N28.0 Ischemia and infarction of kidney

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Renal artery embolism
• Renal artery obstruction
• Renal artery occlusion
• Renal artery thrombosis
• Renal infarct

Excludes1 (never code together)

• atherosclerosis of renal artery (extrarenal part) (I70.1)
• congenital stenosis of renal artery (Q27.1)
• Goldblatt's kidney (I70.1)

Risk adjustment (HCC)

• CMS-HCC V22: HCC 107 — Vascular Disease with Complications
• ESRD V24: HCC 107

MS-DRG index

Defines the logic of DRG(s) 698-700 in MDC 11.

Approximate ICD-9-CM (GEMs)

• 593.81 Vascular disorders of kidney (approximate)

Code annotations containing back-references to N28.0

Back-references to N28.0

• Type 2 Excludes: I74 Arterial embolism and thrombosis ("renal embolism and thrombosis (N28.0)")

Diagnosis Index entries for N28.0

• Crisis › renal
• Embolism (multiple) (paradoxical) › artery › renal
• Embolism (multiple) (paradoxical) › kidney (artery)
• Embolism (multiple) (paradoxical) › renal (artery)
• Infarct, infarction › brewer's (kidney)
• Infarct, infarction › kidney
• Infarct, infarction › renal (embolic) (thrombotic)
• Ischemia, ischemic › kidney
• Ischemia, ischemic › renal
• Necrosis, necrotic (ischemic) › kidney (bilateral)
• Obstruction, obstructed, obstructive › artery › renal
• Occlusion, occluded › artery › renal
• Occlusion, occluded › renal artery
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › artery, arteries (postinfectional) › renal
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › kidney (artery)
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › renal (artery)
• Torsion › kidney (pedicle) (leading to infarction)

Nearby codes

• N28 Other disorders of kidney and ureter, not elsewhere classified
• N28.0 Ischemia and infarction of kidney (this code)
• N28.1 Cyst of kidney, acquired
• N28.8 Other specified disorders of kidney and ureter
• N28.81 Hypertrophy of kidney
• N28.82 Megaloureter
• N28.83 Nephroptosis