E13
Non-billableOther specified diabetes mellitus
E13 is the ICD-10-CM code for Other specified diabetes mellitus. It is a non-billable category code — use a more specific child code such as E13.0 for billing.
- Status
- Header (non-billable)
- Chapter
- E00-E89
- Subcodes
- 9
- Edition
- FY2026
E00-E89 Endocrine, nutritional and metabolic diseases
What this means — in plain language
MedlinePlus · NIHWhat is diabetes? Diabetes, also known as diabetes mellitus, is a disease in which your blood glucose , or blood sugar, levels are too high. Glucose is your body's main source of energy. Your body can make glucose, but it also comes from the food you eat. Insulin is a hormone made by your pancreas. Insulin helps move glucose from your bloodstream into your cells, where it can be used for energy. If you have…
Read more about Diabetes at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
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.-)
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Frequently asked questions
- What is ICD-10 code E13?
- E13 is the ICD-10-CM code for "Other specified diabetes mellitus". It falls under E00-E89 Endocrine, nutritional and metabolic diseases.
- Is E13 a billable code?
- No — E13 is a non-billable header code. Use a more specific child code (such as E13.0) for billing.
- What is excluded from E13?
- 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.-).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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