ICD-10-CM Tabular Index · Chapter 18 · FY 2027 R89

Abnormal findings in specimens from other organs, systems and tissues (R89) ICD-10-CM

The R89 code range covers abnormal findings in specimens from other organs, systems and tissues with 11 ICD-10-CM diagnosis codes. 10 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
11
Diagnosis Codes
10
Billable Codes
R89
Code Range
R83–R89
Parent Section

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

ICD-10-CM

Codes in the R89 Range 11 codes · 10 billable

11 of 11 shown
  • R89 Abnormal findings in specimens from other organs, systems and tissuesNon-billable
  • R89.0 Abnormal level of enzymes in specimens from other organs, systems and tissues
  • R89.1 Abnormal level of hormones in specimens from other organs, systems and tissues
  • R89.2 Abnormal level of other drugs, medicaments and biological substances in specimens from other organs, systems and tissues
  • R89.3 Abnormal level of substances chiefly nonmedicinal as to source in specimens from other organs, systems and tissues
  • R89.4 Abnormal immunological findings in specimens from other organs, systems and tissues
  • R89.5 Abnormal microbiological findings in specimens from other organs, systems and tissues
  • R89.6 Abnormal cytological findings in specimens from other organs, systems and tissues
  • R89.7 Abnormal histological findings in specimens from other organs, systems and tissues
  • R89.8 Other abnormal findings in specimens from other organs, systems and tissues
  • R89.9 Unspecified abnormal finding in specimens from other organs, systems and tissues

About the R89 Code Range

Tests of specimens from other organs, body systems, and tissues can show abnormal findings without identifying a diagnosis. R89 groups these findings by what the examination finds.

R89.0 and R89.1 distinguish abnormal enzyme and hormone levels. R89.2 concerns drugs, medicines, and biological substances; R89.3 concerns substances chiefly from nonmedicinal sources.

The remaining subdivisions distinguish immune-related findings (R89.4), microbiological findings (R89.5), cell findings (R89.6), and tissue findings (R89.7). R89.8 identifies other abnormal findings, while R89.9 identifies an unspecified abnormal finding.

Questions About This Page

How many billable codes are in the R89 range?

Of the 11 codes in this range, 10 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.

What does the R89 range classify?

The range classifies abnormal findings in specimens from other organs, systems and tissues. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.