ICD-10-CM Alphabetic Index · FY 2026 Letter X
Index Terms Starting With X ICD-10-CM
The letter X section of the FY 2026 Alphabetic Index carries 18 main terms, from Xanthelasma to XXY syndrome. Terms with a direct code link straight to the code page, cross references point to the main term that holds the codes, and terms with a handful of sub-entries render in full right here. The largest terms open their own full index page.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
18
Main Terms
75
Index Entries
10
Direct Codes
1
Cross-refs
- XanthoastrocytomaSub-entriesspecified site see Neoplasm, malignant, by siteunspecified site C71.9
- XanthofibromaCross-ref See: Neoplasm, connective tissue, benign
- unrelated to vitamin A deficiency see Keratoconjunctivitis
- XerosisSub-entries
- X-ray (of)Sub-entries
Related References
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
