CMS also released Medicare Severity Diagnosis-Related Group (MS-DRG) V39.1

The Centers for Disease Control and Prevention (CDC) released its April 1, 2022 diagnosis files on Dec. 23, 2021. The updated files include a Tabular Addendum, Index Addendum, Official Coding and Reporting Guidelines update, ICD-10-CM Order File, and List of Codes and Descriptions. The Tabular Addendum and Index Addendum include minor updates to the classification, in addition to the new diagnosis codes.

The April 1 new diagnosis codes include:

  • Z28.310 – Unvaccinated for COVID-19;
  • Z28.311 – Partially vaccinated for COVID-19; and
  • Z28.39 – Other under-immunized status.

These codes have coding instructions. There is a note for the codes in subcategory Z28.31, which notes that “these codes should not be used for individuals who are not eligible for the COVID-19 vaccines, as determined by the healthcare provider.” The inclusion terms for Z28.39 include delinquent immunization status and lapsed immunization schedule status.

None of the new ICD-10-CM codes are designated as major complication/condition (MCC) or complication/condition (CC) status. These codes will become effective April 1, 2022, along with the previously released seven ICD-10-PCS codes.

In addition to the diagnosis codes released, the Centers for Medicare & Medicaid Services (CMS) also released Medicare Severity Diagnosis-Related Group (MS-DRG) V39.1, which also becomes effective April 1, 2022. The grouper update was created to include the new diagnosis and procedure codes.

There is also an update to the Medicare Code Editor (MCE). A new edit for unspecified laterality has been created as well. The diagnosis codes that trigger the new MCE are listed in the FY22 Inpatient Prospective Payment System (IPPS) Final Rule, Table 6P.3a.

There were also updates to the National Coverage Determination for Artificial Heart and Related Devices, with three procedure codes being removed from the Noncovered Procedure List and Limited Coverage Procedure List. These procedures are the following:

  • 02RK0JZ (Replacement of right ventricle with synthetic substitute, open approach);
  • 02RL0JZ (Replacement of left ventricle with synthetic substitute, open approach); and
  • 02WA0JZ (Revision of synthetic substitute in heart, open approach).

The National Coverage Determination for Ventricular Assist Devices was also updated, with the removal of these procedure codes from the Noncovered Procedure List:

  • 02WA3QZ (Revision of implantable heart assist system in heart, percutaneous approach); and
  • 02WA4QZ (Revision of implantable heart assist system in heart, percutaneous endoscopic approach).

These two codes were removed from the Limited Coverage Procedure List for the Ventricular Assist Devices as well:

  • 02HA0QZ (Insertion of implantable heart assist system into heart, open approach); and
  • 02WA0QZ (Revision of implantable heart assist system in heart, open approach).

In addition to the grouper update, CMS has also publicized the process to request new procedure codes and MS-DRG changes. Currently, dedicated mailboxes are used to request changes.

At the Coordination and Maintenance Committee meeting in March 2022, the Medicare Electronic Application Request Information System (MEARIS), which is an electronic application system, will be introduced. This system will have a soft launch in January 2022. CMS also plans to have a discussion regarding the new system in the FY23 rulemaking process.

Programming Note:

Listen to Laurie Johnson and her coding report every Tuesday on Talk Ten Tuesdays, 10 Eastern.

Facebook
Twitter
LinkedIn

Laurie M. Johnson, MS, RHIA, FAHIMA, AHIMA Approved ICD-10-CM/PCS Trainer

Laurie Johnson is currently a senior healthcare consultant for Revenue Cycle Solutions, based in Pittsburgh, Pa. Laurie is an AHIMA-approved ICD-10-CM/PCS trainer. She has more than 35 years of experience in health information management and specializes in coding and related functions. She has been a featured speaker in over 40 conferences. Laurie is a member of the ICD10monitor editorial board and is a permanent panelist on Talk Ten Tuesdays

Related Stories

Leave a Reply

Please log in to your account to comment on this article.

Featured Webcasts

Mastering OB GYN Coding Accuracy: Precision Coding for Compliance and Reimbursement

Gain clarity and confidence in OB‑GYN coding with this expert‑led webcast featuring Stacey Shillito, CDIP, CPMA, CCS, CCS‑P, CPEDC, COPC. You’ll learn how to apply global maternity package rules accurately, select the right CPT codes for procedures and visits, and identify documentation gaps that lead to denials. With practical guidance and real examples, this session helps you strengthen compliance, reduce audit risk, and ensure accurate reimbursement for women’s health services.

May 14, 2026

2026 ICD-10-CM/PCS Coding Clinic Update Webcast Series

Uncover essential coding insights with nationally recognized coding authority Kay Piper, RHIA, CDIP, CCS. Through ICD10monitor’s interactive, on‑demand webcast series, Kay walks you through the AHA’s 2026 ICD‑10‑CM/PCS Quarterly Coding Clinics, translating each update into practical, easy‑to‑apply guidance designed to sharpen precision, ensure compliance, and strengthen day‑to‑day decision‑making. Available shortly after each official release.

April 13, 2026

2026 ICD-10-CM/PCS Coding Clinic Update: Fourth Quarter

Uncover critical guidance on the ICD-10-CM/PCS code updates. Kay Piper reviews and explains ICD-10-CM/PCS coding guidelines in the AHA’s fourth quarter 2026 ICD-10-CM/PCS Coding Clinic in an easy to access on-demand webcast.

December 14, 2026

2026 ICD-10-CM/PCS Coding Clinic Update: Third Quarter

Uncover critical guidance on the ICD-10-CM/PCS code updates. Kay Piper reviews and explains ICD-10-CM/PCS coding guidelines in the AHA’s third quarter 2026 ICD-10-CM/PCS Coding Clinic in an easy to access on-demand webcast.

October 12, 2026

Trending News

Featured Webcasts

Compliance for the Inpatient Psychiatric Facility (IPF-PPS): Minimizing Federal Audit Findings by Strengthening Best Practices

Federal auditors are intensifying their focus on inpatient psychiatric facilities, using advanced data analytics to spotlight outliers and pursue high‑dollar repayments. In this high‑impact webcast, Michael Calahan, PA, MBA, Compliance Officer and V.P., Hospital & Physician Compliance, breaks down what regulators are really targeting in IPF-PPS admissions, documentation, treatment and discharge planning. Attendees will learn practical steps to tighten processes, avoid common audit triggers and protect reimbursement and reduce the risk of multimillion-dollar repayment demands.

April 9, 2026

Mastering MDM for Accurate Professional Fee Coding

In this timely session, Stacey Shillito, CDIP, CPMA, CCS, CCS-P, CPEDC, COPC, breaks down the complexities of Medical Decision Making (MDM) documentation so providers can confidently capture the true complexity of their care. Attendees will learn practical, efficient strategies to ensure documentation aligns with current E/M guidelines, supports accurate coding, and reduces audit risk, all without adding to charting time.

March 31, 2026

The PEPPER Returns – Risk and Opportunity at Your Fingertips

Join Ronald Hirsch, MD, FACP, CHCQM for The PEPPER Returns – Risk and Opportunity at Your Fingertips, a practical webcast that demystifies the PEPPER and shows you how to turn complex claims data into actionable insights. Dr. Hirsch will explain how to interpret key measures, identify compliance risks, uncover missed revenue opportunities, and understand new updates in the PEPPER, all to help your organization stay ahead of audits and use this powerful data proactively.

March 19, 2026

Top 10 Audit Targets for 2026-2027 for Hospitals & Physicians: Protect Your Revenue

Stay ahead of the 2026-2027 audit surge with “Top 10 Audit Targets for 2026-2027 for Hospitals & Physicians: Protect Your Revenue,” a high-impact webcast led by Michael Calahan, PA, MBA. This concise session gives hospitals and physicians clear insight into the most likely federal audit targets, such as E/M services, split/shared and critical care, observation and admissions, device credits, and Two-Midnight Rule changes, and shows how to tighten documentation, coding, and internal processes to reduce denials, recoupments, and penalties. Attendees walk away with practical best practices to protect revenue, strengthen compliance, and better prepare their teams for inevitable audits.

January 29, 2026

Trending News

Prepare for the 2025 CMS IPPS Final Rule with ICD10monitor’s IPPSPalooza! Click HERE to learn more

Get 15% OFF on all educational webcasts at ICD10monitor with code JULYFOURTH24 until July 4, 2024—start learning today!

BLOOM INTO SAVINGS! Get 25% OFF during our spring sale through March 27. Use code SPRING26 at checkout to claim this offer.

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 1 with code CYBER25

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 2 with code CYBER24