ICD10
ICD-10 Code J84.1: Other interstitial pulmonary diseases with fibrosis
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the respiratory system (J00-J99).
When is it used?
- May be used when a clinician documents other interstitial pulmonary diseases with fibrosis in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
10Diseases of the respiratory system (J00-J99)
block
J80-J84Other respiratory diseases principally affecting the interstitium
category
J84Other interstitial pulmonary diseases
currentJ84
Official coding notes
Excludes1 (do not code together)
- pulmonary fibrosis (chronic) following radiation (J70.1)
Code also
- , if applicable, pulmonary fibrosis (chronic) due to inhalation of chemicals, gases, fumes or vapors (J68.4)
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
PulmonologistGeneral Physician
Related codes
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 789574002high
Acute exacerbation of idiopathic pulmonary fibrosis
Source: SNOMED International ICD-10 map
SNOMED_CT 13274008high
Atrophic fibrosis of lung
Source: SNOMED International ICD-10 map
SNOMED_CT 1388606000high
Bronchiolocentric interstitial pneumonia
Source: SNOMED International ICD-10 map
SNOMED_CT 1388633001high
Bronchiolocentric interstitial pneumonia due to connective tissue disease
Source: SNOMED International ICD-10 map
SNOMED_CT 16841131000119100high
Calcified granuloma of lung
Source: SNOMED International ICD-10 map
SNOMED_CT 1163147006high
Chronic fibrosing pulmonary aspergillosis
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
J84.1
Replacement codes
J84.10 — Pulmonary fibrosis, unspecified
Common synonyms
Other interstitial pulmonary diseases with fibrosis
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.