2026 ICD-10-CM Diagnosis Code R81Glycosuria

ICD-10-CM Codes›R00–R99›R80-R82›R81

ICD-10-CM R81
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R81 is a billable ICD-10-CM diagnosis code for glycosuria. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 637 through 639. 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 Abnormal findings without diagnosis.

Code Identity

ICD-10-CM Code
R81
Billable Status
Yes — Valid for Submission
Code Describes
Glycosuria
Chapter
R80-R82
Abnormal findings on examination of urine, without diagnosis

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR80-R82Abnormal findings on examination of urine, without diagnosis
CategoryR81Glycosuria
This CodeR81Glycosuria

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Glucose concentration, dipstick - finding
  • Glycosuria
  • Urine glucose test = +
  • Urine glucose test = ++
  • Urine glucose test = +++
  • Urine glucose test = ++++
  • Urine glucose test = trace

Tabular List NotesGuidance

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

Type 1 Excludes

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)
        • glucose
    • Findings, abnormal, inconclusive, without diagnosis
      • glycosuria
    • Findings, abnormal, inconclusive, without diagnosis
      • urine
        • glucose
    • Findings, abnormal, inconclusive, without diagnosis
      • urine
        • sugar
    • Glycosuria
    • Sugar
      • in urine

Clinical ClassificationClinical

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

CCSR SYM017
Abnormal findings without diagnosis
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Glycosuria

    the appearance of an abnormally large amount of glucose in the urine, such as more than 500 mg/day in adults. it can be due to hyperglycemia or genetic defects in renal reabsorption (renal glycosuria).

  • Glycosuria, Renal

    an autosomal inherited disorder due to defective reabsorption of glucose by the proximal renal tubules. the urinary loss of glucose can reach beyond 50 g/day. it is attributed to the mutations in the sodium-glucose transporter 2 encoded by the slc5a2 gene.

Patient EducationClinical

Urine and Urination

Your kidneys make urine by filtering wastes and extra water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, urine travels down two thin tubes called ureters to the bladder. The bladder stores urine until you are ready to urinate.

Read the full article at MedlinePlus

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

Convert R81 to ICD-9-CMHistory

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

ICD-9-CM
791.5 Glycosuria
Exact Match The mapping is direct, with no qualifiers.

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 R81Overview

Is R81 (Glycosuria) a billable code?

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

What MS-DRG does R81 group to?

When glycosuria is the principal diagnosis on an inpatient stay, it groups to MS-DRG 637, 638, 639, with relative weights from 0.6212 to 1.4367 depending on complications. Higher weights mean higher Medicare reimbursement.

Can R81 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the glycosuria is established, that condition takes the principal position instead.

What is the ICD-9 equivalent of R81?

Under the General Equivalence Mappings, glycosuria converts to ICD-9-CM 791.5 (glycosuria). The mapping is a direct match.

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.