Other specified diabetes mellitus with periodontal disease

This code identifies a form of diabetes mellitus, not classified as Type 1 or Type 2, that is specifically complicated by periodontal disease. This indicates a direct association where the diabetes is contributing to or exacerbating the patient's gum and supporting tissue inflammation and infection.

Apply this code when documentation clearly states "other specified diabetes mellitus" and explicitly links it to a diagnosis of periodontal disease. This is appropriate for patients with diabetes secondary to other conditions (e.g., cystic fibrosis, pancreatectomy) or drug-induced diabetes, who also present with periodontitis.

• Ensure the physician's documentation specifies "other specified diabetes mellitus" and not Type 1 or Type 2.
• Verify that the medical record explicitly connects the diabetes to the periodontal disease.
• Sequence the diabetes code first, as it is the underlying systemic condition impacting the periodontal disease.