R84 — Abnormal findings in specimens from respiratory organs and thorax
Is R84 billable?
No — R84 is a non-billable header code. R84 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 10 billable codes beneath R84.
Billable codes under this header
- 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
R84 at a glance
| Code | R84 |
|---|---|
| Description | Abnormal findings in specimens from respiratory organs and thorax |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with R84 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- blood-stained sputum (R04.2)
Includes
Conditions classified to R84.
- 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 — never code together — inherited from R83-R89
The conditions below can never be reported together with R84 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- abnormal findings on antenatal screening of mother (O28.-)
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
Excludes2 — not included here — inherited from Chapter 18
The conditions below are not part of R84, but a patient may have both at the same time. When documentation supports it, R84 and the excluded code may both be reported.
Excludes2 — not included here — inherited from R83-R89
The conditions below are not part of R84, but a patient may have both at the same time. When documentation supports it, R84 and the excluded code may both be reported.
What codes fall under R84? (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
How long has R84 existed?
R84 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with R84?
ICD-10-CM declares these codes mutually exclusive with R84 — exactly one of each pair can be correct for a given encounter.