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J84.9

✓ Billable

Interstitial pulmonary disease, unspecified

Diseases of the respiratory system (J00-J99)

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Also Known As

Interstitial pneumonia NOS

❌ Excludes1

inherited from J84

Rules from parent category J84: Other interstitial pulmonary diseases

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

⚠️ Excludes2

inherited from J84

Rules from parent category J84: Other interstitial pulmonary diseases

  • • lung diseases due to external agents (J60-J70)

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Code Information

CodeJ84.9
BillableYes
ParentJ84
CategoryDiseases of the respiratory system (J00-J99)
Excludes12 rule(s)
Excludes21 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)