2026 ICD-10-CM Diagnosis Code R82.992Hyperoxaluria

ICD-10-CM Codes›R00–R99›R80-R82›R82

ICD-10-CM R82.992
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R82.992 is a billable ICD-10-CM diagnosis code for hyperoxaluria. 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
R82.992
Billable Status
Yes — Valid for Submission
Code Describes
Hyperoxaluria
Short Description
Hyperoxaluria
Same as the full description in the CMS dataset.
Parent Code
R82.99
Other abnormal findings in 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 CodeR82.992Hyperoxaluria

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Hyperoxaluria

Tabular List NotesGuidance

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

Type 1 Excludes

  • primary hyperoxaluria E72.53
  • secondary hyperoxaluria E72.54

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.

    • Disorder(of)
      • glycine metabolism
        • hyperoxaluria
    • Disorder(of)
      • metabolism NOS
        • amino-acid
          • glycine
            • hyperoxaluria
    • Hyperoxaluria

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

Clinical InformationClinical

  • Hyperoxaluria

    excretion of an excessive amount of oxalates in the urine.

  • Hyperoxaluria, Primary

    a genetic disorder characterized by excretion of large amounts of oxalates in urine; nephrolithiasis; nephrocalcinosis; early onset of renal failure; and often a generalized deposit of calcium oxalate. there are subtypes classified by the enzyme defects in glyoxylate metabolism.

  • Oxalates

    derivatives of oxalic acid. included under this heading are a broad variety of acid forms, salts, esters, and amides that are derived from the ethanedioic acid structure.

Patient EducationClinical

Kidney Stones

A kidney stone is a solid piece of material that forms in the kidney from substances in the urine. It may be as small as a grain of sand or as large as a pearl. Most kidney stones pass out of the body without help from a doctor. But sometimes a stone will not go away.

Read the full article at MedlinePlus

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

Code History & ChangesHistory

Replaced This code was replaced in the FY 2026 code set by:

  • E72.540 - Dietary hyperoxaluria
  • E72.540 - Dietary hyperoxaluria
  • E72.540 - Dietary hyperoxaluria
  • E72.540 - Dietary hyperoxaluria
  • E72.540 - Dietary hyperoxaluria
  • E72.540 - Dietary hyperoxaluria
  • E72.541 - Enteric hyperoxaluria
  • E72.541 - Enteric hyperoxaluria
  • E72.541 - Enteric hyperoxaluria
  • E72.541 - Enteric hyperoxaluria
  • E72.541 - Enteric hyperoxaluria
  • E72.541 - Enteric hyperoxaluria
  • E72.548 - Other secondary hyperoxaluria
  • E72.548 - Other secondary hyperoxaluria
  • E72.548 - Other secondary hyperoxaluria
  • E72.548 - Other secondary hyperoxaluria
  • E72.548 - Other secondary hyperoxaluria
  • E72.548 - Other secondary hyperoxaluria
  • E72.549 - Secondary hyperoxaluria, unspecified
  • E72.549 - Secondary hyperoxaluria, unspecified
  • E72.549 - Secondary hyperoxaluria, unspecified
  • E72.549 - Secondary hyperoxaluria, unspecified
  • E72.549 - Secondary hyperoxaluria, unspecified
  • E72.549 - Secondary hyperoxaluria, unspecified

Replacement R82.992 replaces the following previously assigned code(s):

  • R82.99 - Other abnormal findings in urine
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R82.992Overview

Is R82.992 (Other abnormal findings in urine) a billable code?

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

What MS-DRG does R82.992 group to?

When hyperoxaluria 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 R82.992 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the hyperoxaluria 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.