ICD-10 Code E09.630 – Drug or chemical induced diabetes mellitus with periodontal disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E09.630 – Drug or chemical induced diabetes mellitus with periodontal disease
What it is
This code identifies diabetes caused by a drug or chemical, with periodontal disease present. Use it when the record links the diabetes to an external substance and also documents gum or supporting-tooth disease.
Clinical signs
Clinical features vary; refer to documentation. Periodontal disease may include inflamed gums, bleeding, pocketing, recession, or loosening of teeth, alongside documented diabetes attributed to medication or chemical exposure.
When to use this code
Use this code when the provider clearly documents drug- or chemical-induced diabetes and separately notes periodontal disease. It applies when both conditions are addressed in the same encounter or on the problem list, and the causal diabetes category is confirmed. Check documentation if the cause or oral condition is unclear.
Do not use for
Do not use this code for diabetes not caused by a drug or chemical, or for periodontal findings without documented diabetes. If the record only says “oral disease” or “gum disease,” verify that periodontal disease is specifically documented.
Coding tip
Confirm both the diabetes etiology and the periodontal diagnosis in the provider note before assigning E09.630.