Free CCDS Respiratory Failure & Vents Questions and Answers 1 — Questions and Answers
Question 1: A patient with end-stage COPD is admitted with pneumonia. The physician documents 'acute on chronic respiratory failure'. To ensure proper coding and sequencing, what should the CDS query for?
- The patient's baseline oxygen saturation.
- Whether the acute respiratory failure is hypoxic or hypercapnic.
- Clarification of the linkage, specifically if the acute respiratory failure is due to the pneumonia. (Correct answer)
- The date of the patient's last pulmonary function test.
Correct answer: Clarification of the linkage, specifically if the acute respiratory failure is due to the pneumonia.
For coding purposes, it is critical to link the acute respiratory failure to its cause. While the COPD is the underlying chronic condition, the pneumonia is the acute event that precipitated the decompensation. Linking the acute respiratory failure to the pneumonia is the most specific and accurate representation of the admission.
Question 2: A patient is placed on mechanical ventilation for 48 hours. The physician documents 'intubated for airway protection' in the progress notes. What is the most appropriate action for the CDS?
- No action is needed, as 'intubated' is sufficient for coding.
- Query the physician to clarify the underlying medical reason for the intubation, such as acute respiratory failure. (Correct answer)
- Inform the coder to add the procedure code for mechanical ventilation without a supporting diagnosis.
- Query the physician to document the exact start and stop times of ventilation.
Correct answer: Query the physician to clarify the underlying medical reason for the intubation, such as acute respiratory failure.
Mechanical ventilation is only coded when it is used for acute respiratory failure or other specific conditions. 'Airway protection' is not a codeable reason. The CDS must query to clarify the underlying medical necessity for the intubation, using clinical indicators to ask if a more specific diagnosis, like acute respiratory failure, is appropriate.
Question 3: A patient has a PaO2 of 58 mmHg on 4L nasal cannula and a respiratory rate of 28. The physician's assessment is 'hypoxia'. What type of query would be most appropriate?
- A query asking the physician to document 'acute hypoxic respiratory failure'.
- No query is needed as 'hypoxia' is a sufficient diagnosis.
- A query presenting the clinical indicators and asking if a more specific diagnosis can be made. (Correct answer)
- A query asking to increase the patient's oxygen level.
Correct answer: A query presenting the clinical indicators and asking if a more specific diagnosis can be made.
The clinical indicators (low PaO2 despite supplemental oxygen, tachypnea) are strongly suggestive of acute respiratory failure. The term 'hypoxia' is a symptom, not a definitive diagnosis. A query is needed to ask the physician if these clinical findings represent a more significant diagnosis like acute respiratory failure.
Question 4: What is the key difference in documentation required for coding 'acute on chronic hypercapnic respiratory failure' versus 'chronic hypercapnic respiratory failure'?
- Documentation of any pCO2 level above 45 mmHg.
- Documentation of an acute worsening or decompensation from the patient's baseline respiratory status. (Correct answer)
- A physician's note simply stating the patient has a history of COPD.
- The patient's use of home oxygen.
Correct answer: Documentation of an acute worsening or decompensation from the patient's baseline respiratory status.
To support the 'acute on chronic' diagnosis, there must be documentation of an acute exacerbation or decompensation from the patient's baseline state. This is typically evidenced by an acute worsening of blood gases (e.g., a significant rise in pCO2 from baseline), increased respiratory distress, or a new precipitating event like pneumonia.
Question 5: A patient is on a ventilator for 6 days. On day 7, the family decides to withdraw care, and the physician documents 'terminal extubation'. Why is this documentation important?
- It allows the hospital to bill for an extra day of ventilator management.
- It is required for the death certificate.
- It differentiates withdrawal of care from a failed weaning attempt, which can impact quality metrics. (Correct answer)
- It is the only way to stop the clock for counting ventilator days.
Correct answer: It differentiates withdrawal of care from a failed weaning attempt, which can impact quality metrics.
The term 'terminal extubation' or 'terminal wean' clarifies that the removal from the ventilator is part of the end-of-life process, not a failure to wean or a reflection of the quality of care. This distinction is important for quality metrics and accurately portraying the clinical circumstances.
Question 6: A patient with acute respiratory distress is placed on BiPAP. To support a diagnosis of acute respiratory failure, the CDS should look for documentation of:
- A history of obstructive sleep apnea (OSA).
- The specific BiPAP pressure settings.
- The patient's report of sleeping better with the machine.
- Clinical indicators such as tachypnea, accessory muscle use, and abnormal arterial blood gases. (Correct answer)
Correct answer: Clinical indicators such as tachypnea, accessory muscle use, and abnormal arterial blood gases.
While BiPAP can be used for conditions like OSA, its use for acute respiratory failure must be supported by clinical evidence of respiratory compromise. Documentation of abnormal gas exchange (hypoxia, hypercapnia) and physical signs like tachypnea or use of accessory muscles provides the necessary clinical validation for the diagnosis.
Free CCDS Respiratory Failure & Vents Questions and Answers 1
A patient with end-stage COPD is admitted with pneumonia.
The physician documents 'acute on chronic respiratory failure'.
To ensure proper coding and sequencing, what should the CDS query for?