ICD-10-CM 2027
ICD-10 code for atelectasis
From the official ICD-10-CM alphabetic index entry “Atelectasis (massive) (partial) (pressure) (pulmonary)”. Page updated September 29, 2026.
About coding atelectasis
The ICD-10-CM code for atelectasis is J98.11 (Atelectasis). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on J98.11.
Within J98.1 (pulmonary collapse), J98.11 is specifically for atelectasis. Related codes cover other pulmonary collapse (J98.19).
Don't report J98.11 together with the conditions in its Excludes1 note: newborn atelectasis and tuberculous atelectasis (current disease) (A15).
Use an additional code 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.-) and 1 more.
More specific atelectasis codes (official index)
- newborn P28.10 — Unspecified atelectasis of newborn
- due to resorption P28.11 — Resorption atelectasis without respiratory distress syndrome
- partial P28.19 — Other atelectasis of newborn
- primary P28.0 — Primary atelectasis of newborn
- secondary P28.19 — Other atelectasis of newborn
- primary (newborn) P28.0 — Primary atelectasis of newborn
- tuberculous
Don't confuse with (Excludes1 for J98.11)
- newborn atelectasis
- tuberculous atelectasis (current disease) (A15)
Common questions about atelectasis ICD-10 codes
What is the ICD-10 code for atelectasis?
- J98.11 — Atelectasis. More specific codes apply when the documentation supports them: P28.10, P28.11, P28.19, P28.0 and others below.
What is the ICD-10 code for newborn atelectasis?
- P28.10 — Unspecified atelectasis of newborn.
What is the ICD-10 code for primary atelectasis?
- P28.0 — Primary atelectasis of newborn.
Is J98.11 billable?
- Yes. J98.11 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J98.11 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J98.11 as a principal diagnosis.
Is J98.11 a CC or MCC?
- J98.11 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.