J39.3
ICD-10BillableUpper respiratory tract hypersensitivity reaction, site unsp
Official ICD-10-CM descriptor (FY2026)
Upper respiratory tract hypersensitivity reaction, site unspecified
J39.3 is valid for submission on a claim — CMS flags it as a billable, specific code.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- hypersensitivity reaction of upper respiratory tract, such as:
- extrinsic allergic alveolitis (J67.9)
- pneumoconiosis (J60-J67.9)
Related codes in J39
Where this code sits
- Parent code
- J39
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.