ICD-10-CM Alphabetic Index · FY 2026 Letter Z

Index Terms Starting With Z ICD-10-CM

The letter Z section of the FY 2026 Alphabetic Index carries 13 main terms, from Zahorsky's syndrome to Zymotic. 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

Main Terms

Index Entries

Direct Codes

Cross-refs

A B C D E F G H I J K L M N O P Q R S T U V W X YZ

13 of 13 shown

Zahorsky's syndrome (herpangina)Code B08.5
Zellweger's syndromeCode E71.510
Zenker's diverticulum (esophagus)Code K22.5
Ziehen-Oppenheim diseaseCode G24.1
Zieve's syndromeCode K70.0
Zika NOSSub-entries A92.5
congenital P35.4
ZincSub-entries
deficiency, dietary E60
metabolism disorder E83.2
Zollinger-Ellison syndromeCode E16.4
ZonaCross-ref See: Herpes, zoster
ZoophobiaCode F40.218
Zoster (herpes)Cross-ref See: Herpes, zoster
ZygomycosisSub-entries B46.9
specified NEC B46.8
ZymoticCross-ref See: condition

Related References

Index to Diseases and Injuries ICD-10-CM Code Lookup ICD-10-CM Codes List

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.