R84

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files.

• R84.0 Abnormal level of enzymes in specimens from respiratory organs and thorax Billable
• R84.1 Abnormal level of hormones in specimens from respiratory organs and thorax Billable
• R84.2 Abnormal level of other drugs, medicaments and biological substances in specimens from respiratory organs and thorax Billable
• R84.3 Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax Billable
• R84.4 Abnormal immunological findings in specimens from respiratory organs and thorax Billable
• R84.5 Abnormal microbiological findings in specimens from respiratory organs and thorax Billable
• R84.6 Abnormal cytological findings in specimens from respiratory organs and thorax Billable
• R84.7 Abnormal histological findings in specimens from respiratory organs and thorax Billable
• R84.8 Other abnormal findings in specimens from respiratory organs and thorax Billable
• R84.9 Unspecified abnormal finding in specimens from respiratory organs and thorax Billable

Version History

How R84 appears in each release imported from the official files, newest first.

1. FY 2027 Effective October 1, 2026

   Current

   Abnormal findings in specimens from respiratory organs and thorax

2. FY 2026 Effective October 1, 2025

   Unchanged

   Abnormal findings in specimens from respiratory organs and thorax