2007 ICD-9-CM Procedure 90.6 Microscopic examination of specimen from spleen and of bone marrow 90.6 is a non-specific code that should not be used to specify a procedure 90.6 contains 2 index entries View the full Volume 3 90.* hierarchy Index entries containing 90.6: Examination (for) microscopic (specimen) (of) 91.9 bone 91.5 marrow 90.6 spleen 90.6