Q61.11 vs Q61.4
Q61.11 (Cystic dilatation of collecting ducts) compared with Q61.4 (Renal dysplasia), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. Q61.4 carries an Excludes1 note covering Q61.11: “polycystic kidney disease (Q61.11-Q61.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| Q61.11Cystic dilatation of collecting ducts | Q61.4Renal dysplasia | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Cystic dilatation of collecting ducts is a billable ICD-10-CM diagnosis code (Q61.11). | Renal dysplasia is a billable ICD-10-CM diagnosis code (Q61.4). |
| Includes | — | Multicystic dysplastic kidney Multicystic kidney (development) Multicystic kidney disease Multicystic renal dysplasia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources