Addition of April 1st Maintenance of ICD-10-CM and ICD-10-PCS Coding Systems

In the fiscal year 2022 Hospital Inpatient Prospective Payment System final rule published on August 2, 2021, the Centers for Medicare & Medicaid Services (CMS) announced it is adopting an April 1 implementation date for ICD-10-CM and ICD-10-PCS code updates, in addition to the annual October 1 update, beginning with April 1, 2022. This April 1 code update would be in addition to the existing April 1 update under section 1886(d)(5)(k)(vii) of the Act for diagnosis or procedure code revisions needed to describe new technologies and medical services for purposes of the new technology add-on payment process. The April...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article covers CMS’s change to the ICD-10 code maintenance schedule, including an added April 1 implementation cycle for ICD-10-CM and ICD-10-PCS updates. It explains the general purpose of the change, the phased rollout approach, and the ongoing committee-based maintenance process used for future updates. The article is relevant to coding professionals, compliance staff, health information management teams, and anyone tracking ICD-10 update timing and policy changes.

Why This Topic Matters

Changes to the ICD-10 maintenance calendar affect when new diagnosis and procedure updates become available for reporting, claims processing, data analysis, and related operational workflows. Understanding the revised timing helps organizations plan for coding updates and stay aligned with CMS guidance.

What You Will Learn

  • How CMS changed the ICD-10-CM and ICD-10-PCS update schedule
  • What the added April 1 implementation cycle means at a high level
  • How the maintenance process continues through committee review and public comment
  • When future finalized updates are expected to be announced

Who Should Read This

  • Medical coders
  • Coding supervisors
  • Health information management professionals
  • Compliance teams
  • Revenue cycle staff
  • Healthcare administrators
  • Clinical documentation improvement staff

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