The FY21 ICD-10-CM codes were released by the Center for Disease Control and Prevention (CDC) on July 1, 2020.  The new and updated diagnosis codes are another part of the preparation for FY21 which begins on October 1, 2020.

The final codes were very similar to the diagnosis codes that were released earlier this year. There are 490 new codes. Included in these diagnosis changes are:

  • Expansion of tick-borne diseases
  • Additional sickle-cell and Hb-SS disease and complications
  • Babesiosis
  • Cytokine Release Syndrome – grades 1 – 5 and unspecified
  • Diseases of glucose transport
  • Alcohol and various drug abuse or use with withdrawal
  • Expansion of cerebellar ataxia
  • Cerebrospinal fluid leak
  • Different types of hereditary corneal dystrophies
  • Additions to eosinophilic pneumonia
  • Esophagitis with and without bleeding
  • Addition of “Other Specified Site” throughout arthritis and osteoporosis
  • Chronic Kidney Disease – 3a, 3b, and unspecified
  • Neonatal cerebral infarction with laterality
  • Injuries to thorax including front and back wall
  • Complications of corneal transplant including rejection, failure, and infection
  • Transportation accidents with electric scooter

With the new diagnosis codes, there have been numerous updates to spelling and punctuation in the Index and Tabular.

The updates to the ICD-10-CM Official Coding and Reporting Guidelines were also released. Many of the changes to the guidelines include the coding of COVID-19. The updates related to coronavirus also impact Pregnancy and Newborn guidelines.  The narrative changes are in bold text and the underlines indicate items that were moved within the guidelines. Other changes include the incorporation of the previously released guideline on vaping-related disorders. The guideline I.B.14 has been updated to address additional information that has been relayed by the patient for social determinants of health.   The updated guideline states that patient-reported information may be used for social determinants of health if the provider signs the documentation.

The release of the diagnosis and inpatient procedure codes is not the complete picture for preparation for FY21. The Inpatient Prospective Payment System Final Rule for FY21 finishes the picture. The final rule includes updates to the comorbid/complication status (CC and MCC), changes to the operating room code status, a revision to the Medicare Code Editor (MCEs), and New Technology Add-On Payment (NTAP) items.

In preparation for the final rule, get familiar with the new diagnosis and procedure codes, and understand how and if they impact your facility coding. Research where the documentation is found in the electronic medical record. Review the new codes to determine if they impact the clinical documentation query templates. The templates can be updated to be effective on October 1, 2020. Another preparation task is to update the facility-specific coding guidelines. The update will not be final until the changes to the New Technology items have been identified. This is the first education on the new codes for the coders and clinical documentation specialists.

Preparation for the new fiscal year is more than the new diagnosis and procedure codes. It includes understanding the MS-DRG changes and operational impacts.

Resources:

https://www.cms.gov/Medicare/Coding/ICD10/Downloads/2020-Coding-Guidelines.pdf

https://www.cdc.gov/nchs/icd/icd10cm.htm

 

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

AI, Audits, and the Future of the Revenue Cycle

Artificial intelligence is rapidly transforming healthcare revenue cycle operations, from coding and auditing to compliance and denials. Join industry leaders Pam Warren (MaineHealth) and Raemarie Jimenez (AAPC) for a live fireside chat exploring how AI is changing workflows, workforce roles, payer-provider dynamics, and compliance risk—and what organizations should be doing now to prepare.

June 17, 2026

Trending News

Featured Webcasts

Ask Dr. Hirsch: Clarifying Medicare’s Most Misunderstood Rules – Part 2

Medicare regulations are complex and even seasoned professionals struggle to apply them consistently. Due to overwhelming demand, Dr. Hirsch returns for Part 2 of Ask Dr. Hirsch: Clarifying Medicare’s Most Misunderstood Rules to answer even more of Medicare’s most misunderstood questions, covering inpatient status, observation, SNF access, Medicare Advantage denials, and more. Join Dr. Hirsch as he provides clear, referenced answers to real-world questions submitted by your peers, helping you navigate Medicare compliance with confidence and clarity.

June 18, 2026

Reengineering Utilization Management: Building an Adaptive Model for the New Payer Era

Traditional utilization management models can no longer keep pace with regulatory shifts, payer scrutiny, and operational pressures. In this webcast, Tiffany Ferguson, LMSW, CMAC, ACM, ACPA-C, introduces an Adaptive Model strategy that modernizes UM through role specialization, technology-driven workflows, and proactive, team-based processes. Attendees will learn how to restructure programs to improve efficiency, strengthen clinical collaboration, and enhance financial performance in a rapidly changing healthcare environment.

May 20, 2026

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

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!

This Memorial Day, we honor those who gave all for our freedom. Take 20% off sitewide through May 29 with code MEMORIAL26 at checkout

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