2026 ICD-10-CM Diagnosis Code J84Other interstitial pulmonary diseases
J84 is a non-billable ICD-10-CM category code for other interstitial pulmonary diseases, so it cannot be submitted on claims. Use a more specific code from this category instead, such as J84.01, J84.02, J84.03, and J84.09.
Code Identity
Code Classification
Specific Coding for Other interstitial pulmonary diseasesOverview
Non-specific codes like J84 require more characters. Use one of these billable codes instead:
J84.0 for Alveolar and parieto-alveolar conditions
Use J84.01 for Alveolar proteinosis
Use J84.02 for Pulmonary alveolar microlithiasis
Use J84.03 for Idiopathic pulmonary hemosiderosis
Use J84.09 for Other alveolar and parieto-alveolar conditions
J84.1 for Other interstitial pulmonary diseases with fibrosis
Use J84.10 for Pulmonary fibrosis, unspecified
J84.11 for Idiopathic interstitial pneumonia
J84.17 for Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere
Use J84.2 for Lymphoid interstitial pneumonia
J84.8 for Other specified interstitial pulmonary diseases
Use J84.81 for Lymphangioleiomyomatosis
Use J84.82 for Adult pulmonary Langerhans cell histiocytosis
Use J84.83 for Surfactant mutations of the lung
J84.84 for Other interstitial lung diseases of childhood
Use J84.89 for Other specified interstitial pulmonary diseases
Use J84.9 for Interstitial pulmonary disease, unspecified
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Code Also
- , if applicable, associated condition
Type 1 Excludes
Type 2 Excludes
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Patient EducationClinical
Interstitial Lung Diseases
Interstitial lung disease is the name for a large group of diseases that inflame or scar the lungs. The inflammation and scarring make it hard to get enough oxygen. The scarring is called pulmonary fibrosis.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code HistoryHistory
Questions About J84Overview
Is J84 (Other interstitial pulmonary diseases) a billable code?
No. This is a category header that groups the codes for other interstitial pulmonary diseases, and headers cannot be submitted on claims. Claims for other interstitial pulmonary diseases need a more specific code from this category, such as J84.01, J84.02, and J84.03.
