ICD-10-CM 2027
ICD-10 code for Multicystic kidney
From the official ICD-10-CM alphabetic index entry “Multicystic kidney (development)”. Page updated September 29, 2026.
About coding Multicystic kidney
The ICD-10-CM code for Multicystic kidney is Q61.4 (Renal dysplasia).
Within Q61 (cystic kidney disease), Q61.4 is specifically for renal dysplasia. Related codes cover congenital renal cyst (Q61.0), polycystic kidney, infantile type (Q61.1), polycystic kidney, adult type (Q61.2), polycystic kidney, unspecified (Q61.3), medullary cystic kidney (Q61.5), other cystic kidney diseases (Q61.8) and unspecified (Q61.9).
Don't report Q61.4 together with the conditions in its Excludes1 note: polycystic kidney disease (Q61.11-Q61.3).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for Q61.4)
Common questions about Multicystic kidney ICD-10 codes
What is the ICD-10 code for Multicystic kidney?
- Q61.4 — Renal dysplasia.
Is Q61.4 billable?
- Yes. Q61.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q61.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q61.4 as a principal diagnosis.
Is Q61.4 a CC or MCC?
- Q61.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.