AHA Coding Clinic® for ICD-9 - 2004 Issue 4; VOLUMES 1 AND 2 NEW/REVISED DIAGNOSIS CODES
Cervical Dysplasia
Effective October 1, 2004, code 622.1 has been expanded to allow the reporting of dysplasia of cervix (622.10), mild dysplasia of cervix [CIN I] (622.11), and moderate dysplasia of cervix [CIN II] (622.12). These changes were made to reflect the most recent version of the Bethesda system, which is used to report abnormal Pap smear results. Cervical dysplasia is a term used to describe the appearance of abnormal cells on the surface of the cervix. Cervical dysplasia is also called cervical intraepithelial neoplasia (CIN), and can range from mild (CIN I), to moderate (CIN II)...
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Article Overview
This article explains cervical dysplasia as a clinical and coding topic, with emphasis on ICD-9-CM category updates, terminology changes, and related exclusions tied to cervical cytology and carcinoma in situ categories. It is relevant to coders, billers, clinicians, and compliance staff who need to understand how the topic is organized in the diagnosis code set and how related cervical findings are categorized.
Why This Topic Matters
Accurate understanding of cervical dysplasia terminology and category placement helps support consistent diagnosis coding, reporting, and communication across clinical and administrative settings.
Article Sections
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Effective October 1, 2004 coding update
Introduces the date-specific coding revision and the general reason for the update. The section frames how the affected cervical diagnosis categories were revised.
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Clinical overview of cervical dysplasia
Provides a broad medical explanation of cervical dysplasia and its relationship to cervical intraepithelial neoplasia. It also summarizes general clinical context and diagnosis by screening.
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622 Noninflammatory disorders of cervix
Lists the broader diagnosis category and the related subcategory for cervical dysplasia. The section includes terminology revisions and exclusion references tied to that category.
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233 Carcinoma in situ of breast and genitourinary system
Describes related changes in the carcinoma in situ category for the cervix uteri subcategory. It notes associated terminology updates and exclusion references.
What You Will Learn
- How the article frames cervical dysplasia as both a clinical term and a coding topic
- What diagnosis code categories were updated in connection with the cervical dysplasia terminology changes
- How the article relates cervical dysplasia to broader cervical diagnostic groupings and exclusions
- Why the Bethesda system is mentioned in the context of abnormal cervical cytology reporting
Who Should Read This
- Medical coders
- Coding auditors
- Billers
- Clinical documentation staff
- Compliance professionals
- Gynecology practices
Codes Discussed
Code Ranges Discussed
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