Acute metabolic acidosis

This code signifies a rapid onset of an acid-base imbalance characterized by a decrease in arterial pH and bicarbonate concentration. It reflects an excessive accumulation of acid or a significant loss of bicarbonate in the body, leading to systemic physiological disruption.

Use this code for patients presenting with laboratory confirmed acute metabolic acidosis, often due to conditions like diabetic ketoacidosis, lactic acidosis, renal failure, or certain intoxications. Documentation should clearly state "acute metabolic acidosis" and include supporting lab values (e.g., low pH, low bicarbonate).

• Always confirm the "acute" nature of the acidosis; do not use for chronic forms.
• Code the underlying cause of the metabolic acidosis first, if known and documented.
• Distinguish from respiratory acidosis; this code specifically refers to metabolic etiology.