Diseases of thymus (E32) ICD-10-CM
The E32 code range covers diseases of thymus with 5 ICD-10-CM diagnosis codes. 4 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the E32 Range 5 codes · 4 billable
About the E32 Code Range
These conditions affect the thymus gland, within the broader group of disorders of other endocrine glands.
The subdivisions distinguish persistent thymus overgrowth in E32.0 from an abscess, or pocket of pus, in E32.1. E32.8 identifies other thymus diseases, while E32.9 leaves the disease unspecified.
Questions About This Page
How many billable codes are in the E32 range?
Of the 5 codes in this range, 4 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the E32 range classify?
The range classifies diseases of thymus. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
