J39.3 Upper respiratory tract hypersensitivity reaction, site unspecified

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

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

Applies from J39 Other diseases of upper respiratory tract

Excludes1 (never code together)

• acute respiratory infection NOS (J22)
• acute upper respiratory infection (J06.9)
• upper respiratory inflammation due to chemicals, gases, fumes or vapors (J68.2)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 478.8 Upper respiratory tract hypersensitivity reaction, site unspecified

Diagnosis Index entries for J39.3

• Hypersensitive, hypersensitiveness, hypersensitivity › reaction › upper respiratory tract NEC

Nearby codes

• J39 Other diseases of upper respiratory tract
• J39.0 Retropharyngeal and parapharyngeal abscess
• J39.1 Other abscess of pharynx
• J39.2 Other diseases of pharynx
• J39.3 Upper respiratory tract hypersensitivity reaction, site unspecified (this code)
• J39.8 Other specified diseases of upper respiratory tract
• J39.9 Disease of upper respiratory tract, unspecified