ICD-10-CM > Z00-Z99 > Z77-Z99 > Z85 > Z85.8 > Z85.85 Z85.85 Personal history of malignant neoplasm of endocrine glands Non-Billable/Non-Specific Applicable To Conditions classifiable to C73-C75 Codes Z85.850Personal history of malignant neoplasm of thyroidZ85.858Personal history of malignant neoplasm of other endocrine glands