ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 14  /  N25-N29

Other disorders of kidney and ureter (N25-N29)

Excludes2: disorders of kidney and ureter with urolithiasis (N20-N23)
N25 Disorders resulting from impaired renal tubular function
N25.0 Renal osteodystrophy
Azotemic osteodystrophy
Phosphate-losing tubular disorders
Renal rickets
Renal short stature
Excludes2 metabolic disorders classifiable to E70-E88
N25.1 Nephrogenic diabetes insipidus
Excludes1 diabetes insipidus NOS (E23.2)
N25.8 Other disorders resulting from impaired renal tubular function
N25.81 Secondary hyperparathyroidism of renal origin
Excludes1 secondary hyperparathyroidism, non-renal (E21.1)
Excludes2 metabolic disorders classifiable to E70-E88
N25.89 Other disorders resulting from impaired renal tubular function
Hypokalemic nephropathy
Lightwood-Albright syndrome
Renal tubular acidosis NOS
N25.9 Disorder resulting from impaired renal tubular function, unspecified
N26 Unspecified contracted kidney
Excludes1 contracted kidney due to hypertension (I12.-)
diffuse sclerosing glomerulonephritis (N05.8.-)
hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (I12.-)
small kidney of unknown cause (N27.-)
N26.1 Atrophy of kidney (terminal)
N26.2 Page kidney
N26.9 Renal sclerosis, unspecified
N27 Small kidney of unknown cause
Includes oligonephronia
N27.0 Small kidney, unilateral
N27.1 Small kidney, bilateral
N27.9 Small kidney, unspecified
N28 Other disorders of kidney and ureter, not elsewhere classified
N28.0 Ischemia and infarction of kidney
Renal artery embolism
Renal artery obstruction
Renal artery occlusion
Renal artery thrombosis
Renal infarct
Excludes1 atherosclerosis of renal artery (extrarenal part) (I70.1)
congenital stenosis of renal artery (Q27.1)
Goldblatt's kidney (I70.1)
N28.1 Cyst of kidney, acquired
Cyst (multiple) (solitary) of kidney (acquired)
Excludes1 cystic kidney disease (congenital) (Q61.-)
N28.8 Other specified disorders of kidney and ureter
Excludes1 hydroureter (N13.4)
ureteric stricture with hydronephrosis (N13.1)
ureteric stricture without hydronephrosis (N13.5)
N28.81 Hypertrophy of kidney
N28.82 Megaloureter
N28.83 Nephroptosis
N28.84 Pyelitis cystica
N28.85 Pyeloureteritis cystica
N28.86 Ureteritis cystica
N28.89 Other specified disorders of kidney and ureter
N28.9 Disorder of kidney and ureter, unspecified
Nephropathy NOS
Renal disease (acute) NOS
Renal insufficiency (acute)
Excludes1 chronic renal insufficiency (N18.9)
unspecified nephritic syndrome (N05.-)
N29 Other disorders of kidney and ureter in diseases classified elsewhere
CodeFirst underlying disease, such as:
amyloidosis (E85.-)
nephrocalcinosis (E83.59)
schistosomiasis (B65.0-B65.9)
Excludes1 disorders of kidney and ureter in:
cystinosis (E72.0)
gonorrhea (A54.21)
syphilis (A52.75)
tuberculosis (A18.11)
nonPrimary Yes