ICD-10-CM > N00-N99 > N00-N08 > N00 > N00.5 N00.5 Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritis Billable/Specific Copy Code Copy Description Type 1 Excludes Acute nephritic syndrome with C3 glomerulonephritis (N00.A)Acute nephritic syndrome with C3 glomerulopathy (N00.A)