Lymphatic malformations

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Lymphatic malformations (LM), formerly referred to by the term lymphangioma, are malformations of the lymphatic system which result in obstructed lymphatic drainage. There are two types of LM: macrocystic LM (including cystic hygroma/lymphangioma) and tissue-infiltrating microcystic LM (lymphangioma circumscriptum). The macro and microcystic forms of LM may occur in association.

code elsewhere

• Primary lymphoedema  (BD93.0)

sections/codes in this section (LA90.1-LA90.1)

• Macrocystic lymphatic malformation  (LA90.10)
• Microcystic lymphatic malformation  (LA90.11)
• Lymphatic malformations of certain specified sites  (LA90.12)
• Cystic hygroma in fetus  (LA90.13)
• Other specified lymphatic malformations  (LA90.1Y)
• Lymphatic malformations, unspecified  (LA90.1Z)

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