ICD-11 classes
11 Diseases of the circulatory system
Disorders of lymphatic vessels or lymph nodes
LA90.1 — Lymphatic malformations
ICD-11 LA90.1 — Lymphatic malformations
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.
The diagnosis includes nothing.
The diagnosis excludes nothing.
Diagnosis with code LA90.1 contains 7 clarifying diagnoses:
- LA90.10 — Macrocystic lymphatic malformation
- LA90.11 — Microcystic lymphatic malformation
- LA90.12 — Lymphatic malformations of certain specified sites
- LA90.13 — Cystic hygroma in fetus
- BD93.0 — Primary lymphoedema
It contains 2 clarifying diagnoses. - LA90.1Y — Other specified lymphatic malformations
- LA90.1Z — Lymphatic malformations, unspecified
The diagnosis is coded elsewhere:
- Structural developmental anomalies of the peripheral vascular system #12160
- Lymphatic malformations #12169
- Malformations involving cutaneous lymphatic vessels #16669
- Lymphatic malformations #16670
- Structural developmental anomalies of the peripheral vascular system #22694
- Lymphatic malformations #22703
The diagnosis is included in 1 another class.
- Primary lymphoedema (BD93.0)