What my diagnosis means
How doctors name ILD types, and why the exact label can take time to settle.
Why this matters
The main things to know
- Diagnosing ILD often takes several tests and more than one specialist.
- It is common — and okay — for a diagnosis to start as “not yet certain.”
- Knowing your type helps you and your team plan next steps together.
Want a quick plain-language summary of this page?
Doctors usually diagnose ILD by putting several pieces together: your history and exposures, a detailed CT scan of your chest, breathing tests, blood tests, and sometimes a sample of lung tissue. Often a team of specialists (a pulmonologist, a radiologist, and a pathologist) discusses the case together. This is called a multidisciplinary discussion.
Why the name can change
Early on, your diagnosis may be described as “unclassifiable” or “most consistent with” a type. This does not mean your team is unsure how to help you — it means they are being careful and precise. As tests come back, the picture usually becomes clearer.
- Ask your team which type of ILD they think you have, and how confident they are.
- Ask what additional information, if any, would make the picture clearer.
Your safe next step
Every page ends with one small, safe action — no pressure.
Reviewed by Dr. Youmna Abdelghany, MD
Pulmonary Disease & Critical Care Medicine
- Last reviewed:
- May 20, 2026
- Next review:
- May 20, 2027
- Reading level:
- Grade 6–8
Sources (3)
- Patient education series — American Thoracic Society (opens a new site)
- Pulmonary fibrosis resources — Pulmonary Fibrosis Foundation (opens a new site)
- Interstitial lung diseases — NHLBI (NIH) (opens a new site)