J84.11 – Idiopathic interstitial pneumonia

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

Non-billable header

ICD-10-CM code J84.11

Code: J84.11 (claims format: J8411)
Description: Idiopathic interstitial pneumonia
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 › J84.1

Billable codes under J84.11

J84.11 is a header code and cannot be used on claims. Choose the most specific code:

J84.111 – Idiopathic interstitial pneumonia, not otherwise specifiedBillable
J84.112 – Idiopathic pulmonary fibrosisBillable
J84.113 – Idiopathic non-specific interstitial pneumonitisBillable
J84.114 – Acute interstitial pneumonitisBillable
J84.115 – Respiratory bronchiolitis interstitial lung diseaseBillable
J84.116 – Cryptogenic organizing pneumoniaBillable
J84.117 – Desquamative interstitial pneumoniaBillable

Notes for J84.11

Excludes1 (not coded here):

lymphoid interstitial pneumonia (J84.2)
pneumocystis pneumonia (B59)

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

J84.1 – Other interstitial pulmonary diseases with fibrosis

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)

Related codes in J84.1

Frequently asked questions

What is ICD-10 code J84.11?

J84.11 is the ICD-10-CM code for idiopathic interstitial pneumonia, in the block J80-J84 (Other respiratory diseases principally affecting the interstitium).

Is J84.11 a billable code?

No. J84.11 is a header code with more specific child codes; report one of the billable codes listed above.

What category does J84.11 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.