N00
Acute nephritic syndrome
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
N00code
N00-N99chapter
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
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 12
N00.0 Acute nephritic syndrome with minor glomerular abnormality N00.1 Acute neph syndrome w focal and segmental glomerular lesions N00.2 Acute nephritic syndrome w diffuse membranous glomrlneph N00.3 Acute neph syndrome w diffuse mesangial prolif glomrlneph N00.4 Acute neph syndrome w diffuse endocaplry prolif glomrlneph N00.5 Acute nephritic syndrome w diffuse mesangiocap glomrlneph N00.6 Acute nephritic syndrome with dense deposit disease N00.7 Acute nephritic syndrome w diffuse crescentic glomrlneph N00.8 Acute nephritic syndrome with other morphologic changes N00.9 Acute nephritic syndrome with unsp morphologic changes N00.A Acute nephritic syndrome with C3 glomerulonephritis N00.B Acute neph synd with immune complex membr prolif glomrlneph
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.