Q61.11 Cystic dilatation of collecting ducts

The ICD-10-CM code for Cystic dilatation of collecting ducts is Q61.11 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

17: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)

Section

Q60-Q64: Congenital malformations of the urinary system (Q60-Q64)

Category Q61

14 codes (11 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to Q61.11:

• Cystic › kidney (congenital) › infantile type NEC › collecting duct dilatation
• Disease, diseased › polycystic › kidney or renal › childhood type NEC › collecting duct dilatation
• Disease, diseased › renal (functional) (pelvis) › polycystic (congenital) › childhood type NEC › collecting duct dilatation
• Degeneration, degenerative › kidney › polycystic › infantile type (autosomal recessive) NEC › collecting duct dilatation
• Disease, diseased › kidney (functional) (pelvis) › polycystic › childhood type NEC › collecting duct dilatation
• Cyst (colloid) (mucous) (simple) (retention) › kidney › more than one (multiple) › specified as polycystic › infantile type (autosomal recessive) NEC › collecting duct dilation
• Cyst (colloid) (mucous) (simple) (retention) › congenital NEC › kidney › more than one (multiple) › specified as polycystic › infantile type NEC › collecting duct dilation

U.S. Hospital Utilization

Q61.11 appeared in too few sampled U.S. inpatient stays in 2023 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

POA indicator for congenital conditions/anomalies and Q00-Q99 exception

Congenital conditions and anomalies Assign “Y” for congenital conditions and anomalies except for categories Q00- Q99, Congenital anomalies, which are on the exempt list. Congenital conditions are always considered present on admission.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)