ICD-10-CM 2027
ICD-10 code for thymic asthma
From the official ICD-10-CM alphabetic index entry “Asthma, asthmatic (bronchial) (catarrh) (spasmodic) › thymic”. Page updated September 29, 2026.
About coding thymic asthma
The ICD-10-CM code for thymic asthma is E32.8 (Other diseases of thymus).
Within E32, choose E32.8 (Other diseases of thymus) only when documentation doesn't support a more specific option: persistent hyperplasia of thymus (E32.0), abscess of thymus (E32.1) and disease of thymus, unspecified (E32.9).
Don't report E32.8 together with the conditions in its Excludes1 note: aplasia or hypoplasia with immunodeficiency (D82.1) and thymoma (D15.0).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for E32.8)
Common questions about thymic asthma ICD-10 codes
What is the ICD-10 code for thymic asthma?
- E32.8 — Other diseases of thymus.
Is E32.8 billable?
- Yes. E32.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E32.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E32.8 as a principal diagnosis.
Is E32.8 a CC or MCC?
- No. E32.8 is neither a CC nor an MCC under MS-DRG v44.0.