ICD-10-CM 2027
ICD-10 code for idiopathic proteinuria
From the official ICD-10-CM alphabetic index entry “Proteinuria › idiopathic”. Page updated September 29, 2026.
About coding idiopathic proteinuria
The ICD-10-CM code for idiopathic proteinuria is R80.0 (Isolated proteinuria).
Within R80 (proteinuria), R80.0 is specifically for isolated proteinuria. Related codes cover persistent proteinuria, unspecified (R80.1), orthostatic proteinuria, unspecified (R80.2), Bence Jones proteinuria (R80.3), other proteinuria (R80.8) and unspecified (R80.9).
Don't report R80.0 together with the conditions in its Excludes1 note: isolated proteinuria with specific morphological lesion (N06.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for R80.0)
- isolated proteinuria with specific morphological lesion (N06.-)
Common questions about idiopathic proteinuria ICD-10 codes
What is the ICD-10 code for idiopathic proteinuria?
- R80.0 — Isolated proteinuria.
Is R80.0 billable?
- Yes. R80.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R80.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R80.0 as a principal diagnosis.
Is R80.0 a CC or MCC?
- No. R80.0 is neither a CC nor an MCC under MS-DRG v44.0.