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X35 ICD-10-CM Code: Volcanic eruption

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

X35

Volcanic eruption

ICD-10-CM diagnosis code · United States clinical modification

Where X35 sits

  1. 1

    Chapter 20

    External causes of morbidity (V00-Y99)

  2. 2

    Section

    Accidents (V00-X58)

  3. 3

    Category X35

    Volcanic eruption

  4. 4

    Code X35

    Volcanic eruption

Codes under X35

X35 is a non-billable category. Choose the child code that best matches the documented diagnosis.

X35.XXXAVolcanic eruption, initial encounterX35.XXXDVolcanic eruption, subsequent encounterX35.XXXSVolcanic eruption, sequela

Notes for this code

Inclusion terms

No inclusion terms are listed for X35.

Code first

No “code first” instruction is listed for X35.

Use additional code

No “use additional code” instruction is listed for X35.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for X35.

Excludes2

Conditions not included here that may be reported separately when present.

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

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Frequently asked questions

What does ICD-10-CM code X35 mean?

X35 is the FY 2027 U.S. ICD-10-CM code for “Volcanic eruption.”

Is X35 a billable or specific ICD-10-CM code?

No. X35 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is X35 located in ICD-10-CM?

X35 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Accidents (V00-X58) (V00–X58), under category X35, Volcanic eruption.

What coding notes are listed for X35?

No inclusion terms are listed for X35 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: tidal wave (tsunami) due to volcanic eruption (X37.41).