ICD-10-CM
ICD-10 code for Pulmonary fibrosis: J84.10
The CDC title for "Pulmonary fibrosis" is J84.1 (Other interstitial pulmonary diseases with fibrosis), a header that is not billable. When nothing more specific is documented, the billable code is J84.10, Pulmonary fibrosis, unspecified.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under J84.1, then other CDC titles that name pulmonary fibrosis
A header groups codes and is not billed. A billable code is one you can report. Listed second marks a billable manifestation code (its CDC title says it is "classified elsewhere"): code the underlying disease or condition first, then this code.
- J84.1Other interstitial pulmonary diseases with fibrosisHeader
- J84.10Pulmonary fibrosis, unspecifiedBillable
- J84.11Idiopathic interstitial pneumoniaHeader
- J84.111Idiopathic interstitial pneumonia, not otherwise specifiedBillable
- J84.112Idiopathic pulmonary fibrosisBillable
- J84.113Idiopathic non-specific interstitial pneumonitisBillable
- J84.114Acute interstitial pneumonitisBillable
- J84.115Respiratory bronchiolitis interstitial lung diseaseBillable
- J84.116Cryptogenic organizing pneumoniaBillable
- J84.117Desquamative interstitial pneumoniaBillable
- J84.17Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhereHeader
- J84.170Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhereListed second
- J84.178Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhereListed second
Code also
The CDC tabular list says a second code may be needed with this one. The note does not set which is listed first.
From J84.1. A note on a category applies to every code under it.
Code also, if applicable, pulmonary fibrosis (chronic) due to inhalation of chemicals, gases, fumes or vapors (J68.4)
From J84. A note on a category applies to every code under it.
Code also, if applicable, associated condition
Excludes1
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From J84. A note on a category applies to every code under it.
Related conditions
Related pages
- J84.10 code detailsNotes, nearby codes, CMS-HCC group
- Category J84.1Every code under it
- Chapter 10Diseases of the respiratory system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Pulmonary fibrosis?
The CDC title for "Pulmonary fibrosis" is J84.1 (Other interstitial pulmonary diseases with fibrosis), a header that is not billable. When nothing more specific is documented, the billable code is J84.10, Pulmonary fibrosis, unspecified.
Is J84.10 billable?
Yes. J84.10 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to J84.10?
The CDC tabular list gives 3 Excludes1 notes (not coded together), 1 Excludes2 note (may be coded together when both are documented) for J84.10 and the categories above it. They are listed on this page.
What chapter is J84.10 in?
Chapter 10. Diseases of the respiratory system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.