Diabetes due to underlying condition w hyprosm w coma

This code signifies diabetes mellitus that has developed as a consequence of another underlying medical condition, specifically presenting with a hyperosmolar state and resulting in a comatose state. This is a severe, life-threatening complication characterized by extremely high blood glucose levels, severe dehydration, and altered mental status.

Use this code when documentation clearly indicates secondary diabetes (e.g., due to pancreatitis, cystic fibrosis, or drug-induced) and the patient is experiencing hyperosmolar hyperglycemic state (HHS) with a loss of consciousness. Supporting documentation should include laboratory values confirming severe hyperglycemia and hyperosmolarity, along with physician notes describing the underlying cause of diabetes and the patient's comatose state.

• Always sequence the underlying condition causing the diabetes first, followed by this code.
• Distinguish carefully between diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS); this code is specific to HHS with coma.
• Ensure the documentation explicitly states "coma" or a similar term indicating a profound loss of consciousness.