{"code":"N20","type":"category","title":"Calculus of kidney and ureter","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["nephrocalcinosis (E83.59)","that with hydronephrosis (N13.2)"],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["N20.0","N20.1","N20.2","N20.9"],"inclusionTerms":["Calculous pyelonephritis"],"sibling_titles":{"code":"N20.9","title":"Urinary calculus, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Calculus of kidney and ureter is a non-billable ICD-10-CM category code (N20). A more specific billable subcode must be selected for claims submission. Inclusion terms: Calculous pyelonephritis. Excludes1 (not coded here): nephrocalcinosis (E83.59); that with hydronephrosis (N13.2).","officialDefinition":"Calculus of kidney and ureter is a non-billable ICD-10-CM category code (N20). A more specific billable subcode must be selected for claims submission. Inclusion terms: Calculous pyelonephritis. Excludes1 (not coded here): nephrocalcinosis (E83.59); that with hydronephrosis (N13.2).","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":[{"code":"N20.0","title":"Calculus of kidney","description":"Calculus of kidney is a billable ICD-10-CM diagnosis code (N20.0). Inclusion terms: Nephrolithiasis NOS; Renal calculus; Renal stone; Staghorn calculus; Stone in kidney. Excludes1 (not coded here): nephrocalcinosis (E83.59); that with hydronephrosis (N13.2).","isBillable":true,"slug":"n20.0-calculus-of-kidney"},{"code":"N20.1","title":"Calculus of ureter","description":"Calculus of ureter is a billable ICD-10-CM diagnosis code (N20.1). Inclusion terms: Calculus of the ureteropelvic junction; Ureteric stone. Excludes1 (not coded here): nephrocalcinosis (E83.59); that with hydronephrosis (N13.2).","isBillable":true,"slug":"n20.1-calculus-of-ureter"},{"code":"N20.2","title":"Calculus of kidney with calculus of ureter","description":"Calculus of kidney with calculus of ureter is a billable ICD-10-CM diagnosis code (N20.2). Excludes1 (not coded here): nephrocalcinosis (E83.59); that with hydronephrosis (N13.2).","isBillable":true,"slug":"n20.2-calculus-of-kidney-with-calculus-of-ureter"},{"code":"N20.9","title":"Urinary calculus, unspecified","description":"Urinary calculus, unspecified is a billable ICD-10-CM diagnosis code (N20.9). Excludes1 (not coded here): nephrocalcinosis (E83.59); that with hydronephrosis (N13.2).","isBillable":true,"slug":"n20.9-urinary-calculus-unspecified"}],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}