E09.21 — Drug or chemical induced diabetes mellitus with diabetic nephropathy
E09.21 is a billable, specific ICD-10-CM code for drug or chemical induced diabetes mellitus with diabetic nephropathy. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Drug or chemical induced diabetes mellitus with intercapillary glomerulosclerosis
- Drug or chemical induced diabetes mellitus with intracapillary glomerulonephrosis
- Drug or chemical induced diabetes mellitus with Kimmelstiel-Wilson disease
Risk adjustment
E09.21 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
E09.21 is named in 21 Medicare coverage policies — 21 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52464Glucose Monitor - Policy Article
- A52501Therapeutic Shoes for Persons with Diabetes - Policy Article
- A52507External Infusion Pumps - Policy Article
- A52996Billing and Coding: Routine Foot Care
How E09.21 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E09.21.
- Diabetes, diabetic›due to drug or chemical›with›glomerulonephrosis, intracapillary
- Diabetes, diabetic›due to drug or chemical›with›glomerulosclerosis, intercapillary
- Diabetes, diabetic›due to drug or chemical›with›Kimmelstiel-Wilson disease
- Diabetes, diabetic›due to drug or chemical›with›nephropathy
Related codes at this level
Codes that share E09.2. If E09.21 is not quite right, the correct code is usually one of these.
Questions about E09.21
- Is E09.21 a billable ICD-10-CM code?
- Yes. E09.21 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E09.21 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).