ICD-10-CM Code Z85.850

Personal history of malignant neoplasm of thyroid

Version 2020 Billable Code Unacceptable Principal Diagnosis POA Exempt

Valid for Submission

Z85.850 is a billable code used to specify a medical diagnosis of personal history of malignant neoplasm of thyroid. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Z85.850 might also be used to specify conditions or terms like h/o: carcinoma, h/o: carcinoma, h/o: thyroid disorder, history of follicular adenocarcinoma of thyroid, history of malignant neoplasm of endocrine gland, history of malignant neoplasm of neck, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

The code Z85.850 describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

ICD-10:Z85.850
Short Description:Personal history of malignant neoplasm of thyroid
Long Description:Personal history of malignant neoplasm of thyroid

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Z85.850 are found in the index:


Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Unacceptable principal diagnosis - There are selected codes that describe a circumstance which influences an individual’s health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • H/O: carcinoma
  • H/O: carcinoma
  • H/O: thyroid disorder
  • History of follicular adenocarcinoma of thyroid
  • History of malignant neoplasm of endocrine gland
  • History of malignant neoplasm of neck
  • History of malignant neoplasm of thyroid
  • History of medullary carcinoma of thyroid
  • History of papillary adenocarcinoma of thyroid

Diagnostic Related Groups

The ICD-10 code Z85.850 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.

  • 826 - MYELOPROLIFERATIVE DISORDERS OR POORLY DIFFERENTIATED NEOPLASMS WITH MAJOR O.R. PROCEDURE WITH MCC
  • 827 - MYELOPROLIFERATIVE DISORDERS OR POORLY DIFFERENTIATED NEOPLASMS WITH MAJOR O.R. PROCEDURE WITH CC
  • 828 - MYELOPROLIFERATIVE DISORDERS OR POORLY DIFFERENTIATED NEOPLASMS WITH MAJOR O.R. PROCEDURE WITHOUT CC/MCC

Present on Admission (POA)

Z85.850 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here .

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Z85.850 to ICD-9

  • V10.87 - Hx of thyroid malignancy

Code Classification

  • Factors influencing health status and contact with health services (Z00–Z99)
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
      • Personal history of malignant neoplasm (Z85)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Thyroid Cancer

Your thyroid is a butterfly-shaped gland in your neck, just above your collarbone. It makes hormones that help the body work normally. There are several types of cancer of the thyroid gland. You are at greater risk if you

  • Are between ages 25 and 65
  • Are a woman
  • Are Asian
  • Have a family member who has had thyroid disease
  • Have had radiation treatments to your head or neck

You should see a doctor if you have a lump or swelling in your neck. Doctors use a physical exam, thyroid tests, other blood and imaging tests, and a biopsy to diagnose thyroid cancer. Treatment depends on the type of cancer you have and how far the cancer has spread. Many patients receive a combination of treatments. They may include surgery, radioactive iodine, hormone treatment, radiation therapy, chemotherapy, or targeted therapy. Targeted therapy uses substances that attack cancer cells without harming normal cells.

NIH: National Cancer Institute


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