E10.A Type 1 diabetes mellitus, presymptomatic

The ICD-10-CM code for Type 1 diabetes mellitus, presymptomatic is E10.A (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

4: Endocrine, nutritional and metabolic diseases (E00-E89)

Section

E08-E13: Diabetes mellitus (E08-E13)

Category E10

65 codes (48 billable)

FY2026 Status

Introduced in FY2025

Also Known As

ICD-10-CM Alphabetic Index entries that lead to E10.A:

• Diabetes, diabetic (mellitus) (sugar) › type 1 › early-stage

Inclusion Terms

• Early-stage type 1 diabetes mellitus

Official Coding Guidelines

Presymptomatic type 1 diabetes—use E10.A-

(a) Presymptomatic Type 1 Diabetes Mellitus Codes E10.A-, Type 1 diabetes mellitus, presymptomatic, are assigned for early-stage type 1 diabetes that predates the onset of symptoms.

Diabetes mellitus (TOC entry)

a. Diabetes mellitus ................................................................................................................... 39

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool

Cite This Page

Reference E10.A with the canonical source and edition:

E10.A — Type 1 diabetes mellitus, presymptomatic. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/E10.A

Canonical URL: https://icd10codingpro.com/codes/E10.A