N06.3 Isolated proteinuria with diffuse mesangial proliferative glomerulonephritis

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from N06 Isolated proteinuria with specified morphological lesion

Excludes1 (never code together)

• Proteinuria not associated with specific morphologic lesions (R80.0)

MS-DRG index

Defines the logic of DRG(s) 698-700 in MDC 11.

Approximate ICD-9-CM (GEMs)

• 583.2 Nephritis and nephropathy, not specified as acute or chronic, with lesion of membranoproliferative glomerulonephritis (approximate)

Code annotations containing back-references to N06.3

Back-references to N06

• Type 1 Excludes: R80.0 Isolated proteinuria ("isolated proteinuria with specific morphological lesion (N06.-)")

Diagnosis Index entries for N06.3

• Proteinuria › isolated › with glomerular lesion › mesangial proliferative (diffuse)

Nearby codes

• N06.2 Isolated proteinuria with diffuse membranous glomerulonephritis
• 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
• N06.3 Isolated proteinuria with diffuse mesangial proliferative glomerulonephritis (this code)
• 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