ICD-10 Code E11.63 – Type 2 diabetes mellitus with oral complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E11.63 – Type 2 diabetes mellitus with oral complications
What it is
E11.63 identifies type 2 diabetes mellitus with oral complications. Use it when diabetes is documented as affecting the mouth, such as periodontal or other oral disease linked to the condition.
Clinical signs
Clinical features vary; refer to documentation. Oral findings may include gum disease, mouth infections, delayed healing, or other dentist- or clinician-documented complications associated with diabetes.
When to use this code
Use this code when the provider documents type 2 diabetes with a specific oral complication and links the two conditions. It is appropriate when the chart states the oral problem is due to, or associated with, diabetes. If the record only notes diabetes and a separate mouth condition without a causal link, check documentation.
Do not use for
Do not use this code for uncomplicated type 2 diabetes or for oral conditions that are unrelated to diabetes. If the oral diagnosis is not clearly connected to diabetes, code the conditions separately and verify the documentation.
Coding tip
Look for explicit provider wording connecting the oral complication to type 2 diabetes before assigning E11.63.