X35Header code — not billable
Volcanic eruption
- Chapter
- 20. External causes of morbidity
- Category
- X35
- Effective date
- October 1, 2026
Related codes in category X35
Frequently asked questions
What is ICD-10 code X35?
X35 is an ICD-10-CM diagnosis code for Volcanic eruption.
Is X35 a billable code?
No. X35 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is X35 in?
X35 falls under Chapter 20: External causes of morbidity.
When did X35 become effective?
X35 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to X35?
X35 belongs to category X35, which includes 3 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.