ICD-10 Code E09.51 – Drug or chemical induced diabetes mellitus with diabetic peripheral angiopathy without gangrene (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E09.51 – Drug or chemical induced diabetes mellitus with diabetic peripheral angiopathy without gangrene
What it is
This code identifies diabetes caused by a drug or chemical, with peripheral blood vessel disease in the legs or feet, but without gangrene. Use it when the diabetes and vascular complication are both documented.
Clinical signs
Findings may include diabetes after exposure to a causative medication or chemical, plus peripheral angiopathy such as poor circulation, cool extremities, diminished pulses, or ischemic pain. Clinical features vary; refer to documentation.
When to use this code
Use E09.51 when the record clearly links diabetes to a drug or chemical and also documents peripheral angiopathy without gangrene. You should code it for complications affecting the lower extremities when gangrene is not present.
If the provider does not specify the causal agent or vascular complication, check documentation before assigning this code. The diabetes type should not be coded as primary diabetes unless the record supports a drug-induced cause.
Do not use for
Do not use this code for diabetes with gangrene, which requires a different code. Do not use it when peripheral vascular disease is present without documented drug- or chemical-induced diabetes.
Coding tip
Verify both elements in the note: the external cause of diabetes and the peripheral angiopathy, because missing either one changes the code selection.