MCMCB Pro
R84

R84Abnormal findings in specimens from respiratory organs and thorax

Non-billable headerICD-10-CM

R84 is a non-billable header ICD-10-CM code for abnormal findings in specimens from respiratory organs and thorax. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • blood-stained sputum (R04.2)

Includes

Conditions this code covers.

  • abnormal findings in bronchial washings
  • abnormal findings in nasal secretions
  • abnormal findings in pleural fluid
  • abnormal findings in sputum
  • abnormal findings in throat scrapings

Risk adjustment

R84 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead R84

10 child codes. Green means billable.

Questions about R84

Is R84 a billable ICD-10-CM code?
No. R84 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does R84 sit in the tabular list?
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis (R83-R89).
What cannot be coded together with R84?
R84 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.