ICD-10 Code E08.8 – Diabetes mellitus due to underlying condition with unspecified complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E08.8 – Diabetes mellitus due to underlying condition with unspecified complications
What it is
E08.8 identifies diabetes caused by another underlying condition when the record does not specify the complication. Use it when diabetes is secondary to a documented cause, but the complication is not named.
Clinical signs
Clinical features vary; refer to documentation. You may see signs of diabetes plus an unspecified complication, but the chart must link the diabetes to an underlying condition and note that the complication is not further described.
When to use this code
Use this code when the provider documents diabetes due to another condition and records a complication without naming it. It also fits cases where the underlying cause is known, but the complication is not detailed enough for a more specific E08 code.
Do not assume a complication type from labs or symptoms alone. If the note identifies the complication, code to the more specific diabetes code and follow any required additional codes for the underlying condition.
Do not use for
Do not use E08.8 for primary diabetes, gestational diabetes, or diabetes without an underlying condition. Also avoid it when the complication is specified and a more precise code is available.
Coding tip
Check that the record clearly states diabetes is due to another condition before assigning E08.8.