CB24 Chylous effusion
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01
A chylous effusion (chylothorax) is defined by the presence of chyle in the pleural space resulting from obstruction or disruption of the thoracic duct or one of its major tributaries. A triglyceride concentration > 110 mg/dL is virtually diagnostic, but the presence of chylomicrons confirms the diagnosis. However, a chylothorax defined by these criteria represents a heterogeneous group of clinical entities. The presence of chylomicrons or triglyceride levels > 110 mg/dL in a pleural effusion should be considered evidence of chyle leakage of indeterminate clinical significance. Many cases of a chylous effusion may be associated with other causes of pleural fluid formation.
postcoordination
Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
synonyms
- Chylous effusion
- chylothorax
- pleurisy with chylous effusion
- Cholesterol pleural effusion
- cholesterol effusion
- cholesterol pleurisy
- chyliform effusion
- pseudochylothorax
- pseudochylous effusion
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