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 2026, 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
The ICD-10 code E32 covers various diseases of the thymus gland, including specific conditions such as persistent hyperplasia, abscess, and other thymus-related disorders. This section is vital for coding rare but distinct thymus gland diseases.
These codes serve to classify medical diagnoses related to the thymus, a small gland important for immune function. For example, E32.0 is used when documenting persistent hyperplasia of the thymus, also known as thymus hypertrophy. If a patient has an abscess of the thymus, the E32.1 code is appropriate. Other unusual thymus conditions like atrophy, cysts, hematomas, or hemorrhages fall under E32.8. When the exact thymus disease isn’t specified, E32.9 is used for general thymus gland disorders. Understanding these codes helps medical coders accurately identify the ICD-10 code for thymus-related conditions, supporting precise clinical documentation and billing.
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, 2025 through September 30, 2026. 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 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
