Diabetes due to underlying condition w ketoacidosis w/o coma

This code signifies a patient experiencing diabetes mellitus that is a direct consequence of another underlying medical condition, complicated by the presence of ketoacidosis. The patient is conscious and not in a comatose state. This represents a serious metabolic derangement requiring immediate medical attention.

Use this code when documentation clearly states diabetes mellitus is secondary to another disease (e.g., pancreatitis, cystic fibrosis, hemochromatosis) and the patient presents with diabetic ketoacidosis (DKA) but is not comatose. Supporting documentation would include laboratory findings confirming ketoacidosis (e.g., elevated ketones, metabolic acidosis) and a clear link between the underlying condition and the diabetes.

• Always sequence the underlying condition first, followed by this code, as it is a manifestation code.
• Ensure documentation specifies "without coma" to differentiate from codes indicating a comatose state.
• Do not use this code for Type 1 or Type 2 diabetes with ketoacidosis; those have their own specific codes.