ICD-10 codes for diabetes
Diabetes coding in ICD-10-CM is built on combination codes: the fourth and fifth characters encode the complication. E11.9 (type 2 without complications) is correct only when the record genuinely documents no complications.
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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.
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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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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.
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Type 2 diabetes ICD-10 codes
Start with the primary code, then move to a more specific related code when the documentation supports it.
| Code | Description | System |
|---|---|---|
E11.9 | Type 2 diabetes mellitus without complications | ICD-10-CM |
E11.65 | Type 2 diabetes with hyperglycemia | ICD-10-CM |
E11.22 | Type 2 diabetes with diabetic chronic kidney disease Code also the CKD stage (N18.-) | ICD-10-CM |
E11.40 | Type 2 diabetes with diabetic neuropathy, unspecified | ICD-10-CM |
E11.319 | Type 2 diabetes with unspecified diabetic retinopathy without macular edema | ICD-10-CM |
E10.9 | Type 1 diabetes mellitus without complications | ICD-10-CM |
Z79.4 | Long-term (current) use of insulin Add for type 2 patients on insulin | ICD-10-CM |
How to choose the right code
Pick the combination code that matches the documented complication — do not code E11.9 plus a separate complication code. Documented hyperglycemia moves you to E11.65; kidney involvement to E11.2- plus the CKD stage; neuropathy to E11.4-; retinopathy to E11.3-. Add Z79.4 when a type 2 patient uses insulin long-term.
Documentation example
“Type 2 diabetes review. HbA1c 8.9%, up from 7.8%. Reports polyuria this month. No visual symptoms; last retinal screen normal. Monofilament exam normal. Started empagliflozin 10 mg; continue metformin.”
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
When is E11.9 wrong?
Whenever a complication is documented. Elevated glucose or HbA1c with symptoms documented as hyperglycemia should be coded E11.65, not E11.9 — the combination code carries the complication.
How do I code diabetes with CKD?
Use E11.22 (type 2 with diabetic CKD) together with the CKD stage code from N18.-. Both codes are required.
Can AI find the right diabetes combination code?
Notat extracts the documented complications as clinical facts and suggests the matching combination codes with their evidence, so you can verify against the note before accepting.
Related ICD-10 guides
Keep moving through the condition hub, or open the general medical coding guide for more coding systems and extractors.