Other specified diabetes mellitus with hyperglycemia

This code signifies a form of diabetes mellitus that is not type 1, type 2, or gestational, and is specifically complicated by elevated blood glucose levels. It encompasses various secondary forms of diabetes or those due to genetic defects, where the primary manifestation is persistent hyperglycemia.

Apply this code when documentation clearly indicates a diagnosis of "other specified diabetes mellitus" (e.g., drug-induced diabetes, post-pancreatectomy diabetes, genetic defects in beta-cell function) and explicitly states the presence of hyperglycemia. This code requires physician documentation of both the specific type of diabetes and the hyperglycemic state.

• Always sequence the underlying cause of the "other specified diabetes mellitus" first, if applicable and known.
• Do not use this code for unspecified diabetes or for type 1 or type 2 diabetes with hyperglycemia; specific codes exist for those conditions.
• Ensure documentation differentiates between transient hyperglycemia and chronic, clinically significant hyperglycemia associated with the diabetes.