ICD-10-CM > N00-N99 > N00-N08 > N06 > N06.A N06.A Isolated proteinuria with C3 glomerulonephritis Billable/Specific Copy Code Copy Description Applicable To Isolated proteinuria with C3 glomerulopathy Type 1 Excludes Isolated proteinuria (with C3 glomerulopathy) with dense deposit disease (N06.6)