ICD-10 Code E10.620 – Type 1 diabetes mellitus with diabetic dermatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E10.620 – Type 1 diabetes mellitus with diabetic dermatitis
What it is
E10.620 identifies type 1 diabetes mellitus complicated by diabetic dermatitis. Use it when the record links a skin inflammatory condition to type 1 diabetes, not simply when both problems are present.
Clinical signs
Clinical features vary; refer to documentation. Notes may describe dry, itchy, inflamed, or cracked skin in a patient with type 1 diabetes, with the provider attributing the dermatitis to the diabetes.
When to use this code
Use this code when the clinician documents diabetic dermatitis in a patient with type 1 diabetes. It supports coding a diabetes complication when the skin condition is clearly linked to the diabetes in the assessment or impression.
Do not assume the linkage from nonspecific rashes, eczema, or skin irritation alone. If the record does not state diabetic dermatitis or a diabetic cause, check documentation before assigning E10.620.
Do not use for
Do not use this code for dermatitis unrelated to diabetes, such as contact dermatitis, atopic dermatitis, or infection-related skin disease. Do not code it when the chart only mentions a skin complaint without a diabetic connection.
Coding tip
Look for explicit provider wording that ties the dermatitis to type 1 diabetes before assigning E10.620.