AHA Coding Clinic® for ICD-9 - 2005 Issue 4; VOLUMES 1 AND 2 NEW/REVISED CODES
Thrombocytopenia
Effective October 1, 2005, code 287.3, Primary thrombocytopenia, has been expanded to separately identify the different types of primary thrombocytopenias. The new codes now differentiate between unspecified primary thrombocytopenia (287.30), immune thrombocytopenic purpura (287.31), Evans’ syndrome (287.32), congenital and hereditary thrombocytopenic purpura (287.33), and other primary thrombocytopenia (287.39). Immune thrombocytopenic purpura (ITP): ITP is a disorder of the blood. It is recognized as an autoimmune disorder, with development of antibodies to one’s own platelets. The platelets are then destroyed by phagocytosis, which occurs primarily in the spleen. Some...
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Article Overview
This article covers an ICD-9-CM revision for primary thrombocytopenia, along with background on the major clinical categories discussed in the update. It is useful for coders, compliance staff, and clinical documentation teams who need to understand the scope of the code expansion and the types of thrombocytopenia referenced in the source.
Why This Topic Matters
The article helps readers recognize that a formerly broader diagnosis category was split into more specific ICD-9-CM entries and provides context for distinguishing the related clinical terms discussed in the update.
Article Sections
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Effective October 1, 2005 code update
Introduces the code revision and the overall change in how primary thrombocytopenia is organized in this classification update.
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Immune thrombocytopenic purpura (ITP)
Provides general clinical background on this condition, including its presentation, causes, and treatment considerations.
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Evans’ syndrome
Summarizes the broad clinical relationship between thrombocytopenia and hemolytic anemia discussed in the article.
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Congenital and hereditary thrombocytopenic purpura
Describes inherited forms of low platelet count and notes representative conditions mentioned in the update.
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ICD-9-CM code listing and revision notes
Lists the affected diagnosis categories and the updated primary thrombocytopenia subdivisions referenced by the article.
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Clinical question
Presents a documentation-oriented question tied to the thrombocytopenia update and the related diagnosis category.
What You Will Learn
- The scope of the thrombocytopenia code revision
- The major clinical categories discussed in relation to primary thrombocytopenia
- How the article frames the related ICD-9-CM diagnosis update
- The documentation scenario used to illustrate the topic
Who Should Read This
- Medical coders
- Coding educators
- Compliance staff
- Clinical documentation specialists
- Revenue cycle professionals
Codes Discussed
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