R84
ICD-10Non-billable categoryAbnormal findings in specimens from resp org/thrx
Official ICD-10-CM descriptor (FY2026)
Abnormal findings in specimens from respiratory organs and thorax
R84 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- abnormal findings in bronchial washings
- abnormal findings in nasal secretions
- abnormal findings in pleural fluid
- abnormal findings in sputum
- abnormal findings in throat scrapings
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- blood-stained sputum (R04.2)
More specific codes under R84
- R84.0Abnormal level of enzymes in specimens from resp org/thrx
- R84.1Abnormal level of hormones in specimens from resp org/thrx
- R84.2Abn lev drug/meds/biol subst in specimens from resp org/thrx
- R84.3Abn lev substnc nonmed source in specmn from resp org/thrx
- R84.4Abnormal immunolog findings in specimens from resp org/thrx
- R84.5Abnormal microbiolog findings in specmn from resp org/thrx
- R84.6Abnormal cytolog findings in specimens from resp org/thrx
- R84.7Abnormal histolog findings in specimens from resp org/thrx
- R84.8Oth abnormal findings in specimens from resp org/thrx
- R84.9Unsp abnormal finding in specimens from resp org/thrx
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.