CKD Staging Tool
KDIGO 2022 · Complete Risk Matrix · Complications & Management Checklist
Patient details
18 years and above
Male
Female
< 3 months
> 3 months
Kidney function markers
mg/dL
mg/g (albumin-to-creatinine)
Protein-to-creatinine ratio (g/g)
Blood markers (optional — for complications screening)
g/dL — screens for CKD anaemia
mEq/L — hyperkalaemia risk
mg/dL — bone mineral disease
mmHg — target <130/80 in CKD
% — diabetic nephropathy marker
Cause of CKD & comorbidities
ⓘ KDIGO defines CKD as abnormalities of kidney structure or function persisting for more than 3 months. Staging requires both eGFR category (G1–G5) and albuminuria category (A1–A3) to determine the complete risk profile.
Please enter valid age (18+) and serum creatinine (0.1–20 mg/dL). ACR is required for full staging.
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KDIGO risk
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eGFR
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GFR Category
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ACR Category
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Risk Level
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KDIGO 2022 Prognosis Risk Matrix — your position is highlighted
| GFR / ACR | A1 <30 mg/g Normal |
A2 30–299 mg/g Moderate |
A3 ≥300 mg/g Severe |
|---|
Low risk
Moderately increased
High risk
Very high risk
Complications screening
Management checklist
Clinical flags
ⓘ For clinical decision support only. Not a substitute for physician judgment.
CKD staging and risk matrix per KDIGO 2022 Clinical Practice Guideline for CKD Evaluation and Management.
eGFR calculated using CKD-EPI 2021 creatinine equation (Inker LA et al., NEJM 2021;385:1737–1749).
CKD diagnosis requires abnormalities persisting for more than 3 months. Single measurements are insufficient
for diagnosis. Always confirm with repeat testing and clinical assessment.