N03.A
N03.A: Chronic nephritic syndrome with C3 glomerulonephritis
Billable / specific codeICD-10-CM
N03.A is a billable, specific ICD-10-CM code for chronic nephritic syndrome with c3 glomerulonephritis. It is valid for submission on a claim.
Check N03.A with the rest of the claim: free scrubberExcludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- Chronic nephritic syndrome (with C3 glomerulopathy) with dense deposit disease (N03.6)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Chronic nephritic syndrome with C3 glomerulopathy
Other codes that can never be billed with N03.A
Their own Excludes1 notes name this code, so the conflict is not listed above.
- N03.5Chronic nephritic syndrome with diffuse mesangiocapillary glomerulonephritis
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
N03.A is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56380Billing and Coding: Rituximab
Alphabetic index entries that lead here
- Nephritis, nephritic›chronic›with›C3›glomerulonephritis
- Nephritis, nephritic›chronic›with›C3›glomerulopathy
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under N03
- N03.0Chronic nephritic syndrome with minor glomerular abnormality
- N03.1Chronic nephritic syndrome with focal and segmental glomerular lesions
- N03.2Chronic nephritic syndrome with diffuse membranous glomerulonephritis
- N03.3Chronic nephritic syndrome with diffuse mesangial proliferative glomerulonephritis
- N03.4Chronic nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis
- N03.5Chronic nephritic syndrome with diffuse mesangiocapillary glomerulonephritis
- N03.6Chronic nephritic syndrome with dense deposit disease
- N03.7Chronic nephritic syndrome with diffuse crescentic glomerulonephritis
- N03.8Chronic nephritic syndrome with other morphologic changes
- N03.9Chronic nephritic syndrome with unspecified morphologic changes