ICD-10 codes for CKD
CKD coding follows stage. When chronic kidney disease is due to diabetes or hypertension, combination codes often pair with the N18.- stage code.
Notat writes the note — and suggests these codes
The same FactsContext™ engine that extracts codes here turns the full consultation into a structured clinical note, with each code tied to the sentence that supports it. You review and sign every note.
Try AI-assisted extraction with visible medical context
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.
10 of 10 free extractions remaining this month.
How to use this tool
1
Paste or dictate a de-identified clinical note — a few sentences is enough.
2
Press Get codes. The coding system is fixed on this page.
3
Review each suggested code and its evidence, then copy the codes you agree with.
Clinical note
Extracted codes
Evidence stays attached for review.
Paste a clinical note or load an example, then press Get codes. Suggestions appear here with the supporting evidence.
AI suggestions must be reviewed by a clinician before use. Do not paste patient-identifying information into this free tool.
Notat automates the rest of the visit
This free tool previews one Notat capability. Notat also drafts the clinical note and keeps your documentation workflow moving — no credit card required.
Chronic kidney disease ICD-10 codes
Start with the primary code, then move to a more specific related code when the documentation supports it.
| Code | Description | System |
|---|---|---|
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 |
How to choose the right code
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.
Documentation example
“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.”
Suggested:
Not direct transcript guessing
FactsContext extracts clinical facts first: diagnoses, symptoms, negatives, findings, test results, medications, and plan decisions.
Raw facts stay usable
The clinician can read and reuse the extracted medical context directly, independent of the generated note.
Built for review
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.
Related ICD-10 guides
Keep moving through the condition hub, or open the general medical coding guide for more coding systems and extractors.