Chronic kidney disease ICD-10 codes
Start with the primary code, then move to a more specific related code when the documentation supports it.
N18.9 | Chronic kidney disease, unspecified | ICD-10-CM |
N18.31 | CKD stage 3a | ICD-10-CM |
N18.32 | CKD stage 3b | ICD-10-CM |
N18.4 | CKD stage 4 | ICD-10-CM |
N18.6 | End stage renal disease | ICD-10-CM |
I12.9 | Hypertensive CKD, stage 1-4 or unspecified CKD | ICD-10-CM |
E11.22 | Type 2 diabetes with diabetic CKD | ICD-10-CM |
Use the most specific documented CKD stage. Add hypertensive or diabetic CKD combination codes when the causal relationship is documented or presumed by coding guideline context. ESRD uses N18.6; dialysis status may require a separate status code.
“Type 2 diabetes and hypertension review. eGFR stable at 42 for 8 months, ACR elevated. Assessment: diabetic CKD stage 3b with hypertension. Continue ACE inhibitor and repeat renal profile in 3 months.”
Paste a note or record audio. Notat’s FactsContext™ engine extracts the raw clinical facts first, then suggests codes from that context so you can inspect the evidence before using anything.
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3
I10ICD-10-CM
Essential (primary) hypertension
Evidens: “Chief Complaint Elevated and fluctuating blood pressure readings.”
E78.5ICD-10-CM
Hyperlipidemia, unspecified
Evidens: “2. Hyperlipidemia. Clinically stable on atorvastatin.”
M19.90ICD-10-CM
Unspecified osteoarthritis, unspecified site
Evidens: “3. Osteoarthritis. Symptoms stable. Continue conservative management with acetaminophen as needed.”
FactsContext extracts clinical facts first: diagnoses, symptoms, negatives, findings, test results, medications, and plan decisions.
The clinician can read and reuse the extracted medical context directly, independent of the generated note.
AI suggestions are not a substitute for clinician judgment, payer rules, local coding policy, or the official code set.
FAQ
How do I code CKD stage 3?
Use N18.31 for stage 3a and N18.32 for stage 3b when documented. Use N18.30 only when stage 3 is documented without a/b specificity.
Do diabetes and CKD need two codes?
Usually yes: E11.22 for type 2 diabetes with diabetic CKD plus the N18.- code for CKD stage.
Can AI pull CKD stage from lab context?
Notat extracts eGFR, duration, CKD stage, diabetes, hypertension, and assessment as clinical facts, then shows the evidence for each suggested code.