J84.0 Alveolar and parieto-alveolar conditionsNon-billable header with 4 child codes.
J84.01 Alveolar proteinosisJ84.02 Pulmonary alveolar microlithiasisJ84.03 Idiopathic pulmonary hemosiderosisJ84.09 Other alveolar and parieto-alveolar conditionsI27.23 Pulmonary hypertension due to lung diseases and hypoxia ("interstitial lung disease (J84.-)")J84 Other interstitial pulmonary diseasesJ84.0 Alveolar and parieto-alveolar conditions (this code)J84.01 Alveolar proteinosisJ84.02 Pulmonary alveolar microlithiasisJ84.03 Idiopathic pulmonary hemosiderosisJ84.09 Other alveolar and parieto-alveolar conditionsJ84.1 Other interstitial pulmonary diseases with fibrosis