Coding Tips: New Codes for Type 1 Presymptomatic Diabetes Mellitus
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Type 1 Presymptomatic Diabetes Mellitus

New Codes (Valid for October 1, 2024 discharges)

Presymptomatic T1D consists of the presence of islet autoantibodies or biomarkers that attack islet autoantigens, such as insulin-producing beta cells in the pancreas. Multiple islet autoantibodies increase the risk of developing symptomatic T1D by 100% within a lifetime.

Subcategory E10.A, Type 1 diabetes mellitus, presymptomatic, has been created with new codes to capture distinct stages of presymptomatic type 1 diabetes (T1D) mellitus:

 

E10.A0, Type 1 diabetes mellitus, presymptomatic, unspecified

E10.A1, Type 1 diabetes mellitus, presymptomatic, Stage 1 (Multiple islet autoantibodies with normoglycemia)

E10.A2, Type 1 diabetes mellitus, presymptomatic, Stage 2 (One or more islet autoantibodies with dysglycemia)

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