Aplastic Anemia

Effective October 1, 2006, the title for category 284, Aplastic anemia, has been revised to “Aplastic anemia and other bone marrow failure syndromes.” Code 284.0, Constitutional aplastic anemia, has been expanded to distinguish between constitutional red blood cell aplasia (284.01) and other constitutional aplastic anemia (284.09). In addition, two new codes have been created to report pancytopenia (284.1) and myelophthisis (284.2). Aplastic anemias involve a diverse group of bone marrow disorders. They may involve not just anemia but pancytopenia. Pancytopenia is a deficiency of all three cellular elements...

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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 explains updates to the ICD-9-CM classification for aplastic anemia and related bone marrow failure syndromes. It is relevant to coding professionals, clinical documentation teams, and auditors who need to understand how the affected diagnostic categories were revised, what related conditions are discussed, and which cross-references and exclusions are included in the update.

Why This Topic Matters

The changes affect how related marrow failure and blood cell deficiency conditions are grouped and reported, which can influence code selection, documentation review, and consistency in claims and records.

Article Sections

  1. ICD-9-CM category revision summary

    Overview of the category-level update and the new structure introduced for related bone marrow failure syndromes.

  2. Clinical background

    General discussion of aplastic anemias and related marrow failure conditions, including broad clinical context for the revision.

  3. Revised code listing and exclusions

    The affected diagnostic category is presented with its revised subcategories, associated cross-references, and exclusion notes.

What You Will Learn

  • What area of the diagnostic classification was revised
  • Which broad condition group was expanded to include related marrow failure syndromes
  • How the update organizes related subcategories and exclusions
  • What kinds of supporting clinical context are discussed in the article

Who Should Read This

  • Medical coders
  • Coding auditors
  • Clinical documentation specialists
  • Revenue cycle professionals
  • Healthcare compliance staff

Codes Discussed

  • ICD-9-CM: 284
  • ICD-9-CM: 284.0
  • ICD-9-CM: 284.01
  • ICD-9-CM: 284.09
  • ICD-9-CM: 284.1
  • ICD-9-CM: 284.2
  • ICD-9-CM: 284.8
  • ICD-9-CM: 284.9
  • ICD-9-CM: 238.72
  • ICD-9-CM: 238.75
  • ICD-9-CM: 238.79
  • ICD-9-CM: 238.76
  • ICD-9-CM: 289.83
  • ICD-9-CM: 174.0
  • ICD-9-CM: 174.9
  • ICD-9-CM: 175.0
  • ICD-9-CM: 175.9
  • ICD-9-CM: 015.0
  • ICD-9-CM: 015.9
  • ICD-9-CM: 042

Code Ranges Discussed

  • ICD-9-CM: 238.72-238.75
  • ICD-9-CM: 174.0-174.9
  • ICD-9-CM: 175.0-175.9
  • ICD-9-CM: 015.0-015.9

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