N00.A — Acute nephritic syndrome with C3 glomerulonephritis
N00.A is a billable, specific ICD-10-CM code for acute nephritic syndrome with c3 glomerulonephritis. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- Acute nephritic syndrome (with C3 glomerulopathy) with dense deposit disease (N00.6)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Acute nephritic syndrome with C3 glomerulopathy, NOS
Other codes that can never be billed with N00.A
These codes carry an Excludes1 note pointing at N00.A. 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.A alone.
- N00.5Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritis
Risk adjustment
N00.A 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.
How N00.A 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 N00.A.
- Nephritis, nephritic›acute›with›C3›glomerulonephritis
- Nephritis, nephritic›acute›with›C3›glomerulopathy
Related codes at this level
Codes that share N00. If N00.A is not quite right, the correct code is usually one of these.
- 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.BAcute nephritic syndrome with immune complex membranoproliferative glomerulonephritis
Questions about N00.A
- Is N00.A a billable ICD-10-CM code?
- Yes. N00.A is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N00.A 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.A?
- N00.A carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.