ICD-10-CM 2027
ICD-10 code for reactive airways dysfunction syndrome
Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors
From the official ICD-10-CM alphabetic index entry “Syndrome › reactive airways dysfunction”. Page updated September 29, 2026.
About coding reactive airways dysfunction syndrome
The ICD-10-CM code for reactive airways dysfunction syndrome is J68.3 (Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors).
Within J68, choose J68.3 (Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors) only when documentation doesn't support a more specific option: bronchitis and pneumonitis due to chemicals, gases, fumes and vapors (J68.0), pulmonary edema due to chemicals, gases, fumes and vapors (J68.1), upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified (J68.2), chronic respiratory conditions due to chemicals, gases, fumes and vapors (J68.4), other respiratory conditions due to chemicals, gases, fumes and vapors (J68.8) and unspecified respiratory condition due to chemicals, gases, fumes and vapors (J68.9).
Code first: (T51-T65) to identify cause.
Use an additional code to identify associated respiratory conditions, such as: acute respiratory failure (J96.0-).
Common questions about reactive airways dysfunction syndrome ICD-10 codes
What is the ICD-10 code for reactive airways dysfunction syndrome?
- J68.3 — Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors.
Is J68.3 billable?
- Yes. J68.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J68.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J68.3 as a principal diagnosis.
Is J68.3 a CC or MCC?
- No. J68.3 is neither a CC nor an MCC under MS-DRG v44.0.