2027 ICD-10-CM Diagnosis Code J84Other interstitial pulmonary diseases

ICD-10-CM Codes›J00–J99›J80-J84›J84

ICD-10-CM J84
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

J84 is a non-billable ICD-10-CM category code for other interstitial pulmonary diseases, so it cannot be submitted on claims. Use a more specific code from this category instead, such as J84.01, J84.02, J84.03, and J84.09.

Code Identity

ICD-10-CM Code
J84
Billable Status
No — Non-Billable Category
Code Describes
Other interstitial pulmonary diseases
Short Description
Other interstitial pulmonary diseases
Same as the full description in the CMS dataset.
Chapter
J80-J84
Other respiratory diseases principally affecting the interstitium

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ80-J84Other respiratory diseases principally affecting the interstitium
CategoryJ84Other interstitial pulmonary diseases
This CodeJ84Other interstitial pulmonary diseases

Specific Coding for Other interstitial pulmonary diseasesOverview

Non-specific codes like J84 require more characters. Use one of these billable codes instead:

  • J84.0 for Alveolar and parieto-alveolar conditions

  • Use J84.01 for Alveolar proteinosis

  • Use J84.02 for Pulmonary alveolar microlithiasis

  • Use J84.03 for Idiopathic pulmonary hemosiderosis

  • Use J84.09 for Other alveolar and parieto-alveolar conditions

  • J84.1 for Other interstitial pulmonary diseases with fibrosis

  • Use J84.10 for Pulmonary fibrosis, unspecified

  • J84.11 for Idiopathic interstitial pneumonia

  • J84.17 for Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere

  • Use J84.2 for Lymphoid interstitial pneumonia

  • J84.8 for Other specified interstitial pulmonary diseases

  • Use J84.81 for Lymphangioleiomyomatosis

  • Use J84.82 for Adult pulmonary Langerhans cell histiocytosis

  • Use J84.83 for Surfactant mutations of the lung

  • J84.84 for Other interstitial lung diseases of childhood

  • Use J84.89 for Other specified interstitial pulmonary diseases

  • Use J84.9 for Interstitial pulmonary disease, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to J84: its own notes plus those printed at Chapter 10. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

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

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On J84 itself
  • lung diseases due to external agents (J60-J70)
From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • code, where applicable, to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

  • if applicable, associated condition

Notes

General instructions on how these codes are used.

From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name J84, its category, or a range that includes it.

Code Also 1

These codes say J84 may also be needed to fully describe the condition. The note gives no sequencing direction.

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

Patient EducationClinical

Interstitial Lung Diseases

Interstitial lung disease is the name for a large group of diseases that inflame or scar the lungs. The inflammation and scarring make it hard to get enough oxygen. The scarring is called pulmonary fibrosis.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About J84Overview

What is the ICD-10 code for other interstitial pulmonary diseases?

J84 is the ICD-10-CM category for other interstitial pulmonary diseases, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is J84 (Other interstitial pulmonary diseases) a billable code?

No. This is a category header that groups the codes for other interstitial pulmonary diseases, and headers cannot be submitted on claims. Claims for other interstitial pulmonary diseases need a more specific code from this category, such as J84.01, J84.02, and J84.03.

Can J84 be reported with J98.2?

Not as a rule. The Excludes1 note on J84 lists "interstitial emphysema (J98.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).