For example, 転 移 (metastasis) can be associated with 転移性腫瘍 (C80, Malignant neoplasm, without specification of site), and also 止血困難 (difficulty in hemostasis) can be associated with 出血 (R58, Haemorrhage, not elsewhere classified).
the coders tried queries that are created by omitting modifiers in the name.