ICD-10 Code E09.8 – Drug or chemical induced diabetes mellitus with unspecified complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E09.8 – Drug or chemical induced diabetes mellitus with unspecified complications
What it is
This code identifies diabetes caused by a drug or chemical, when the record does not specify a particular complication. Use it when the diabetes is clearly linked to an external substance rather than primary diabetes.
Clinical signs
Clinical features vary; refer to documentation. You may see hyperglycemia, new-onset diabetes after exposure, or worsening glucose control after a causative medication or chemical is started.
When to use this code
Use E09.8 when the provider documents drug- or chemical-induced diabetes and notes an unspecified complication, or when a diabetes complication is present but not named. Confirm the causal substance and the diabetes relationship in the chart. If the record is unclear, check documentation before coding.
Do not use for
Do not use this code for type 1, type 2, or gestational diabetes. Also avoid it when the record names a specific diabetic complication that has its own code.
Coding tip
Query the provider if the causative drug, chemical, or complication is not documented clearly.