AHA Coding Clinic® for ICD-9 - 1987 January - February

Weaning from Mechanical Ventilator

Note:As of October 1, 2004, code V46.1 was expanded to distinguish between respirator dependence status (V46.11) and encounters for respirator dependence during power failure (V46.12). Admissions, including transfers from another hospital, for weaning the patient from mechanical ventilatory support following an episode of respiratory failure (or pulmonary insufficiency), are coded as follows: If the patient is under active treatment for the underlying cause, such as treatment for pulmonary infection, emphysema, or chronic obstructive lung disease, code and sequence that condition first. Assign V46.1 as the secondary code for dependence on mechanical ventilator. If the patient...

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