N05.6 Unspecified nephritic syndrome with dense deposit disease

Billable ICD-10-CM code, FY2026.

Applicable to

• Unspecified nephritic syndrome with C3 glomerulopathy with dense deposit disease
• Unspecified nephritic syndrome with membranoproliferative glomerulonephritis, type 2

Applies from N05 Unspecified nephritic syndrome

Includes

• glomerular disease NOS
• glomerulonephritis NOS
• nephritis NOS
• nephropathy NOS and renal disease NOS with morphological lesion specified in .0-.8

Excludes1 (never code together)

• nephropathy NOS with no stated morphological lesion (N28.9)
• renal disease NOS with no stated morphological lesion (N28.9)
• tubulo-interstitial nephritis NOS (N12)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 583.89 Nephritis and nephropathy, not specified as acute or chronic, with other specified pathological lesion in kidney (approximate)

Code annotations containing back-references to N05.6

Back-references to N05.6

• Type 1 Excludes: N05.A Unspecified nephritic syndrome with C3 glomerulonephritis ("Unspecified nephritic syndrome (with C3 glomerulopathy) with dense deposit disease (N05.6)")

Back-references to N05

• Type 1 Excludes: N00 Acute nephritic syndrome ("nephritic syndrome NOS (N05.-)")
• Type 1 Excludes: N01 Rapidly progressive nephritic syndrome ("nephritic syndrome NOS (N05.-)")
• Type 1 Excludes: N03 Chronic nephritic syndrome ("nephritic syndrome NOS (N05.-)")
• Type 1 Excludes: N28.9 Disorder of kidney and ureter, unspecified ("unspecified nephritic syndrome (N05.-)")

Diagnosis Index entries for N05.6

• Disease, diseased › dense deposit
• Glomerulonephritis › with › C3 › glomerulopathy › with dense deposit disease
• Glomerulonephritis › dense deposit
• Glomerulonephritis › membranoproliferative (diffuse)(type 1 or 3) › dense deposit (type 2) NEC
• Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) › with › C3 › glomerulopathy › with dense deposit disease
• Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) › with › dense deposit disease
• Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) › membranoproliferative (diffuse) (type 1 or 3) › type 2

Nearby codes

• N05.1 Unspecified nephritic syndrome with focal and segmental glomerular lesions
• N05.2 Unspecified nephritic syndrome with diffuse membranous glomerulonephritis
• N05.3 Unspecified nephritic syndrome with diffuse mesangial proliferative glomerulonephritis
• N05.4 Unspecified nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis
• N05.5 Unspecified nephritic syndrome with diffuse mesangiocapillary glomerulonephritis
• N05.6 Unspecified nephritic syndrome with dense deposit disease (this code)
• N05.7 Unspecified nephritic syndrome with diffuse crescentic glomerulonephritis
• N05.8 Unspecified nephritic syndrome with other morphologic changes
• N05.9 Unspecified nephritic syndrome with unspecified morphologic changes
• N05.A Unspecified nephritic syndrome with C3 glomerulonephritis