N00
N00 — Acute nephritic syndrome
Non-billable headerICD-10-CM
N00 is a non-billable header ICD-10-CM code for acute nephritic syndrome. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with N00
These codes carry an Excludes1 note pointing at N00. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N00 alone.
Risk adjustment
N00 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.
Code to one of these instead N00
12 child codes. Green means billable.
- N00.0Acute nephritic syndrome with minor glomerular abnormality
- N00.1Acute nephritic syndrome with focal and segmental glomerular lesions
- N00.2Acute nephritic syndrome with diffuse membranous glomerulonephritis
- N00.3Acute nephritic syndrome with diffuse mesangial proliferative glomerulonephritis
- N00.4Acute nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis
- N00.5Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritis
- N00.6Acute nephritic syndrome with dense deposit disease
- N00.7Acute nephritic syndrome with diffuse crescentic glomerulonephritis
- N00.8Acute nephritic syndrome with other morphologic changes
- N00.9Acute nephritic syndrome with unspecified morphologic changes
- N00.AAcute nephritic syndrome with C3 glomerulonephritis
- N00.BAcute nephritic syndrome with immune complex membranoproliferative glomerulonephritis
Questions about N00
- Is N00 a billable ICD-10-CM code?
- No. N00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does N00 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Glomerular diseases (N00-N08).
- What cannot be coded together with N00?
- N00 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.