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E11.21 — Type 2 diabetes mellitus with diabetic nephropathy
E11.21
What this code means
Diabetic nephropathy is kidney damage caused by type 2 diabetes affecting the kidneys' filtering units.
Also called: diabetic nephropathy, diabetic kidney disease.
When this code is used
Used for type 2 diabetes mellitus with diabetic nephropathy.
Where it sits in ICD-10-CM
Code E11.21 belongs to Chapter 4: Endocrine, nutritional and metabolic diseases, which covers codes E00–E89 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Learn more about this condition
Related anatomy
Watch: related videos
Frequently asked questions
What is ICD-10-CM code E11.21?
E11.21 is the ICD-10-CM diagnosis code for “Type 2 diabetes mellitus with diabetic nephropathy”. Diabetic nephropathy is kidney damage caused by type 2 diabetes affecting the kidneys' filtering units.
When is code E11.21 used?
Used for type 2 diabetes mellitus with diabetic nephropathy. It belongs to Chapter 4 of ICD-10-CM (Endocrine, nutritional and metabolic diseases).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.