ICD-10 Code E09.11 – Drug or chemical induced diabetes mellitus with ketoacidosis with coma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E09.11 – Drug or chemical induced diabetes mellitus with ketoacidosis with coma
What it is
This code identifies diabetes caused by a drug or chemical exposure, complicated by ketoacidosis and coma. Use it when documentation links the diabetes to the offending substance and confirms coma.
Clinical signs
Typical findings include hyperglycemia with ketoacidosis and altered mental status progressing to coma. Clinical features vary; refer to documentation for the specific substance, severity, and whether coma is explicitly documented.
When to use this code
Use E09.11 when the record states drug- or chemical-induced diabetes mellitus with ketoacidosis and coma. The causal agent should be documented, such as a medication or toxin, and the diabetes should not be coded as type 1 or type 2. If coma is not documented, check documentation before assigning this code.
Do not use for
Do not use this code for diabetes not caused by a drug or chemical, or for ketoacidosis without coma. If the chart does not clearly link the condition to an offending substance, check documentation.
Coding tip
Verify both the adverse substance relationship and the presence of coma before coding E09.11.