ICD-10 Guide

Z85.850

Name: ICD-10-CM Medical Diagnosis Codes
Creator: Centers for Medicare & Medicaid Services
License: https://www.cms.gov/medicare/coding/icd10

Personal history of malignant neoplasm of thyroid

BILLABLE STATUSYes

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED08/26/2025

Code Description

ICD-10 Z85.850 is a billable code used to indicate a diagnosis of personal history of malignant neoplasm of thyroid.

Key Diagnostic Point:

Personal history of malignant neoplasm of thyroid