ICD-10 Code E13.11 – Other specified diabetes mellitus with ketoacidosis with coma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E13.11 – Other specified diabetes mellitus with ketoacidosis with coma
What it is
This code identifies ketoacidosis with coma in a patient who has diabetes mellitus classified as other specified diabetes mellitus. Use it when the record clearly documents both ketoacidosis and coma.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include altered mental status or unresponsiveness consistent with coma, along with documented diabetic ketoacidosis.
When to use this code
Use E13.11 when the provider documents other specified diabetes mellitus complicated by ketoacidosis and coma. It applies when coma is explicitly present, not just severe illness or confusion. Confirm that the diabetes type fits the “other specified” category in the record.
Do not use for
Do not use this code if ketoacidosis is documented without coma, or if the diabetes type is not other specified diabetes mellitus. Check documentation when coma is absent or the diabetes classification is unclear.
Coding tip
Code coma only when it is documented as part of the diabetic ketoacidosis episode, and verify the diabetes category before assigning E13.11.