ICD-10 E10
Non-Billable HeaderType 1 diabetes mellitus
About ICD-10-CM E10
ICD-10-CM code E10 represents Type 1 diabetes mellitus. This is a non-billable header code in the Endocrine, Nutritional, and Metabolic chapter (block E10). The 2026 edition of ICD-10-CM E10 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with E10. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- diabetes mellitus due to underlying condition (E08.-)
- drug or chemical induced diabetes mellitus (E09.-)
- gestational diabetes (O24.4-)
- hyperglycemia NOS (R73.9)
- neonatal diabetes mellitus (P70.2)
- postpancreatectomy diabetes mellitus (E13.-)
- postprocedural diabetes mellitus (E13.-)
- secondary diabetes mellitus NEC (E13.-)
- type 2 diabetes mellitus (E11.-)
Includes
- brittle diabetes (mellitus)
- diabetes (mellitus) due to autoimmune process
- diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction
- idiopathic diabetes (mellitus)
- juvenile onset diabetes (mellitus)
- ketosis-prone diabetes (mellitus)
Medicare LCD Coverage for E10
Local Coverage Determinations (LCDs) from CMS MACs that list E10 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing E10.
1 Aetna
1 Cigna
CPT Codes Commonly Billed with E10
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To E10
Other codes in section E08-E13 (Diabetes mellitus).
ICD-10 E10, Billing FAQ
Is ICD-10 code E10 billable? +
No, E10 is a non-billable header code. Use a more specific child code from block E10 when submitting claims.
What codes are Type 1 Excludes for E10? +
Type 1 Excludes (never code together with E10): diabetes mellitus due to underlying condition (E08.-); drug or chemical induced diabetes mellitus (E09.-); gestational diabetes (O24.4-)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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