J98.11 — Atelectasis
J98.11

What this code means
Atelectasis is partial collapse of lung tissue, often after surgery or from a blocked airway, usually temporary.
Also called: atelectasis, collapsed lung segment.
When this code is used
Used for atelectasis.
Where it sits in ICD-10-CM
Code J98.11 belongs to Chapter 10: Diseases of the respiratory system, which covers codes J00–J99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Related symptoms
Related anatomy
Frequently asked questions
What is ICD-10-CM code J98.11?
J98.11 is the ICD-10-CM diagnosis code for “Atelectasis”. Atelectasis is partial collapse of lung tissue, often after surgery or from a blocked airway, usually temporary.
When is code J98.11 used?
Used for atelectasis. It belongs to Chapter 10 of ICD-10-CM (Diseases of the respiratory system).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.