N00.B1

Acute nephritic syndrome with idiopathic immune membranoproliferative glomerulonephritis (IC-MPGN)

Billable FY2026 2025-10-01 → 2026-09-30 FY2026–2027 only

Exclusions 11 never code together

N00code

Excludes1

Excludes1

Excludes2

certain conditions originating in the perinatal period (P04-P96)P04-P96
certain infectious and parasitic diseases (A00-B99)A00-B99
complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
neoplasms (C00-D49)C00-D49
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 4

N00code

Includes

Code also

Index entries leading here 1

Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) N05.9
- acute N00.9
  - with
    - idiopathic immune membranoproliferative glomerulonephritis (IC-MPGN) N00.B1

Alongside this code 1 same parent — N00.B

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Present FY2026–FY2027.