That article is an awful lot of FUD. Feel bad for reading a website that tries so hard to scare you with mumbo-jumbo.

There are ICD10 codes for literally every reason anyone could ever go to the doctor. Consider the code a replacement for some geriatric physician's illegible scrawl on a paper health care record. This is not being used for control. Don't believe me? Consider how many fats and smokers exist completely uncontrolled by anyone.

https://www.cms.gov/files/document/fy-2022-icd-10-cm-coding-guidelines-updated-02012022.pdf

ICD-10-CM Official Guidelines for Coding and Reporting, FY 2022

Section I. Conventions, general coding guidelines and chapter specific guidelines

The conventions, general guidelines and chapter-specific guidelines are applicable to all health care settings unless otherwise indicated. The conventions and instructions of the classification take precedence over guidelines.

 C. Chapter-Specific Coding Guidelines In addition to general coding guidelines, there are guidelines for specific diagnoses and/or conditions in the classification. Unless otherwise indicated, these guidelines apply to all health care settings. Please refer to Section II for guidelines on the selection of principal diagnosis

  1. Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99), U07.1, U09.9

   a. Human Immunodeficiency Virus (HIV) Infections

   b. Infectious agents as the cause of diseases classified to other chapters

   c. Infections resistant to antibiotics

   d. Sepsis, Severe Sepsis, and Septic Shock Infections resistant to antibiotics

   e. Methicillin Resistant Staphylococcus aureus (MRSA) Conditions

   f. Zika virus infections

   g. Coronavirus infections

    1) COVID-19 infection (infection due to SARS-CoV-2)

     (n) Underimmunization for COVID-19 Status

      Code Z18.310, Unvaccinated for COVID-19, may be assigned when the patient has not received at least one dose of any COVID-19 vaccine. Code Z28.311, Partially vaccinated for COVID-19, may be assigned when the patient has received at least one dose of a multi-dose COVID-19 vaccine regimen, but has not received the full set of doses necessary to meet the Centers for Disease Control and Prevention (CDC) definition of “fully vaccinated” in place at the time of the encounter.

This code is for information purposes. With EXACTLY as much evidence as the hyperventilating author of your FUD article, I claim it will be used to study the virtues of being pureblood and the lessons will be learned and we will never have another Operation Warp Speed and faulty vaccines rolled out without proper testing EVER AGAIN. THIS will save lives. Also this code will be used to build a criminal case against the people who made the jabs and big pharma is finally going to stand in court and they will be hanged by the neck until dead for killing all the jabbyboosties.

With EXACTLY as much evidence. That's how shit that article is. Get better sources, OP.