2026 ICD-10-CM Diagnosis Code Q61.8Other cystic kidney diseases

ICD-10-CM Codes›Q00-Q99›Q60-Q64›Q61

ICD-10-CM Q61.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q61.8 is a billable ICD-10-CM diagnosis code for other cystic kidney diseases. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 698 through 700. The code is exempt from POA reporting. Coders also document this condition as cortical cystic disease. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Genitourinary congenital anomalies.

Code Identity

ICD-10-CM Code
Q61.8
Billable Status
Yes — Valid for Submission
Code Describes
Other cystic kidney diseases
Short Description
Other cystic kidney diseases
Same as the full description in the CMS dataset.
Parent Code
Q61
Cystic kidney disease

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ60-Q64Congenital malformations of the urinary system
CategoryQ61Cystic kidney disease
This CodeQ61.8Other cystic kidney diseases

Present on Admission (POA)Billing

Q61.8 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cortical cystic disease
  • Cyst of corticomedullary junction of kidney
  • Fibrocystic kidney disease
  • Microcyst of cortex of kidney
  • Microcystic renal disease

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Fibrocystic kidney
  • Fibrocystic renal degeneration or disease

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disease, diseased
      • kidney (functional) (pelvis)
        • fibrocystic (congenital)
    • Disease, diseased
      • renal (functional) (pelvis)
        • fibrocystic (congenital)
    • Fibrocystic
      • disease
        • kidney (congenital)
    • Fibrocystic
      • kidney (congenital)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MAL003
Genitourinary congenital anomalies
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Microcystic Renal Disease

    a congenital renal disorder characterized by the presence of small cysts in the renal cortex and/or renal medulla.

Patient EducationClinical

Kidney Cysts

A cyst is a fluid-filled sac. You may get simple kidney cysts as you age; they are usually harmless. There are also some diseases which cause kidney cysts. One type is polycystic kidney disease (PKD). It runs in families. In PKD, many cysts grow in the kidneys. This can enlarge the kidneys and make them work poorly.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Q61.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
753.19 Cystic kidney diseas NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Q61.8Overview

Is Q61.8 (Cystic kidney disease) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other cystic kidney diseases on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Q61.8 group to?

When other cystic kidney diseases is the principal diagnosis on an inpatient stay, it groups to MS-DRG 698, 699, 700, with relative weights from 0.6899 to 1.6544 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Q61.8 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for other cystic kidney diseases on inpatient claims.

What is the ICD-9 equivalent of Q61.8?

Under the General Equivalence Mappings, other cystic kidney diseases converts to ICD-9-CM 753.19 (cystic kidney diseas NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.