AHA Coding Clinic® for ICD-9 - 1991 Fourth Quarter; New/Revised Codes
Kaposi's Sarcoma
While Kaposi's sarcoma most commonly affects the skin, improved diagnostic capability and the increasing number of patients with AIDS have resulted in diagnoses of Kaposi's sarcoma of other sites; such as the palate, lung, and gastrointestinal tract. The only code provided by ICD-9-CM has been for malignancy of the skin, which has not permitted effective collection of data on the occurrence of this particular neoplasm. Effective October 1, 1991, Kaposi's sarcoma is classified to category 176, rather than category 173, with the site indicated by the fourth digit. Kaposi's sarcoma of the skin is coded to 176.0, regardless...
Subscribe or sign in to view the full article.
Article Overview
This article covers the ICD-9-CM classification of Kaposi’s sarcoma and explains how the diagnosis is organized by site in category 176 rather than category 173. It is intended for coding professionals, clinical documentation staff, and anyone reviewing neoplasm coding history or site-specific classification guidance. The article also addresses broader documentation issues such as multiple-site occurrence and principal diagnosis selection in a general coding context.
Why This Topic Matters
Kaposi’s sarcoma can present at multiple anatomical sites, so accurate classification depends on understanding the site-based structure described in the article. This matters for historical ICD-9-CM coding, data collection, and maintaining consistent documentation review for cases involving this neoplasm.
Article Sections
-
Overview
Introduces Kaposi’s sarcoma and notes that it may be diagnosed in sites beyond the skin. Provides the general coding context for the classification change discussed in the article.
-
ICD-9-CM classification update and site-based subcategories
Summarizes the classification shift to a site-specific category and presents the related fourth-digit subcategories. Covers the broad structure of the coding guidance for different anatomic sites.
-
Multiple-site reporting and principal diagnosis considerations
Addresses how cases involving more than one site are handled in the classification framework. Also discusses the general principle that the principal diagnosis depends on the admission circumstances.
What You Will Learn
- How Kaposi’s sarcoma is organized within ICD-9-CM classification history
- How site-based subcategories are structured for this diagnosis
- How multiple-site involvement is addressed in the article
- How the article frames principal diagnosis considerations in a general coding context
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation staff
- Health information management professionals
- Researchers reviewing ICD-9-CM neoplasm classification
Codes Discussed
Code Ranges Discussed
Subscribe or sign in to view the full article.


Quick, Current, Complete - www.findacode.com