Type 2 diabetes ICD-10 code
The ICD-10-CM code for type 2 diabetes is E11.9 — type 2 diabetes mellitus without complications. It is billable and valid for submission on a claim. There are 16 related codes, and which one you use depends on what the documentation supports.
Also written as dm2, t2dm, diabetes mellitus type 2.
The mistake coders make here
E11.9 means WITHOUT complications. ICD-10-CM presumes a link between diabetes and a condition when the note says 'with', 'due to', or 'diabetic' — so a documented complication usually means a combination code, not E11.9 plus a separate code.
All ICD-10-CM codes for type 2 diabetes
13 of 16 are billable. Green means you can submit it as-is.
| Code | Use it when |
|---|---|
| E11.9 | Type 2 diabetes mellitus without complications |
| E11.65 | Type 2 diabetes mellitus with hyperglycemia |
| E11.22 | Type 2 diabetes mellitus with diabetic chronic kidney disease |
| E11.21 | Type 2 diabetes mellitus with diabetic nephropathy |
| E11.42 | Type 2 diabetes mellitus with diabetic polyneuropathy |
| E11.A | Type 2 diabetes mellitus without complications in remission |
| E11.630 | Type 2 diabetes mellitus with periodontal disease |
| E11.641 | Type 2 diabetes mellitus with hypoglycemia with coma |
| E11.628 | Type 2 diabetes mellitus with other skin complications |
| E11.638 | Type 2 diabetes mellitus with other oral complications |
| E11.649 | Type 2 diabetes mellitus with hypoglycemia without coma |
| O24.11 | Pre-existing type 2 diabetes mellitus, in pregnancynot billable on its own |
| O24.12 | Pre-existing type 2 diabetes mellitus, in childbirth |
| E11 | Type 2 diabetes mellitusnot billable on its own |
| O24.13 | Pre-existing type 2 diabetes mellitus, in the puerperium |
| E11.1 | Type 2 diabetes mellitus with ketoacidosisnot billable on its own |
Not sure which one? Let the documentation decide.
Answer a few questions about what the chart actually says and we’ll walk you to the code that follows from it.