ICD-10-CM category J84: Other interstitial pulmonary diseases
Category J84 is a heading in chapter 10 (Diseases of the respiratory system (J00-J99)), section Other respiratory diseases principally affecting the interstitium (J80-J84). It is not billable; report one of the 24 complete codes below.
Notes that apply to every J84 code
- Excludes1 (never coded together)
- drug-induced interstitial lung disorders (J70.2-J70.4)
- interstitial emphysema (J98.2)
- Excludes2 (not part of this condition, may be coded together)
- lung diseases due to external agents (J60-J70)
- Code also
- , if applicable, associated condition
Billable codes in J84
| Code | Description |
|---|---|
| J84.01 | Alveolar proteinosis |
| J84.02 | Pulmonary alveolar microlithiasis |
| J84.03 | Idiopathic pulmonary hemosiderosis |
| J84.09 | Other alveolar and parieto-alveolar conditions |
| J84.10 | Pulmonary fibrosis, unspecified |
| J84.111 | Idiopathic interstitial pneumonia, not otherwise specified |
| J84.112 | Idiopathic pulmonary fibrosis |
| J84.113 | Idiopathic non-specific interstitial pneumonitis |
| J84.114 | Acute interstitial pneumonitis |
| J84.115 | Respiratory bronchiolitis interstitial lung disease |
| J84.116 | Cryptogenic organizing pneumonia |
| J84.117 | Desquamative interstitial pneumonia |
| J84.170 | Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhere |
| J84.178 | Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere |
| J84.2 | Lymphoid interstitial pneumonia |
| J84.81 | Lymphangioleiomyomatosis |
| J84.82 | Adult pulmonary Langerhans cell histiocytosis |
| J84.83 | Surfactant mutations of the lung |
| J84.841 | Neuroendocrine cell hyperplasia of infancy |
| J84.842 | Pulmonary interstitial glycogenosis |
| J84.843 | Alveolar capillary dysplasia with vein misalignment |
| J84.848 | Other interstitial lung diseases of childhood |
| J84.89 | Other specified interstitial pulmonary diseases |
| J84.9 | Interstitial pulmonary disease, unspecified |
Sources
Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.
- ICD-10-CM FY2027 tabular order file (category titles)Version FY2027 · effective 2026-10-01 · file icd10cm_order_2027.txtSHA-256 38981fb2c1226e2b…
- ICD-10-CM FY2027 tabular list (chapter titles and ranges)Version FY2027 · effective 2026-10-01 · file 2027-code-tables-tabular-index.zipSHA-256 37baa476323714be…
- ICD-10-CM FY2027 code descriptions addenda (codes added, deleted and revised)Version FY2027 · effective 2026-10-01 · file icd10cm_codes_addenda_2027.txtSHA-256 cfba025073235af4…
- ICD-10 MS-DRG Definitions Manual v44 (text)Version v44 · effective 2026-10-01 · file fy2027-fr-icd10-ms-drg-definitions-manual-files-v44.zipSHA-256 ae4f6c11727fe91f…
- IPPS FY2027 Tables 6A-6K: new, invalid and revised ICD-10-CM/PCS codes, CC/MCC list changes and CC exclusionsVersion FY2027 (final rule; not reissued by CN3) · effective 2026-10-01 · file fy2027-ipps-fr-tables-6a-6k.zipSHA-256 ca0af87b0869a405…
- ICD-10-CM FY2027 POA-exempt codes (full list, additions, deletions and revisions)Version FY2027 · effective 2026-10-01 · file 2027-poa-exempt-codes.zipSHA-256 03f55091045024d0…
- ICD-10-CM to CMS-HCC V28 mappings, payment year 2027 initialVersion PY2027 initial ICD-10-CM mappings (dates of service 2026) · effective 2027-01-01 · file 2027 Initial ICD-10-CM Mappings.csvSHA-256 9c260b06d0dd2806…
- Medicare Coverage Database, current Billing and Coding Articles exportVersion MCD release 2026-10-08 · effective 2026-10-04 · file article.csvSHA-256 5e95c4a8ac3664be…
Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.