CDIP Clinical Knowledge and Documentation Guidelines 2 — Questions and Answers
Question 1: When a patient is admitted with decompensated heart failure and also has stage 3 chronic kidney disease, how should the CDI specialist approach querying for a relationship between the two conditions?
- Query only if the physician has explicitly documented a causal link in the current encounter
- Query the physician if clinical indicators suggest a pathophysiological relationship even without explicit documentation (Correct answer)
- Assume the conditions are unrelated unless a nephrologist documents otherwise
- Document cardiorenal syndrome without querying since it is clinically obvious
Correct answer: Query the physician if clinical indicators suggest a pathophysiological relationship even without explicit documentation
CDI specialists should query when clinical indicators support a pathophysiological relationship, as the physician must establish and document any causal link.
Question 2: Which of the following best describes 'clinical validation' in the context of CDI?
- Confirming that a diagnosis code maps correctly to a reimbursement group
- Verifying that documented diagnoses are supported by clinical evidence in the medical record (Correct answer)
- Ensuring that all procedures are pre-authorized by the payer
- Reviewing the discharge summary for completeness before coding
Correct answer: Verifying that documented diagnoses are supported by clinical evidence in the medical record
Clinical validation confirms that diagnoses documented by the physician are substantiated by objective clinical findings, lab values, and other evidence.
Question 3: A patient's lab results show a serum lactate of 4.2 mmol/L and blood cultures are positive. The physician documents 'sepsis.' What additional documentation query may be appropriate?
- Query to downgrade to localized infection since sepsis is over-documented
- Query to clarify whether septic shock or organ dysfunction is present given the lactate elevation (Correct answer)
- No query is needed; sepsis documentation is complete
- Query only if the patient is in the ICU
Correct answer: Query to clarify whether septic shock or organ dysfunction is present given the lactate elevation
An elevated lactate ≥2 mmol/L with sepsis may indicate septic shock per Sepsis-3 criteria, warranting a query for clarification.
Question 4: Under ICD-10-CM guidelines, when two or more diagnoses equally meet the definition of principal diagnosis, what should guide final code selection?
- Always select the diagnosis with the higher relative weight
- Either condition may be sequenced first, guided by the attending physician's preference or coding guidelines (Correct answer)
- The condition with the most documentation should be principal
- The surgical diagnosis always takes priority
Correct answer: Either condition may be sequenced first, guided by the attending physician's preference or coding guidelines
When two conditions equally qualify as principal diagnosis, ICD-10-CM guidelines allow either to be sequenced first, and physician or coder judgment applies.
Question 5: A patient is admitted for a hip fracture following a mechanical fall. Which documentation element is most critical for accurate coding of the fracture?
- The patient's BMI and nutritional status
- Laterality, fracture type, and whether it is an initial encounter, subsequent, or sequela (Correct answer)
- The surgeon's preference for fixation method
- Insurance pre-authorization number
Correct answer: Laterality, fracture type, and whether it is an initial encounter, subsequent, or sequela
ICD-10-CM fracture codes require specificity including laterality, fracture type, and encounter type (initial, subsequent, or sequela).
Question 6: Which clinical indicator most strongly supports querying a physician to add 'acute respiratory failure' as a secondary diagnosis in a COPD exacerbation patient?
- Mild dyspnea on exertion noted in nursing notes
- PaO2 of 55 mmHg on arterial blood gas with oxygen therapy initiated (Correct answer)
- Patient using incentive spirometry as ordered
- Chest X-ray showing hyperinflation consistent with COPD
Correct answer: PaO2 of 55 mmHg on arterial blood gas with oxygen therapy initiated
A PaO2 of 55 mmHg meets objective criteria for hypoxemic respiratory failure and strongly supports a query for acute respiratory failure.
Question 7: When querying for malnutrition in a hospitalized patient, which set of criteria is most commonly referenced?
- APACHE II scoring system
- ASPEN/AND malnutrition consensus criteria including energy intake, weight loss, and loss of muscle mass (Correct answer)
- SOFA organ failure score
- NIHSS neurological deficit scale
Correct answer: ASPEN/AND malnutrition consensus criteria including energy intake, weight loss, and loss of muscle mass
The ASPEN/AND 2012 consensus criteria are the standard used in clinical practice and CDI to support documentation of malnutrition.
CDIP Clinical Knowledge and Documentation Guidelines 2
When a patient is admitted with decompensated heart failure and also has stage 3 chronic kidney disease, how should the CDI specialist approach querying for a relationship between the two conditions?