Additional Information
From parent codes: R00-R99 (Chapter 18)
More Specific Codes (10)
R84.0Abnormal level of enzymes in specimens from respiratory organs and thorax→R84.1Abnormal level of hormones in specimens from respiratory organs and thorax→R84.2Abnormal level of other drugs, medicaments and biological substances in specimens from respiratory organs and thorax→R84.3Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax→R84.4Abnormal immunological findings in specimens from respiratory organs and thorax→R84.5Abnormal microbiological findings in specimens from respiratory organs and thorax→R84.6Abnormal cytological findings in specimens from respiratory organs and thorax→R84.7Abnormal histological findings in specimens from respiratory organs and thorax→R84.8Other abnormal findings in specimens from respiratory organs and thorax→R84.9Unspecified abnormal finding in specimens from respiratory organs and thorax→