MCMedicalCodingSoftware
X35

X35: Volcanic eruption

Non-billable headerICD-10-CM

X35 is a non-billable header ICD-10-CM code for volcanic eruption. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to code X35

A
initial encounter
D
subsequent encounter
S
sequela

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • tidal wave (tsunami) due to volcanic eruption (X37.41)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Volcanic eruption(any injury)
  • Forces of nature›volcanic eruption
  • Victim›volcanic eruption

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead X35

3 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.