N06: Isolated proteinuria with specified morphological lesion

Codes under N06 (Isolated proteinuria with specified morphological lesion). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
N06.0	Isolated proteinuria with minor glomerular abnormality	✓
N06.1	Isolated proteinuria with focal and segmental glomerular lesions	✓
N06.2	Isolated proteinuria with diffuse membranous glomerulonephritis	—
N06.3	Isolated proteinuria with diffuse mesangial proliferative glomerulonephritis	✓
N06.4	Isolated proteinuria with diffuse endocapillary proliferative glomerulonephritis	✓
N06.5	Isolated proteinuria with diffuse mesangiocapillary glomerulonephritis	✓
N06.6	Isolated proteinuria with dense deposit disease	✓
N06.7	Isolated proteinuria with diffuse crescentic glomerulonephritis	✓
N06.8	Isolated proteinuria with other morphologic lesion	✓
N06.9	Isolated proteinuria with unspecified morphologic lesion	✓
N06.20	Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified	✓
N06.21	Primary membranous nephropathy with isolated proteinuria	✓
N06.22	Secondary membranous nephropathy with isolated proteinuria	✓
N06.29	Other isolated proteinuria with diffuse membranous glomerulonephritis	✓
N06.A	Isolated proteinuria with C3 glomerulonephritis	✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

Code the diagnosis right