ICD-9-CM

254 Diseases of thymus gland Excludes: aplasia or dysplasia with immunodeficiency (279.2) hypoplasia with immunodeficiency (279.2) myasthenia gravis (358.00-358.01)
254.0: Persistent hyperplasia of thymus Hypertrophy of thymus
254.1: Abscess of thymus
254.8: Other specified diseases of thymus gland Atrophy of thymus Cyst of thymus Excludes: thymoma (212.6)
254.9: Unspecified disease of thymus gland

254 Diseases of thymus gland

Excludes:

aplasia or dysplasia with immunodeficiency (279.2)

hypoplasia with immunodeficiency (279.2)

myasthenia gravis (358.00-358.01)

Hypertrophy of thymus

Atrophy of thymus

Cyst of thymus

Excludes:

thymoma (212.6)

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