J68.2

Billable

Upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified

HCC Category Mapping

V28HCC 280 — Chronic Obstructive Pulmonary Disease

0.334

V24HCC 112 — Fibrosis of Lung and Other Chronic Lung Disorders

0.268

ESRDHCC 112 — Fibrosis of Lung and Other Chronic Lung Disorders

0.000

What This Code Means

Inflammation of the upper airways (nose, throat, larynx) caused by inhalation of chemicals, gases, fumes, or vapors.

Coding Tips

•This code is used when inflammation is limited to upper respiratory structures only
•Document the specific irritant and route of exposure to justify the diagnosis

Clinical Significance

Upper respiratory inflammation from chemical exposure affects the nose, throat, and larynx and represents a less severe form of chemical inhalation injury compared to lower airway involvement. While it is still clinically important, it is significant for risk adjustment because it maps to the same chronic lung disease HCCs and may indicate ongoing occupational exposure risk.

Documentation Requirements

✓Documentation that inflammation is limited to upper respiratory structures (nose, pharynx, larynx)
✓Identification of the specific chemical, gas, fume, or vapor causing the inflammation
✓Endoscopic or clinical examination findings confirming upper airway involvement
✓Absence of lower respiratory involvement to justify this code over J68.0
✓Circumstances and route of exposure
✓Treatment plan and follow-up arrangements

Commonly Confused Codes

J68.0 (Bronchitis and pneumonitis due to chemicals) — lower airway involvement, not upper J68.3 (Other acute respiratory conditions due to chemicals) — residual category for non-specific acute symptoms J30.x (Allergic rhinitis) — allergic mechanism, not chemical irritant exposure J04.x (Acute laryngitis/tracheitis) — infectious cause vs. chemical irritant cause

Code Hierarchy

└J68Respiratory conditions due to inhalation of chemicals, gases, fumes and vapors └J68.2Upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified

└J68.2Upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified