CCDS Pressure Ulcers and Wound Care Documentation 4 — Questions and Answers
Question 1: A patient with a Stage 3 pressure ulcer on admission has the wound worsen to Stage 4 during hospitalization. How should the CDI specialist query this scenario?
- Query for 'hospital-acquired Stage 4 pressure ulcer' only
- Query to clarify whether the Stage 4 ulcer was present on admission or developed/worsened during the stay (Correct answer)
- Document as an unavoidable complication requiring no query
- Query for 'unstageable pressure ulcer' since the stage changed
Correct answer: Query to clarify whether the Stage 4 ulcer was present on admission or developed/worsened during the stay
The CDI specialist must clarify POA status because worsening from Stage 3 to Stage 4 may indicate a hospital-acquired condition, which has significant quality and reimbursement implications.
Question 2: Which ICD-10-CM code category is used to identify a pressure ulcer that cannot be clinically staged because the wound base is covered by eschar?
- L89 with a 0 suffix
- L89 with a 9 suffix indicating unstageable (Correct answer)
- L97 with an appropriate stage code
- L89 with a 5 suffix indicating deep tissue injury
Correct answer: L89 with a 9 suffix indicating unstageable
Unstageable pressure ulcers, obscured by slough or eschar, are coded with the 9 suffix under the L89 category in ICD-10-CM.
Question 3: A CDI specialist reviews documentation showing a sacral wound with 'full-thickness skin loss involving subcutaneous tissue but not bone or muscle.' Which pressure ulcer stage does this describe?
- Stage 1
- Stage 2
- Stage 3 (Correct answer)
- Stage 4
Correct answer: Stage 3
Stage 3 pressure ulcers involve full-thickness skin loss with visible subcutaneous fat, but bone, tendon, and muscle are not exposed.
Question 4: When a wound care note describes 'serosanguineous drainage, moderate amount, periwound erythema' for a pressure ulcer, which documentation element is most important for the CDI specialist to verify is also captured by the physician?
- Wound dimensions in centimeters
- Clinical diagnosis of wound infection or cellulitis if clinically present (Correct answer)
- Type of wound dressing applied
- Frequency of wound care treatments
Correct answer: Clinical diagnosis of wound infection or cellulitis if clinically present
Periwound erythema and drainage may indicate infection or cellulitis; the physician must document a clinical diagnosis to support coding of a complication.
Question 5: For DRG reimbursement purposes, which comorbid condition most significantly increases the complexity of a pressure ulcer admission?
- Hypertension
- Osteomyelitis underlying the pressure ulcer (Correct answer)
- Mild anemia
- Vitamin D deficiency
Correct answer: Osteomyelitis underlying the pressure ulcer
Osteomyelitis underlying a pressure ulcer is a major complication/comorbidity (MCC) that can shift the DRG to a significantly higher-paying tier.
Question 6: A patient is admitted with a heel wound that has been present for two months. The physician documents 'heel ulcer, etiology unclear.' What should the CDI specialist do?
- Code it as a pressure ulcer based on the wound's location
- Query the physician to clarify whether it is a pressure ulcer, arterial ulcer, diabetic ulcer, or other type (Correct answer)
- Default to diabetic foot ulcer if the patient has diabetes
- Leave the code unspecified as the physician's documentation is sufficient
Correct answer: Query the physician to clarify whether it is a pressure ulcer, arterial ulcer, diabetic ulcer, or other type
Etiology drives ICD-10-CM code selection for heel wounds, so the CDI specialist must query for clarification to ensure accurate coding and appropriate DRG assignment.
Question 7: Which of the following best describes the role of the CDI specialist when reviewing MDS documentation for pressure ulcers in a skilled nursing facility (SNF) context?
- Ensure MDS Section M accurately reflects current pressure ulcer stage for PDPM case-mix grouping (Correct answer)
- Focus only on ICD-10 codes in the discharge summary
- Override nursing assessments with physician documentation
- Rely solely on wound care consult notes for staging accuracy
Correct answer: Ensure MDS Section M accurately reflects current pressure ulcer stage for PDPM case-mix grouping
In SNF settings, accurate MDS Section M pressure ulcer staging is critical because it directly impacts PDPM reimbursement through nursing case-mix classification.
CCDS Pressure Ulcers and Wound Care Documentation 4
A patient with a Stage 3 pressure ulcer on admission has the wound worsen to Stage 4 during hospitalization.
How should the CDI specialist query this scenario?