J84.89 Other specified interstitial pulmonary diseases

Billable ICD-10-CM code, FY2026.

Applicable to

• Endogenous lipoid pneumonia
• Interstitial pneumonitis
• Non-specific interstitial pneumonitis NOS
• Organizing pneumonia NOS

Excludes1 (never code together)

• cryptogenic organizing pneumonia (J84.116)
• idiopathic non-specific interstitial pneumonitis (J84.113)
• lipoid pneumonia, exogenous or unspecified (J69.1)
• lymphoid interstitial pneumonia (J84.2)

Code first

• , if applicable:
• poisoning due to drug or toxin (T51-T65 with fifth or sixth character to indicate intent), for toxic pneumonopathy
• underlying cause of pneumonopathy, if known

Use additional code

• code, for adverse effect, to identify drug (T36-T50 with fifth or sixth character 5), if drug-induced

Applies from J84 Other interstitial pulmonary diseases

Excludes1 (never code together)

• 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

Applies from J84.8 Other specified interstitial pulmonary diseases

Excludes1 (never code together)

• exogenous lipoid pneumonia (J69.1)
• unspecified lipoid pneumonia (J69.1)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 280 — Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders
• CMS-HCC V22: HCC 112 — Fibrosis of Lung and Other Chronic Lung Disorders
• RxHCC V08: HCC 227 — Pulmonary Fibrosis, Except Idiopathic
• ESRD V24: HCC 112

MS-DRG index

Defines the logic of DRG(s) 196-198 in MDC 04.

Approximate ICD-9-CM (GEMs)

• 515 Postinflammatory pulmonary fibrosis (approximate)

Code annotations containing back-references to J84.89

Back-references to J84.89

• Type 1 Excludes: J69.1 Pneumonitis due to inhalation of oils and essences ("endogenous lipoid pneumonia (J84.89)")
• Type 1 Excludes: J84.113 Idiopathic non-specific interstitial pneumonitis ("non-specific interstitial pneumonia NOS, or due to known underlying cause (J84.89)")
• Type 1 Excludes: J84.116 Cryptogenic organizing pneumonia ("organizing pneumonia NOS, or due to known underlying cause (J84.89)")
• Code Also: M34.81 Systemic sclerosis with lung involvement ("other interstitial pulmonary diseases (J84.89)")

Back-references to J84

• Code Also: I27.23 Pulmonary hypertension due to lung diseases and hypoxia ("interstitial lung disease (J84.-)")

Diagnosis Index entries for J84.89

• BOOP (bronchiolitis obliterans organized pneumonia)
• Bronchiolitis (acute) (infective) (subacute) › obliterans › with organizing pneumonia (BOOP)
• Disease, diseased › lung › interstitial › specified NEC
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › bronchiolitis obliterans organized (BOOP)
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal) › lipid, lipoid › endogenous
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › cholesterol
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › interstitial › non-specific
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › lipid, lipoid (exogenous) › endogenous
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › organizing
• Pneumonitis (acute) (primary) › cholesterol
• Pneumonitis (acute) (primary) › interstitial (chronic)
• Pneumonitis (acute) (primary) › interstitial (chronic) › non-specific

Nearby codes

• J84.84 Other interstitial lung diseases of childhood
• J84.841 Neuroendocrine cell hyperplasia of infancy
• J84.842 Pulmonary interstitial glycogenosis
• J84.843 Alveolar capillary dysplasia with vein misalignment
• J84.848 Other interstitial lung diseases of childhood
• J84.89 Other specified interstitial pulmonary diseases (this code)
• J84.9 Interstitial pulmonary disease, unspecified