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ICD-10-CM 2027 diagnosis code

R82.89Other abnormal findings on cytological and histological examination of urine

✓ Billable / specific

R82.89 is a valid, billable ICD-10-CM code for other abnormal findings on cytological and histological examination of urine. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Other abn findings on cytolog and histolog exam of urine

Code last changed in FY2020 (effective October 1, 2019). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R82.89

R82.89 is the ICD-10-CM diagnosis code for other abnormal findings on cytological and histological examination of urine. It belongs to category R82 (other and unspecified abnormal findings in urine), block R80-R82 (abnormal findings on examination of urine, without diagnosis) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within R82.8, choose R82.89 (Other abnormal findings on cytological and histological examination of urine) only when documentation doesn't support a more specific option: Pyuria (R82.81).

Use an additional code to identify any retained foreign body, if applicable (Z18.-).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 695 (Kidney and Urinary Tract Signs and Symptoms with MCC, relative weight 1.1139) and DRG 696 (Kidney and Urinary Tract Signs and Symptoms without MCC, relative weight 0.6679), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2020, effective October 1, 2019.

Notes that apply from higher levels

Instructions written at a parent level also apply to R82.89.

› From R82 Other and unspecified abnormal findings in urine
Includes
  • chromoabnormalities in urine
Excludes2
  • hematuria (R31.-)
Use additional code
  • code to identify any retained foreign body, if applicable (Z18.-)

Broader instructions also apply from R80-R82 Abnormal findings on examination of urine, without diagnosis and Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to R82.89.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2020 (effective 10/1/2019): Added
  • No changes since FY2020.

Common questions about R82.89

Is R82.89 billable?

Yes. R82.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can R82.89 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict R82.89 as a principal diagnosis.

Is R82.89 a CC or MCC?

No. R82.89 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does R82.89 group to?

R82.89 is used in the MS-DRG v44.0 logic for MS-DRG 695 (Kidney and Urinary Tract Signs and Symptoms with MCC) and MS-DRG 696 (Kidney and Urinary Tract Signs and Symptoms without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.