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ICD-10-CM 2027 diagnosis code

R84Abnormal findings in specimens from respiratory organs and thorax

Not billable — use a more specific code

R84 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it.Short description: Abnormal findings in specimens from resp org/thrx

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R84

R84 is the ICD-10-CM diagnosis code for abnormal findings in specimens from respiratory organs and thorax. It belongs to block R83-R89 (abnormal findings on examination of other body fluids, substances and tissues, without diagnosis) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: R84.0 (thorax), R84.1 (thorax), R84.2 (thorax), R84.3 (thorax), R84.4 (thorax), R84.5 (thorax), R84.6 (thorax), R84.7 (thorax) and 2 more.

Don't report R84 together with the conditions in its Excludes1 note: blood-stained sputum (R04.2).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under R84

Coding notes

IncludesFurther defines the content of the category
  • abnormal findings in bronchial washings
  • abnormal findings in nasal secretions
  • abnormal findings in pleural fluid
  • abnormal findings in sputum
  • abnormal findings in throat scrapings
Excludes1Not coded here — never report together with this code
  • blood-stained sputum (R04.2)

Notes that apply from higher levels

Instructions written at a parent level also apply to R84.

Broader instructions also apply from R83-R89 Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis and Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about R84

Is R84 billable?

No. R84 is a header code. Report one of its more specific subcodes instead.