J84 – Other interstitial pulmonary diseases
ICD-10-CM 2027 diagnosis code · Other respiratory diseases principally affecting the interstitium
ICD-10-CM code
J84
- Code
J84(claims format:J84)- Description
- Other interstitial pulmonary diseases
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 10. Diseases of the respiratory system (J00-J99)
- Block
- J80-J84 Other respiratory diseases principally affecting the interstitium
Billable codes under J84
J84 is a header code and cannot be used on claims. Choose the most specific code:
- J84.0 – Alveolar and parieto-alveolar conditionsHeader (more codes below)
- J84.1 – Other interstitial pulmonary diseases with fibrosisHeader (more codes below)
- J84.2 – Lymphoid interstitial pneumoniaBillable
- J84.8 – Other specified interstitial pulmonary diseasesHeader (more codes below)
- J84.9 – Interstitial pulmonary disease, unspecifiedBillable
Notes for J84
Excludes1 (not coded here):
Code also:
- , if applicable, associated condition
Frequently asked questions
What is ICD-10 code J84?
J84 is the ICD-10-CM code for other interstitial pulmonary diseases, in the block J80-J84 (Other respiratory diseases principally affecting the interstitium).
Is J84 a billable code?
No. J84 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.