J84.02 – Pulmonary alveolar microlithiasis

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

Billable code

ICD-10-CM code J84.02

Code: J84.02 (claims format: J8402)
Description: Pulmonary alveolar microlithiasis
Billable: Yes – valid for HIPAA-covered transactions
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 › J84.0

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

Index terms for J84.02

Entries in the ICD-10-CM alphabetic index that lead to this code:

Microlithiasis, alveolar, pulmonary

Related codes in J84.0

J84.01 – Alveolar proteinosisBillable
J84.03 – Idiopathic pulmonary hemosiderosisBillable
J84.09 – Other alveolar and parieto-alveolar conditionsBillable

Frequently asked questions

What is ICD-10 code J84.02?

J84.02 is the ICD-10-CM code for pulmonary alveolar microlithiasis, in the block J80-J84 (Other respiratory diseases principally affecting the interstitium).

Is J84.02 a billable code?

Yes. J84.02 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does J84.02 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.