Acute respiratory failure with hypercapnia

This code signifies a sudden and severe inability of the respiratory system to adequately exchange gases, leading to dangerously high levels of carbon dioxide (hypercapnia) in the blood. It indicates an acute onset or exacerbation of respiratory compromise where the lungs cannot effectively remove CO2.

Use this code when documentation clearly states acute respiratory failure with hypercapnia, often evidenced by elevated PaCO2 and respiratory acidosis. This applies to conditions like acute exacerbations of COPD, severe asthma attacks, or neuromuscular disorders causing acute ventilatory failure. Supporting documentation should include arterial blood gas (ABG) results or clinical notes explicitly stating hypercapnic respiratory failure.

• Always confirm the "acute" nature and the presence of "hypercapnia" in the physician's documentation.
• Do not confuse with acute respiratory failure, unspecified (J96.00) or acute respiratory failure with hypoxia (J96.01).
• Sequence this code as the principal diagnosis when it is the primary reason for admission, or as a secondary diagnosis when it is a significant co-morbidity requiring treatment.