Send to

Choose Destination
Wound Repair Regen. 2019 Jul;27(4):431-434. doi: 10.1111/wrr.12700. Epub 2019 Feb 7.

Validation of inpatient international classification of disease ninth revision codes as predictors of venous leg ulcers.

Author information

Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida.
Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.


Venous leg ulcers (VLU) comprise about 70% of lower leg wounds and cost more than 14 billion USD per year. Patients with VLU are often admitted to the hospital; however, epidemiological study of this important patient subset is challenged by lack of validated database search protocol. Five International Classification of Diseases (ICD) 9 codes were identified for their relationship with VLUs (454.0, 454.2, 459.11, 707.9, and 707.10). The ICD9 code was considered to successfully predict a VLU if the wound was located in the gaiter area and had either relevant clinical findings, a positive venous study, and/or a diagnosis of VLU written in the physician note. The code 454.0, when combined with length of admission and subjects' age, yielded high specificity (100%) and positive predictive value (100%), sacrificing sensitivity (34.4%). This formula represents a viable search criterion to identify VLU patients in large-scale datasets to examine patients' outcomes, costs, and comorbidities.


Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center