Validity of ICD-10-based algorithms to identify patients with influenza in inpatient and outpatient settings.
Kirk BenackAbner NyandegeEdward NonnenmacherSaira JanSoko SetoguchiTobias GerhardBrian L StromDaniel B HortonPublished in: Pharmacoepidemiology and drug safety (2024)
In a large US healthcare system, inpatient ICD-10-CM codes for influenza, particularly primary inpatient diagnoses, had high predictive value for test-positive influenza. Outpatient ICD-10-CM codes were moderately predictive of test-positive influenza.