MCMedicalCodingSoftware
X35.XXXD

X35.XXXD: Volcanic eruption, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

X35.XXXD is a billable, specific ICD-10-CM code for volcanic eruption, subsequent encounter. It is valid for submission on a claim.

Check X35.XXXD with the rest of the claim: free scrubber

7th character "D": subsequent encounter

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)

Excludes2 inherited from the categories above X35.XXXD

Not part of this code, but both may be coded when both are present.

Written on X35: Volcanic eruption

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

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under X35

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.