Table 3.
Distribution of documented diagnostic codes for IgAN in 2022 by healthcare setting and 4-digit ICD-10-GM code among incident primary IgAN patients in 2022
| Healthcare setting/4-digit ICD-10-GM code | Lower bound | Upper Bound | |
|---|---|---|---|
| At least one inpatient primary diagnosis | ≤57.1%a | 39.1% | |
| At least one inpatient secondary diagnosis | ≤57.1%a | 34.8% | |
| At least two outpatient diagnoses | ≤57.1%a | 47.8% | |
| N00.3 | Acute nephritic syndrome: diffuse mesangial proliferative glomerulonephritis | 0.0% | 0.0% |
| N02.3 | Recurrent and persistent haematuria: diffuse mesangial proliferative glomerulonephritis | 100.0% | 30.4% |
| N02.5 | Recurrent and persistent haematuria: diffuse mesangiocapillary glomerulonephritis | - | ≤17.4%a |
| N02.7 | Recurrent and persistent haematuria: diffuse crescentic glomerulonephritis | - | 0.0% |
| N02.8 | Recurrent and persistent haematuria: other | - | 60.9% |
| N02.9 | Recurrent and persistent haematuria: unspecified | - | ≤17.4%a |
| N06.3 | Isolated proteinuria with indication of morphologic changes: diffuse mesangial proliferative glomerulonephritis | 0.0% | 0.0% |
| N06.8 | Isolated proteinuria with indication of morphologic changes: Other morphological changes | - | ≤17.4%a |
aDue to data protection regulations patient counts ≤ 4 and corresponding percentages cannot be reported