TABLE 3.
Most common diagnoses consistent with bacterial infection among patients presenting with COVID-19
| ICD 10 code | Description | Frequencya [no. (%)] |
|---|---|---|
| Bacterial coinfections present on admission | ||
| N39.0 | Urinary tract infection, site not specified | 4,679 (7.2) |
| J15.9 | Unspecified bacterial pneumonia | 2,756 (4.2) |
| B96.20 | Unspecified Escherichia coli as the cause of diseases classified elsewhere | 1,354 (2.1) |
| N30.00 | Acute cystitis without hematuria | 451 (0.7) |
| J15.6 | Pneumonia due to other Gram-negative bacteria | 432 (0.7) |
| B96.1 | Klebsiella pneumoniae as the cause of diseases classified elsewhere | 428 (0.7) |
| R78.81 | Bacteremia | 354 (0.5) |
| B96.89 | Other bacterial agents as the cause of diseases classified elsewhere | 352 (0.5) |
| B95.2 | Enterococcus as the cause of diseases classified elsewhere | 342 (0.5) |
| B96.4 | Proteus (mirabilis) (morganii) causing diseases classified elsewhere | 310 (0.5) |
| Bacterial secondary infection not present on admission | ||
| N39.0 | Urinary tract infection, site not specified | 590 (0.9) |
| J95.851 | Ventilator associated pneumonia | 452 (0.7) |
| J15.9 | Unspecified bacterial pneumonia | 354 (0.5) |
| J15.212 | Pneumonia due to methicillin-resistant Staphylococcus aureus | 160 0.2) |
| B96.20 | Unspecified Escherichia coli as the cause of diseases classified elsewhere | 156 0.2) |
| B95.2 | Enterococcus as the cause of diseases classified elsewhere | 140 (0.2) |
| J15.211 | Pneumonia due to methicillin-susceptible Staphylococcus aureus | 140 (0.2) |
| J15.6 | Pneumonia due to other Gram-negative bacteria | 133 (0.2) |
| J15.1 | Pneumonia due to Pseudomonas | 125 (0.2) |
| R78.81 | Bacteremia | 125 (0.2) |
a
Reported proportions represent the number of inpatients with a given diagnosis out of the total sample of inpatients with COVID-19 present on admission. For perspective, the total number of patients in our sample with bacterial coinfection was 12,040; 38.9% of inpatients presenting with bacterial coinfection received a diagnosis of N39.0 for urinary tract infection, site not specified. A total of 2,506 patients in our sample developed bacterial secondary infection; 23.5% of inpatients who developed bacterial secondary infection were diagnosed with N39.0 for urinary tract infection, site not specified.