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  3. Ch. R00-R99
  4. Sec. R83-R89
  5. Category R84
Category R84

Abnormal findings in specimens from respiratory organs and thorax

Clinical Classification Guidelines

Specific Diagnosis Codes

Abnormal level of enzymes in specimens from respiratory organs and thorax
R84.0
Abnormal level of hormones in specimens from respiratory organs and thorax
R84.1
Abnormal level of other drugs, medicaments and biological substances in specimens from respiratory organs and thorax
R84.2
Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax
R84.3
Abnormal immunological findings in specimens from respiratory organs and thorax
R84.4
Abnormal microbiological findings in specimens from respiratory organs and thorax
R84.5
Abnormal cytological findings in specimens from respiratory organs and thorax
R84.6
Abnormal histological findings in specimens from respiratory organs and thorax
R84.7
Other abnormal findings in specimens from respiratory organs and thorax
R84.8
Unspecified abnormal finding in specimens from respiratory organs and thorax
R84.9
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Data updated for October 2025 release.

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