Alkalosis

This code represents a metabolic disturbance characterized by an abnormally high alkalinity (pH > 7.45) of the blood and other body fluids. It indicates a primary acid-base imbalance where the body has an excess of bicarbonate or a deficit of carbonic acid.

Use this code when documentation explicitly states a diagnosis of alkalosis, often identified through arterial blood gas (ABG) analysis showing elevated pH. This can occur in conditions like hyperventilation (respiratory alkalosis) or excessive loss of gastric acid (metabolic alkalosis).

• Always specify the type of alkalosis (e.g., metabolic, respiratory) if documented, as more specific ICD-9-CM codes may exist.
• Ensure the documentation supports the diagnosis with laboratory findings (e.g., ABG results) or clinical signs.
• Consider sequencing this code after the underlying cause of the alkalosis, if known and documented.