Chapter 28: Extension Codes
ICD-11 codes XA0000-XY96
Extension codes are used as supplementary codes to provide additional detail about diagnosis codes. They include severity, temporality, aetiology, anatomy, and other qualifiers. Extension codes cannot be used as standalone codes.
XA00-XA9Z
No category codes found in this block.
XB00-XB9Z
No category codes found in this block.
XC00-XC0Z
No category codes found in this block.
XD00-XD0Z
No category codes found in this block.
XE00-XE0Z
No category codes found in this block.
XK00-XK9Z
No category codes found in this block.
XM00-XM0Z
No category codes found in this block.
XN00-XN0Z
No category codes found in this block.
XS00-XS0Z
No category codes found in this block.
XY00-XY96
No category codes found in this block.
Frequently Asked Questions
What ICD-11 codes are in Chapter 28?
Chapter 28: Extension Codes covers ICD-11 codes XA0000-XY96. It contains 10 code blocks with 0 top-level categories.
What conditions does ICD-11 Chapter 28 cover?
Extension codes are used as supplementary codes to provide additional detail about diagnosis codes. They include severity, temporality, aetiology, anatomy, and other qualifiers. Extension codes cannot be used as standalone codes. This chapter includes codes from XA0000-XY96.
How is ICD-11 Chapter 28 different from ICD-10?
ICD-11 reorganized many chapters compared to ICD-10. Chapter 28 (Extension Codes) may include conditions that were in different ICD-10 chapters, and some conditions previously here may have moved. ICD-11 also adds new chapters for sleep-wake disorders, sexual health, and traditional medicine that did not exist in ICD-10.
How many code blocks are in ICD-11 Chapter 28?
Chapter 28 has 10 code blocks: XA00-XA9Z, XB00-XB9Z, XC00-XC0Z, XD00-XD0Z, and 6 more.
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