J84.112

Billable

ChapterJ00–J99

Ranksubcategory

Official Description

Idiopathic pulmonary fibrosis

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

Cryptogenic fibrosing alveolitis
Idiopathic fibrosing alveolitis

General instructions are available for the parent sections:

View CH10 Notes View J84 Notes View J84.1 Notes View J84.11 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

J84.11Idiopathic interstitial pneumonia

J84.112Idiopathic pulmonary fibrosis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to J84.112:

subcategoryJ84.11

Idiopathic interstitial pneumonia

View context instructions

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 J84.112. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

5 raw paths

Alveolitis1 unique routes

fibrosing (cryptogenic) (idiopathic)→J84.112

Fibrosis, fibrotic2 unique routes

lung (atrophic) (chronic) (confluent) (massive) (perialveolar) (peribronchial)

idiopathic→J84.112

pulmonary

idiopathic→J84.112

Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)2 unique routes

interstitial(2 variants)

usual→J84.112(2 variants)

idiopathic→J84.112

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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