AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2026 Quarter 4; New/Revised ICD-10-CM Codes
Lynch Syndrome
New category QA1 , Genetic disorders associated with neoplasms, not elsewhere classified, has been created, with subcategory QA1.7 , Inherited neoplasm predisposition syndromes involving multiple systems, not elsewhere classified, to identify hereditary cancer syndromes. Hereditary cancer syndromes are genetic conditions caused by inherited pathogenic gene mutations that significantly increase the risk of developing specific cancers, often with onset at an early age. Most hereditary cancer syndromes exhibit autosomal dominant inheritance. Code QA1.71 , Lynch syndrome, has been created to capture Lynch syndrome. Lynch syndrome, formerly known as hereditary nonpolyposis colorectal cancer, is an autosomal dominant genetic condition caused by inherited...
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Article Overview
This article discusses Lynch syndrome as an inherited condition, including its genetic background, inheritance pattern, and associations with several cancer types. It also describes a new classification category for hereditary cancer syndromes. The content is relevant to readers seeking an introduction to the condition and its classification.
Why This Topic Matters
Understanding the genetic and cancer-related context of Lynch syndrome can help readers identify the scope of information addressed by this article and its relevance to hereditary cancer classification.
What You Will Learn
- How the article characterizes the genetic basis and inheritance of Lynch syndrome.
- Which broad categories of cancers are discussed in connection with the syndrome.
- How the article situates Lynch syndrome within a newly described hereditary cancer classification.
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Who Should Read This
- Medical coders
- Healthcare professionals
- Readers seeking general information about hereditary cancer syndromes
Codes Discussed
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