FY2026
Effective from
- Inherited rules changed
Idiopathic non-specific interstitial pneumonitis
Billable diagnosis code
CDC/NCHS · FY2026non-specific interstitial pneumonia NOS, or due to known underlying cause (J84.89)
, if applicable, associated condition
, if applicable, pulmonary fibrosis (chronic) due to inhalation of chemicals, gases, fumes or vapors (J68.4)
pulmonary fibrosis (chronic) following radiation (J70.1)
Coverage depends on the payer, service and applicable policy. A billable code does not guarantee payment.
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗First observed · 2015-10-01
Latest recorded change · FY2026
Effective from
Idiopathic non-specific interstitial pneumonitis
Billable diagnosis code
CDC/NCHS · FY2026| All editions | Effective from | Code history |
|---|---|---|
| FY2016 | 2015-10-01 | First observed |
| FY2017 | 2016-10-01 | Inherited rules changed |
| FY2018 | 2017-10-01 | Inherited rules changed |
| FY2019 | 2018-10-01 | No tabular change |
| FY2020 | 2019-10-01 | No tabular change |
| FY2020 · April | 2020-04-01 | No tabular change |
| FY2021 | 2020-10-01 | No tabular change |
| FY2021 · 01-01 | 2021-01-01 | No tabular change |
| FY2022 | 2021-10-01 | No tabular change |
| FY2022 · 04-01 | 2022-04-01 | No tabular change |
| FY2023 | 2022-10-01 | No tabular change |
| FY2023 · 04-01 | 2023-04-01 | No tabular change |
| FY2024 | 2023-10-01 | No tabular change |
| FY2024 · 04-01 | 2024-04-01 | No tabular change |
| FY2025 | 2024-10-01 | Inherited rules changed |
| FY2025 · 04-01 | 2025-04-01 | No tabular change |
| FY2026 | 2025-10-01 | Inherited rules changed |
| FY2026 · April | 2026-04-01 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
Historical mapping only; not an automatic code substitution.
non-specific interstitial pneumonia NOS, or due to known underlying cause (J84.89)
When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).
, if applicable, associated condition
pulmonary fibrosis (chronic) following radiation (J70.1)
, if applicable, pulmonary fibrosis (chronic) due to inhalation of chemicals, gases, fumes or vapors (J68.4)
Other entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| J84.111 | Idiopathic interstitial pneumonia, not otherwise specified | Billable / specific |
| J84.112 | Idiopathic pulmonary fibrosis | Billable / specific |
| J84.114 | Acute interstitial pneumonitis | Billable / specific |
| J84.115 | Respiratory bronchiolitis interstitial lung disease | Billable / specific |
| J84.116 | Cryptogenic organizing pneumonia | Billable / specific |
| J84.117 | Desquamative interstitial pneumonia | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗
Excludes 1 · idiopathic non-specific interstitial pneumonitis (J84.113)