R84.8
Other abnormal findings in specimens from respiratory organs and thorax
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 10 never code together
R83-R89block
Excludes1
- abnormal findings on antenatal screening of mother (O28.-)O28.-
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
R00-R99chapter
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 15
R84.8code
Inclusion terms
- Abnormal chromosomal findings in specimens from respiratory organs and thorax
R84code
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
R00-R99chapter
Notes
- This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
- Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
- The conditions and signs or symptoms included in categories R00-R94 consist of:R00-R94
- (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
- (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- (c) provisional diagnosis in a patient who failed to return for further investigation or care;
- (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
- (e) cases in which a more precise diagnosis was not available for any other reason;
- (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
Index entries leading here 1
- Abnormal, abnormality, abnormalities — see also Anomaly
Alongside this code 9 same parent — R84
R84.0 Abnormal level of enzymes in specimens from resp org/thrx R84.1 Abnormal level of hormones in specimens from resp org/thrx R84.2 Abn lev drug/meds/biol subst in specimens from resp org/thrx R84.3 Abn lev substnc nonmed source in specmn from resp org/thrx R84.4 Abnormal immunolog findings in specimens from resp org/thrx R84.5 Abnormal microbiolog findings in specmn from resp org/thrx R84.6 Abnormal cytolog findings in specimens from resp org/thrx R84.7 Abnormal histolog findings in specimens from resp org/thrx R84.9 Unsp abnormal finding in specimens from resp org/thrx
Medications 2
102 Signs and Symptoms, Respiratory drugs 692 Congenital, Hereditary, and Neonatal Diseases and Abnormalities drugs
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.