Type 2 diabetes mellitus with ketoacidosis without coma

This code signifies a diagnosis of type 2 diabetes that is complicated by diabetic ketoacidosis (DKA), a serious metabolic state characterized by hyperglycemia, ketonemia, and metabolic acidosis. Importantly, the patient is conscious and not experiencing a comatose state due to the DKA.

Apply this code when documentation explicitly states type 2 diabetes and ketoacidosis are present, and the patient's mental status is described as alert or not comatose. This typically occurs in emergency department visits, inpatient admissions, or urgent care settings where DKA is being managed. Supporting documentation includes laboratory findings (e.g., high glucose, positive ketones, low pH), physician notes detailing DKA, and a clear diagnosis of type 2 diabetes.

• Always confirm the type of diabetes (type 1 vs. type 2) and the presence/absence of coma.
• Do not use this code if the patient is in a diabetic coma; a different subcategory would apply.
• Sequence this code as the principal diagnosis when DKA is the reason for admission or the primary focus of the encounter.