N04.B — Nephrotic syndrome with immune complex membranoproliferative glomerulonephritis (IC-MPGN)
Is N04.B billable?
No — N04.B is a non-billable header code. N04.B groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 2 billable codes beneath N04.B.
N04.B at a glance
| Code | N04.B |
|---|---|
| Description | Nephrotic syndrome with immune complex membranoproliferative glomerulonephritis (IC-MPGN) |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from N00-N08
The conditions below can never be reported together with N04.B on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- hypertensive chronic kidney disease (I12.-)
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N04.B, but a patient may have both at the same time. When documentation supports it, N04.B and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Code also — inherited from N00-N08
Two codes may be needed to describe the condition fully. Whether N04.B is sequenced first depends on the reason for the encounter.
- any associated kidney failure (N17-N19).
What codes fall under N04.B? (2)
How long has N04.B existed?
N04.B first appears in FY2026.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the N04 family? (11)
- N04.0Nephrotic syndrome with minor glomerular abnormality
- N04.1Nephrotic syndrome with focal and segmental glomerular lesions
- N04.2Nephrotic syndrome with diffuse membranous glomerulonephritisnot billable
- N04.3Nephrotic syndrome with diffuse mesangial proliferative glomerulonephritis
- N04.4Nephrotic syndrome with diffuse endocapillary proliferative glomerulonephritis
- N04.5Nephrotic syndrome with diffuse mesangiocapillary glomerulonephritis
- N04.6Nephrotic syndrome with dense deposit disease
- N04.7Nephrotic syndrome with diffuse crescentic glomerulonephritis
- N04.8Nephrotic syndrome with other morphologic changes
- N04.9Nephrotic syndrome with unspecified morphologic changes
- N04.ANephrotic syndrome with C3 glomerulonephritis