ICD-10-CM 2027
ICD-10 code for renal complication
From the official ICD-10-CM alphabetic index entry “Complication (s) (from) (of) › renal”. Page updated September 29, 2026.
About coding renal complication
The ICD-10-CM code for renal complication is N28.9 (Disorder of kidney and ureter, unspecified).
Within N28, choose N28.9 (Disorder of kidney and ureter, unspecified) only when documentation doesn't support a more specific option: ischemia and infarction of kidney (N28.0), cyst of kidney, acquired (N28.1) and other specified disorders of kidney and ureter (N28.8).
Don't report N28.9 together with the conditions in its Excludes1 note: chronic renal insufficiency (N18.9) and unspecified nephritic syndrome (N05.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific renal complication codes (official index)
- allograft
- dialysis
Don't confuse with (Excludes1 for N28.9)
Common questions about renal complication ICD-10 codes
What is the ICD-10 code for renal complication?
- N28.9 — Disorder of kidney and ureter, unspecified.
Is N28.9 billable?
- Yes. N28.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N28.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N28.9 as a principal diagnosis.
Is N28.9 a CC or MCC?
- No. N28.9 is neither a CC nor an MCC under MS-DRG v44.0.