10ICD Code Hub

J39.3

Billable code

Upper respiratory tract hypersensitivity reaction, site unspecified

The ICD-10 code for upper respiratory tract hypersensitivity reaction, site unspecified is J39.3.

Clinical notes

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

  • hypersensitivity reaction of upper respiratory tract, such as:
  • extrinsic allergic alveolitis (J67.9)
  • pneumoconiosis (J60-J67.9)

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Related codes in this category

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

J39.3 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.