E13.21 – Other specified diabetes mellitus with diabetic nephropathy
ICD-10-CM 2027 diagnosis code · Diabetes mellitus
ICD-10-CM code
E13.21
- Code
E13.21(claims format:E1321)- Description
- Other specified diabetes mellitus with diabetic nephropathy
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 4. Endocrine, nutritional and metabolic diseases (E00-E89)
- Block
- E08-E13 Diabetes mellitus
- Parent codes
- E13 › E13.2
Notes for E13.21
Applicable to:
- Other specified diabetes mellitus with intercapillary glomerulosclerosis
- Other specified diabetes mellitus with intracapillary glomerulonephrosis
- Other specified diabetes mellitus with Kimmelstiel-Wilson disease
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
E13 – Other specified diabetes mellitus
Includes:
- diabetes mellitus due to genetic defects of beta-cell function
- diabetes mellitus due to genetic defects in insulin action
- postpancreatectomy diabetes mellitus
- postprocedural diabetes mellitus
- secondary diabetes mellitus NEC
Excludes1 (not coded here):
- diabetes (mellitus) due to autoimmune process (E10.-)
- diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction (E10.-)
- diabetes mellitus due to underlying condition (E08.-)
- drug or chemical induced diabetes mellitus (E09.-)
- gestational diabetes (O24.4-)
- neonatal diabetes mellitus (P70.2)
- type 1 diabetes mellitus (E10.-)
Index terms for E13.21
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in E13.2
Frequently asked questions
What is ICD-10 code E13.21?
E13.21 is the ICD-10-CM code for other specified diabetes mellitus with diabetic nephropathy, in the block E08-E13 (Diabetes mellitus).
Is E13.21 a billable code?
Yes. E13.21 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does E13.21 belong to?
It belongs to category E13 – Other specified diabetes mellitus.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.