2007 ICD-9-CM Procedure 90.1 Microscopic examination of specimen from endocrine gland, not elsewhere classified 90.1 is a non-specific code that should not be used to specify a procedure 90.1 contains 7 index entries View the full Volume 3 90.* hierarchy Index entries containing 90.1: Examination (for) microscopic (specimen) (of) 91.9 adrenal gland 90.1 endocrine gland NEC 90.1 parathyroid gland 90.1 pineal gland 90.1 pituitary gland 90.1 thymus 90.1 thyroid gland 90.1