CCDS Respiratory Failure & Vents 5 — Questions and Answers
Question 1: During a CDI review, a patient is noted to have a tracheostomy placed on day 4 of mechanical ventilation. What CDI consideration applies?
- Tracheostomy placement resets the mechanical ventilation duration clock
- The pre-tracheostomy ventilator hours and post-tracheostomy hours are combined for duration coding (Correct answer)
- Only hours after tracheostomy count toward ventilation duration
- Tracheostomy eliminates the need for ventilation duration coding
Correct answer: The pre-tracheostomy ventilator hours and post-tracheostomy hours are combined for duration coding
ICD-10-PCS guidelines require totaling all hours of continuous mechanical ventilation, including time before and after tracheostomy, to determine duration code selection.
Question 2: A patient is documented with 'ventilator-associated pneumonia (VAP).' Which additional ICD-10-CM code must accompany the VAP code J95.851?
- A code for the causative organism (Correct answer)
- A code for the mechanical ventilation
- A code for the underlying lung disease
- A code for sepsis
Correct answer: A code for the causative organism
ICD-10-CM instructs coders to use an additional code to identify the organism (e.g., Pseudomonas, MRSA) when coding VAP (J95.851).
Question 3: A CCDS reviews a case where respiratory failure is listed as a complication of surgery. What ICD-10-CM category captures postprocedural respiratory failure?
- J96 – Respiratory failure
- J95 – Intraoperative and postprocedural complications of respiratory system (Correct answer)
- J98 – Other respiratory disorders
- J93 – Pneumothorax and air leak
Correct answer: J95 – Intraoperative and postprocedural complications of respiratory system
J95 (Intraoperative and postprocedural complications and disorders of respiratory system) contains codes for postprocedural respiratory failure such as J95.821 and J95.822.
Question 4: Which PaO2/FiO2 (P/F) ratio threshold defines severe ARDS according to the Berlin Definition?
- Less than 300 mmHg
- Less than 200 mmHg
- Less than 100 mmHg (Correct answer)
- Less than 400 mmHg
Correct answer: Less than 100 mmHg
The Berlin Definition classifies ARDS as severe when the P/F ratio is less than 100 mmHg on PEEP ≥5 cmH2O.
Question 5: A patient is being weaned from mechanical ventilation using a spontaneous breathing trial (SBT). If the SBT fails, what CDI documentation opportunity arises?
- Document the failed SBT as a procedure complication
- Query for the underlying etiology causing weaning failure to ensure accurate diagnosis capture (Correct answer)
- Assign a code for prolonged mechanical ventilation immediately
- No CDI action is needed until extubation occurs
Correct answer: Query for the underlying etiology causing weaning failure to ensure accurate diagnosis capture
A failed SBT signals that the underlying condition (e.g., diaphragmatic weakness, cardiac dysfunction, COPD) may not be fully documented, making it a key CDI query opportunity.
Question 6: Which ICD-10-CM code correctly represents acute hypoxic respiratory failure with hypercapnia?
- J96.00
- J96.01
- J96.02
- J96.09 (Correct answer)
Correct answer: J96.09
J96.09 represents acute respiratory failure with other specified features; J96.01 is hypoxic and J96.02 is hypercapnic, so combined hypoxic-hypercapnic acute failure is coded J96.09.
Question 7: A provider documents 'the patient required intubation due to inability to protect the airway.' From a CDI perspective, what query is most appropriate?
- Query for the specific underlying neurological or medical etiology causing airway compromise (Correct answer)
- Query to confirm mechanical ventilation duration
- Query to add a respiratory failure code regardless of etiology
- No query is needed; airway protection intubation is a procedure, not a diagnosis
Correct answer: Query for the specific underlying neurological or medical etiology causing airway compromise
'Inability to protect the airway' is a clinical finding, not a diagnosis; the CCDS should query for the underlying cause (e.g., altered mental status, stroke, drug overdose) to support complete diagnostic coding.
CCDS Respiratory Failure & Vents 5
During a CDI review, a patient is noted to have a tracheostomy placed on day 4 of mechanical ventilation.
What CDI consideration applies?