded here): hydroureter (N13.4); ureteric stricture with hydronephrosis (N13.1); ureteric stricture without hydronephrosis (N13.5). Excludes2 (not included here): disorders of kidney and ureter with urolithiasis (N20-N23).","officialDefinition":"Hypertrophy of kidney is a billable ICD-10-CM diagnosis code (N28.81). Excludes1 (not coded here): hydroureter (N13.4); ureteric stricture with hydronephrosis (N13.1); ureteric stricture without hydronephrosis (N13.5). Excludes2 (not included here): disorders of kidney and ureter with urolithiasis (N20-N23).","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":""}