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Adoption and Trends in Uptake of Updated ICD-10 Codes for Clostridioides difficile-A Retrospective Observational
Abhishek Deshpande1,2, Yiyun Chen3, Eugenia Boye-Codjoe3
1Center for Value-Based Care Research, Cleveland Clinic Community Care, Cleveland Clinic, Cleveland, Ohio, USA.
Background:
In October 2017, the single International Classification of Diseases, Tenth Revision (ICD-10), code for Clostridioides difficile infection (CDI), A04.7, was replaced with 2 codes delineating "recurrent CDI" (rCDI; A04.71) and "nonrecurrent CDI" (nrCDI; A04.72).
Methods:
To evaluate and validate use of the updated codes, this retrospective study included inpatient encounters with a CDI-related ICD-10 code from October 2016 to May 2019 in the PINC AITM Healthcare Database (PHD). Encounters after the October 2017 code update were characterized by clinical, facility, and provider variables and whether coding was concordant or discordant to the 8-week recurrence period. Multivariable regression analysis assessed variables associated with concordant coding.
Results:
Widespread adoption of the updated CDI codes across PHD hospitals occurred in October 2017. After October 2017, 21 446 CDI-related encounters met sample selection criteria (concordance in 67% of rCDI and 25% of nrCDI encounters). Higher proportions of rCDI- vs nrCDI-coded encounters (P < .05) had emergency room admission, admission by a gastroenterologist or infectious disease specialist, and were prescribed fidaxomicin, bezlotoxumab, or fecal microbiota transfer (FMT), with no significant difference by coding concordance status. Encounters coded concordantly were significantly more likely to be for rCDI (odds ratio [OR], 5.67; 95% CI, 5.32-6.03), a nonelective admission (OR, 1.35-1.69), or prescribed fidaxomicin (OR, 1.11; 95% CI, 1.01-1.23) or FMT (OR, 1.29; 95% CI, 1.17-1.42).
Conclusions:
Our study findings suggest no delay in transition to the updated CDI-related codes. Treatment patterns for rCDI vs nrCDI encounters were consistent with Infectious Diseases Society of America guidelines, regardless of concordance status.
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