Final 2018 ICD-10 codes contain dozens of new, deleted codes not yet previewed

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

Article Overview

This article summarizes broad changes in the final 2018 ICD-10-CM code set posted by CMS, with emphasis on newly added diagnosis codes, deleted codes, and revised reporting guidance across several clinical areas. It is aimed at coding professionals who need to understand what changed in the annual update and which subject areas were most affected. The article also touches on how the final update differs from the earlier proposed version and notes several categories of diagnosis coding guidance that were expanded or removed.

Why This Topic Matters

Annual ICD-10-CM updates can affect diagnosis reporting, documentation review, and code-set maintenance. This article helps readers identify where the final 2018 changes were concentrated so they can review impacted categories before implementation.

Article Sections

  1. Overview of final 2018 ICD-10-CM changes

    Summarizes the scope of the final update and how it differs from the earlier proposed version. Covers the overall mix of new, deleted, and revised diagnosis codes.

  2. Substance abuse remission coding

    Discusses updates related to remission status reporting for substance use diagnoses and the associated coding guidance. Mentions alignment with broader diagnostic classification terminology.

  3. Cardiovascular code updates

    Reviews changes affecting myocardial infarction and heart failure categories. Includes multiple new reporting options and related note changes within the cardiovascular chapter.

  4. Antenatal screening and genetic counseling

    Covers expanded reporting options for pregnancy-related screening and a change affecting genetic counseling visits. Focuses on diagnosis code additions in these subject areas.

  5. Deleted codes in the final update

    Highlights categories where codes were removed from the final set after appearing in the proposed version. Includes deletions affecting injury-related and musculoskeletal categories.

What You Will Learn

  • Which broad diagnosis categories were changed in the final 2018 ICD-10-CM update
  • How the final update differs from the proposed version
  • Which types of clinical reporting areas received new or deleted diagnosis codes
  • Which sections of the code set were notably affected by the annual update

Who Should Read This

  • Medical coders
  • Coding auditors
  • Revenue cycle staff
  • Clinical documentation specialists
  • Health information management professionals

Codes Discussed

Code Ranges Discussed

  • ICD-10-CM: I21.0-I21.4

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