{"code":"N18.31","type":"code","title":"Chronic kidney disease, stage 3a","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":["any associated:","diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22)","hypertensive chronic kidney disease (I12.-, I13.-)"],"excludes1":[],"excludes2":["congenital renal failure (P96.0)","drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)","extrarenal uremia (R39.2)","hemolytic-uremic syndrome (D59.3-)","hepatorenal syndrome (K76.7)","postpartum hepatorenal syndrome (O90.41)","posttraumatic renal failure (T79.5)","prerenal uremia (R39.2)","renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)","renal failure following labor and delivery (O90.41)","renal failure postprocedural (N99.0)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["N18","N18.1","N18.2","N18.3","N18.30","N18.32","N18.4","N18.5","N18.6","N18.9"],"inclusionTerms":[],"sibling_titles":{"code":"N18.9","title":"Chronic kidney disease, unspecified","isBillable":true},"useAdditionalCode":["code, if applicable, to identify:","associated cachexia (E88.A)","kidney transplant status (Z94.0)"],"clinicalDefinition":"Chronic kidney disease, stage 3a is a billable ICD-10-CM diagnosis code (N18.31). Excludes2 (not included here): congenital renal failure (P96.0); drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-); extrarenal uremia (R39.2); hemolytic-uremic syndrome (D59.3-); hepatorenal syndrome (K76.7); postpartum hepatorenal syndrome (O90.41); posttraumatic renal failure (T79.5); prerenal uremia (R39.","officialDefinition":"Chronic kidney disease, stage 3a is a billable ICD-10-CM diagnosis code (N18.31). Excludes2 (not included here): congenital renal failure (P96.0); drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-); extrarenal uremia (R39.2); hemolytic-uremic syndrome (D59.3-); hepatorenal syndrome (K76.7); postpartum hepatorenal syndrome (O90.41); posttraumatic renal failure (T79.5); prerenal uremia (R39.2); renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4); renal failure following labor and delivery (O90.41); renal failure postprocedural (N99.0). Code first: any associated:; diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22); hypertensive chronic kidney disease (I12.-, I13.-). Use additional code: code, if applicable, to identify:; associated cachexia (E88.A); kidney transplant status (Z94.0).","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":""}