J84.1 – Other interstitial pulmonary diseases with fibrosis

ICD-10-CM 2027 diagnosis code · Other respiratory diseases principally affecting the interstitium

Non-billable header

ICD-10-CM code J84.1

Code: J84.1 (claims format: J841)
Description: Other interstitial pulmonary diseases with fibrosis
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
Parent codes: J84

Billable codes under J84.1

J84.1 is a header code and cannot be used on claims. Choose the most specific code:

J84.10 – Pulmonary fibrosis, unspecifiedBillable
J84.11 – Idiopathic interstitial pneumoniaHeader (more codes below)
J84.17 – Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhereHeader (more codes below)

Notes for J84.1

Excludes1 (not coded here):

pulmonary fibrosis (chronic) following radiation (J70.1)

Code also:

, if applicable, pulmonary fibrosis (chronic) due to inhalation of chemicals, gases, fumes or vapors (J68.4)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

J84 – Other interstitial pulmonary diseases

Excludes1 (not coded here):

drug-induced interstitial lung disorders (J70.2-J70.4)
interstitial emphysema (J98.2)

Excludes2 (not included here):

lung diseases due to external agents (J60-J70)

Code also:

, if applicable, associated condition

Related codes in J84

Frequently asked questions

What is ICD-10 code J84.1?

J84.1 is the ICD-10-CM code for other interstitial pulmonary diseases with fibrosis, in the block J80-J84 (Other respiratory diseases principally affecting the interstitium).

Is J84.1 a billable code?

No. J84.1 is a header code with more specific child codes; report one of the billable codes listed above.

What category does J84.1 belong to?

It belongs to category J84 – Other interstitial pulmonary diseases.

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.