ICD-10 Code E08.620 – Diabetes mellitus due to underlying condition with diabetic dermatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E08.620 – Diabetes mellitus due to underlying condition with diabetic dermatitis
What it is
This code identifies diabetes caused by another underlying condition, with diabetic dermatitis affecting the skin. Use it when the record links the diabetes to the underlying cause and documents dermatitis as a diabetic manifestation.
Clinical signs
Clinical features vary; refer to documentation. Dermatitis may appear as inflamed, irritated, itchy, or dry skin in a patient with diabetes, and the chart should support the diabetic relationship.
When to use this code
Use this code when the provider documents diabetes due to another condition and specifically notes diabetic dermatitis. You should code the underlying condition first when instructed by ICD-10-CM guidelines. If the dermatitis is present but not described as diabetic, check documentation.
Do not use for
Do not use this code for diabetes without a documented underlying cause, or for nonspecific dermatitis without a diabetes link. If the record does not clearly support diabetic dermatitis, use a more appropriate diabetes or skin code.
Coding tip
Verify both the secondary diabetes cause and the skin manifestation before assigning E08.620.