All ICD10 Codes

J84.178

Billable
ChapterJ00–J99
Ranksubcategory
Official Description

Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 10: Diseases of the Respiratory System (J00-J99).

Instructional Notes

Includes
  • Interstitial pneumonia (nonspecific) (usual) due to collagen vascular disease
  • Interstitial pneumonia (nonspecific) (usual) in diseases classified elsewhere
  • Organizing pneumonia due to collagen vascular disease
  • Organizing pneumonia in diseases classified elsewhere
Code First
  • underlying disease, such as:
  • progressive systemic sclerosis (M34.0)
  • rheumatoid arthritis (M05.00-M06.9)
  • systemic lupus erythematosis (M32.0-M32.9)
General instructions are available for the parent sections:
View CH10 NotesView J84 NotesView J84.1 Notes

Clinical Hierarchy

CH10Diseases of the respiratory system (J00-J99)
J80-J84Other respiratory diseases principally affecting the interstitium (J80-J84)
J84Other interstitial pulmonary diseases
J84.1Other interstitial pulmonary diseases with fibrosis
J84.17Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere
J84.178Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to J84.178:

subcategoryJ84.1
Other interstitial pulmonary diseases with fibrosis
View context instructions
categoryJ84
Other interstitial pulmonary diseases
View context instructions
chapterCH10
Diseases of the respiratory system (J00-J99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to J84.178. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

12 raw paths
Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)12 unique routes
interstitial(9 variants)
due to(2 variants)
collagen vascular disease→J84.178
known underlying cause→J84.178
in disease classified elsewhere→J84.178
lymphocytic (due to collagen vascular disease) (in diseases classified elsewhere)→J84.178
non-specific(3 variants)
due to(2 variants)
collagen vascular disease→J84.178
known underlying cause→J84.178
in diseases classified elsewhere→J84.178
usual(2 variants)
due to collagen vascular disease→J84.178
in diseases classified elsewhere→J84.178
organizing(3 variants)
due to(2 variants)
collagen vascular disease→J84.178
known underlying cause→J84.178
in diseases classified elsewhere→J84.178

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 196
Interstitial Lung Disease with MCC
DRG 197
Interstitial Lung Disease with CC
DRG 198
Interstitial Lung Disease without CC/MCC

Cross Reference

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