ICD-10-CM > J00-J99 > J80-J84 > J84 > J84.1 > J84.11 > J84.113 J84.113 Idiopathic non-specific interstitial pneumonitis Billable/Specific Copy Code Copy Description Type 1 Excludes non-specific interstitial pneumonia NOS, or due to known underlying cause (J84.89)