ICD-10 Code for Nephropathy
The ICD-10-CM code for nephropathy is N28.9 — Disorder of kidney and ureter, unspecified. This is the code the Alphabetic Index gives for nephropathy with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
BillableUnspecified
N28.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which nephropathy code should you use?
The Alphabetic Index lists 46 codes under Nephropathy. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| amyloid, hereditary | E85.0 | Non-neuropathic heredofamilial amyloidosis | |
| analgesic | N14.0 | Analgesic nephropathy | |
| Balkan | N15.0 | Balkan nephropathy | |
| contrast-induced | N14.11 | Contrast-induced nephropathy | |
| contrast medium, radiography | N14.11 | Contrast-induced nephropathy | |
| drug-induced | N14.2 | Nephropathy induced by unspecified drug, medicament or biological substance | |
| focal and segmental hyalinosis or sclerosis | N02.1 | Recurrent and persistent hematuria with focal and segmental glomerular lesions | |
| heavy metal-induced | N14.3 | Nephropathy induced by heavy metals | |
| hereditary NEC | N07.9 | Hereditary nephropathy, not elsewhere classified with unspecified morphologic lesions | |
| hypercalcemic | N25.89 | Other disorders resulting from impaired renal tubular function | |
| hypokalemic | N25.89 | Other disorders resulting from impaired renal tubular function | |
| IgA | N02.B | Recurrent and persistent immunoglobulin A nephropathy | not billable |
| lead | N14.3 | Nephropathy induced by heavy metals | |
| membranoproliferative | N02.5 | Recurrent and persistent hematuria with diffuse mesangiocapillary glomerulonephritis | |
| membranous | N06.20 | Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified | |
| mesangiocapillary | N02.5 | Recurrent and persistent hematuria with diffuse mesangiocapillary glomerulonephritis | |
| obstructive | N13.8 | Other obstructive and reflux uropathy | |
| phenacetin | N17.2 | Acute kidney failure with medullary necrosis | |
| phosphate-losing | N25.0 | Renal osteodystrophy | |
| potassium depletion | N25.89 | Other disorders resulting from impaired renal tubular function | |
| pregnancy-related | O26.83 | Pregnancy related renal disease | not billable |
| proliferative NEC | N05.8 | Unspecified nephritic syndrome with other morphologic changes | |
| protein-losing | N25.89 | Other disorders resulting from impaired renal tubular function | |
| saturnine | N14.3 | Nephropathy induced by heavy metals | |
| sickle-cell | N08 | Glomerular disorders in diseases classified elsewhere | |
| toxic NEC | N14.4 | Toxic nephropathy, not elsewhere classified | |
| vasomotor | N17.0 | Acute kidney failure with tubular necrosis | |
| water-losing | N25.89 | Other disorders resulting from impaired renal tubular function |
Nephropathy analgesic
| with medullary necrosis, acute | N17.2 | Acute kidney failure with medullary necrosis |
Nephropathy drug-induced
Nephropathy IgA
| proliferative NEC | N02.B9 | Other recurrent and persistent immunoglobulin A nephropathy | |
| specified pathology NEC | N02.B9 | Other recurrent and persistent immunoglobulin A nephropathy | |
| with › focal and segmental hyalinosis or sclerosis | N02.B2 | Recurrent and persistent immunoglobulin A nephropathy with focal and segmental glomerular lesion | |
| with › glomerular lesion | N02.B1 | Recurrent and persistent immunoglobulin A nephropathy with glomerular lesion | |
| with › glomerular lesion › focal and segmental | N02.B2 | Recurrent and persistent immunoglobulin A nephropathy with focal and segmental glomerular lesion | |
| with › glomerulonephritis › membranoproliferative | N02.B3 | Recurrent and persistent immunoglobulin A nephropathy with diffuse membranoproliferative glomerulonephritis | |
| with › glomerulonephritis › membranous | N02.B4 | Recurrent and persistent immunoglobulin A nephropathy with diffuse membranous glomerulonephritis | |
| with › glomerulonephritis › mesangial proliferative | N02.B5 | Recurrent and persistent immunoglobulin A nephropathy with diffuse mesangial proliferative glomerulonephritis | |
| with › glomerulonephritis › mesangiocapillary | N02.B6 | Recurrent and persistent immunoglobulin A nephropathy with diffuse mesangiocapillary glomerulonephritis |
Nephropathy membranous
| idiopathic, with nephrotic syndrome | N04.21 | Primary membranous nephropathy with nephrotic syndrome | |
| primary | N06.21 | Primary membranous nephropathy with isolated proteinuria | |
| secondary | N06.22 | Secondary membranous nephropathy with isolated proteinuria | |
| with › nephrotic syndrome | N04.20 | Nephrotic syndrome with diffuse membranous glomerulonephritis, unspecified | |
| primary › with nephrotic syndrome | N04.21 | Primary membranous nephropathy with nephrotic syndrome | |
| secondary › with nephrotic syndrome | N04.22 | Secondary membranous nephropathy with nephrotic syndrome | |
| with › nephrotic syndrome › primary | N04.21 | Primary membranous nephropathy with nephrotic syndrome | |
| with › nephrotic syndrome › secondary | N04.22 | Secondary membranous nephropathy with nephrotic syndrome |
Nephropathy mesangial
| proliferative | N02.3 | Recurrent and persistent hematuria with diffuse mesangial proliferative glomerulonephritis |
Nephropathy hereditary NEC
| with › APOL1-mediated kidney disease | N07.B | Hereditary nephropathy, not elsewhere classified with APOL1-mediated kidney disease [AMKD] | |
| with › dense deposit disease | N07.6 | Hereditary nephropathy, not elsewhere classified with dense deposit disease | |
| with › focal and segmental glomerular lesions | N07.1 | Hereditary nephropathy, not elsewhere classified with focal and segmental glomerular lesions | |
| with › minor glomerular abnormality | N07.0 | Hereditary nephropathy, not elsewhere classified with minor glomerular abnormality | |
| with › specified morphological changes NEC | N07.8 | Hereditary nephropathy, not elsewhere classified with other morphologic lesions | |
| with › C3 › glomerulonephritis | N07.A | Hereditary nephropathy, not elsewhere classified with C3 glomerulonephritis | |
| with › C3 › glomerulopathy | N07.A | Hereditary nephropathy, not elsewhere classified with C3 glomerulonephritis | |
| with › diffuse › crescentic glomerulonephritis | N07.7 | Hereditary nephropathy, not elsewhere classified with diffuse crescentic glomerulonephritis | |
| with › diffuse › endocapillary proliferative glomerulonephritis | N07.4 | Hereditary nephropathy, not elsewhere classified with diffuse endocapillary proliferative glomerulonephritis | |
| with › diffuse › membranous glomerulonephritis | N07.2 | Hereditary nephropathy, not elsewhere classified with diffuse membranous glomerulonephritis | |
| with › diffuse › mesangial proliferative glomerulonephritis | N07.3 | Hereditary nephropathy, not elsewhere classified with diffuse mesangial proliferative glomerulonephritis | |
| with › diffuse › mesangiocapillary glomerulonephritis | N07.5 | Hereditary nephropathy, not elsewhere classified with diffuse mesangiocapillary glomerulonephritis | |
| with › C3 › glomerulopathy › with dense deposit disease | N07.6 | Hereditary nephropathy, not elsewhere classified with dense deposit disease |
Nephropathy toxic NEC
| due to › drugs | N14.2 | Nephropathy induced by unspecified drug, medicament or biological substance | |
| due to › heavy metals | N14.3 | Nephropathy induced by heavy metals | |
| due to › drugs › analgesic | N14.0 | Analgesic nephropathy | |
| due to › drugs › specified NEC | N14.19 | Nephropathy induced by other drugs, medicaments and biological substances |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources