R84.4Billable
Abnormal immunological findings in specimens from respiratory organs and thorax
Short description: Abnormal immunolog findings in specimens from resp org/thrx
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- Category
- R84
- Effective date
- October 1, 2026
Related codes in category R84
R84Abnormal findings in specimens from resp org/thrxR84.0Abnormal level of enzymes in specimens from resp org/thrxYesR84.1Abnormal level of hormones in specimens from resp org/thrxYesR84.2Abn lev drug/meds/biol subst in specimens from resp org/thrxYesR84.3Abn lev substnc nonmed source in specmn from resp org/thrxYesR84.5Abnormal microbiolog findings in specmn from resp org/thrxYesR84.6Abnormal cytolog findings in specimens from resp org/thrxYesR84.7Abnormal histolog findings in specimens from resp org/thrxYesR84.8Oth abnormal findings in specimens from resp org/thrxYesR84.9Unsp abnormal finding in specimens from resp org/thrxYes
Frequently asked questions
What is ICD-10 code R84.4?
R84.4 is an ICD-10-CM diagnosis code for Abnormal immunological findings in specimens from respiratory organs and thorax.
Is R84.4 a billable code?
Yes. R84.4 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is R84.4 in?
R84.4 falls under Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
When did R84.4 become effective?
R84.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to R84.4?
R84.4 belongs to category R84, which includes 10 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.