AHA Coding Clinic® for ICD-9 - 1993 Fourth Quarter; New/Revised Codes
Hypersensitivity (Anaphylactic) Reactions
Effective October 1, 1993, a new subcategory 995.6, Anaphylactic shock due to adverse food reaction, has been created. It will now be possible to individually identify adverse food reactions due to peanuts, crustaceans, and fruits/vegetables, tree nuts/seeds, fish, food additives, milk products, and eggs. Code 995.0, now reads Other anaphylactic shock. Instructional notes have been added to code any underlying conditions and to use E-codes to identity external causes. An excludes note has also been added referring the coder to 995.6 for anaphylactic shock due to adverse food reaction. Additionally, the includes note under Drugs, Medicinal...
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Article Overview
This premium article explains a coding update for hypersensitivity and anaphylactic reactions, focusing on ICD-9-CM changes effective October 1, 1993. It is intended for coders and other reimbursement professionals who need to understand how the classification was revised, what broad reaction categories were affected, and how associated guideline notes were updated.
Why This Topic Matters
Changes to diagnosis classification and instructional notes can affect code selection, claim accuracy, and consistency in reporting adverse reactions. This article helps readers recognize the scope of the update and the related ICD-9-CM references involved.
What You Will Learn
- What changed in the hypersensitivity and anaphylactic reaction classification update
- Which broad reaction categories were affected by the ICD-9-CM revision
- How related instructional and includes/excludes notes were updated at a high level
- What types of adverse food reaction groupings were newly recognized in the update
Who Should Read This
- Medical coders
- Coding auditors
- Revenue cycle staff
- Compliance staff
- Clinical documentation specialists
Codes Discussed
Code Ranges Discussed
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