N01.6 — Rapidly progressive nephritic syndrome with dense deposit disease
N01.6 is a billable, specific ICD-10-CM code for rapidly progressive nephritic syndrome with dense deposit disease. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Rapidly progressive nephritic syndrome with C3 glomerulopathy with dense deposit disease
- Rapidly progressive nephritic syndrome with membranoproliferative glomerulonephritis, type 2
Other codes that can never be billed with N01.6
These codes carry an Excludes1 note pointing at N01.6. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N01.6 alone.
- N01.ARapidly progressive nephritic syndrome with C3 glomerulonephritis
Risk adjustment
N01.6 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
N01.6 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54548Billing and Coding: Eculizumab, and Biosimilars: EPYSQLI®-eculizumab-aagh, and BKEMV™-eculizumab-aeeb
- A55336Billing and Coding: Retroperitoneal Ultrasound
- A56380Billing and Coding: Rituximab
- A57189Billing and Coding: Serum Magnesium
How N01.6 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N01.6.
- Nephritis, nephritic›rapidly progressive›with›dense deposit disease
- Nephritis, nephritic›rapidly progressive›with›C3›glomerulopathy›with dense deposit disease
Related codes at this level
Codes that share N01. If N01.6 is not quite right, the correct code is usually one of these.
- N01.0Rapidly progressive nephritic syndrome with minor glomerular abnormality
- N01.1Rapidly progressive nephritic syndrome with focal and segmental glomerular lesions
- N01.2Rapidly progressive nephritic syndrome with diffuse membranous glomerulonephritis
- N01.3Rapidly progressive nephritic syndrome with diffuse mesangial proliferative glomerulonephritis
- N01.4Rapidly progressive nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis
- N01.5Rapidly progressive nephritic syndrome with diffuse mesangiocapillary glomerulonephritis
- N01.7Rapidly progressive nephritic syndrome with diffuse crescentic glomerulonephritis
- N01.8Rapidly progressive nephritic syndrome with other morphologic changes
- N01.9Rapidly progressive nephritic syndrome with unspecified morphologic changes
- N01.ARapidly progressive nephritic syndrome with C3 glomerulonephritis
Questions about N01.6
- Is N01.6 a billable ICD-10-CM code?
- Yes. N01.6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N01.6 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Glomerular diseases (N00-N08).