2026 ICD-10-CM Diagnosis Code R82.89Other abnormal findings on cytological and histological examination of urine

ICD-10-CM Codes›R00–R99›R80-R82›R82

ICD-10-CM R82.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R82.89 is a billable ICD-10-CM diagnosis code for other abnormal findings on cytological and histological examination of urine. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 695 through 696. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Genitourinary signs and symptoms.

Code Identity

ICD-10-CM Code
R82.89
Billable Status
Yes — Valid for Submission
Code Describes
Other abnormal findings on cytological and histological examination of urine
Short Description
Other abn findings on cytolog and histolog exam of urine
Parent Code
R82.8
Abnormal findings on cytological and histological examination of urine

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR80-R82Abnormal findings on examination of urine, without diagnosis
CategoryR82Other and unspecified abnormal findings in urine
This CodeR82.89Other abnormal findings on cytological and histological examination of urine

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • High-grade urothelial carcinoma found on urine cytology
  • Low-grade urothelial neoplasia found on urine cytology
  • Malignant neoplasm of urinary system suspected
  • Podocyturia
  • Suspected high-grade urothelial carcinoma found on urine cytology
  • Urine cytology
  • Urine cytology abnormal
  • Urine cytology borderline
  • Urine erythrocyte test = +
  • Urine erythrocyte test = ++
  • Urine erythrocyte test = +++
  • Urine microscopy epithelial cells present
  • Urine microscopy: presence of cells - finding
  • Urine microscopy:RBC's present
  • Urothelial cancer suspected

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.

    • Abnormal, abnormality, abnormalities
      • urine (constituents)
        • cytological examination
    • Abnormal, abnormality, abnormalities
      • urine (constituents)
        • histological examination

Clinical ClassificationClinical

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

CCSR SYM011
Genitourinary signs and symptoms
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Urinalysis

A urinalysis is a test of your urine. It is often done to check for a urinary tract infection, kidney problems, or diabetes. You may also have one during a checkup, if you are admitted to the hospital, before you have surgery, or if you are pregnant. It can also monitor some medical conditions and treatments.

Read the full article at MedlinePlus

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

Code History & ChangesHistory

Replacement R82.89 replaces the following previously assigned code(s):

  • R82.8 - Abnormal findings on cytolog and histolog exam of urine
FY 2020AddedAdded to the ICD-10-CM code setEffective October 1, 2019.
FY 2021–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R82.89Overview

Is R82.89 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other abnormal findings on cytological and histological examination of urine on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does R82.89 group to?

When other abnormal findings on cytological and histological examination of urine is the principal diagnosis on an inpatient stay, it groups to MS-DRG 695, 696, with relative weights from 0.6890 to 1.1438 depending on complications. Higher weights mean higher Medicare reimbursement.

Can R82.89 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the other abnormal findings on cytological and histological examination of urine is established, that condition takes the principal position instead.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.