ICD-10/X35.XXXS

X35.XXXS ICD 2026 Code: Volcanic eruption, sequela

X35.XXXS is the authoritative medical code for Volcanic eruption, sequela. This classification is used in medical billing and clinical recording to specify the clinical criteria for volcanic eruption, sequela (ICD-10-CM X35.XXXS), ensuring healthcare documentation aligns with 2026 federal coding standards.

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Official Registry Overview & Definition

Volcanic eruption, sequela is a billable ICD-10-CM diagnosis code X35S. Excludes2 (not included here): tidal wave tsunami due to volcanic eruption X37.41. 7th character: The appropriate 7th character is to be added to code X35.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for X35.XXXS in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

  • tidal wave tsunami due to volcanic eruption X37.41

Frequently Asked Questions (FAQ) & Clinical Guidance

Does X35.XXXS require a 7th character?

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

Can X35.XXXS be reported alongside related conditions?

Per Excludes2 instructions, X35.XXXS and the following may both be reported when both are present: tidal wave (tsunami) due to volcanic eruption (X37.41).

Codes in This Family (3)

Official ICD-10-CM classifications in the same code family as X35.XXXS, with their registry titles.

  • X35 — Volcanic eruption
  • X35.XXXA — Volcanic eruption, initial encounter
  • X35.XXXD — Volcanic eruption, subsequent encounter

Related Codes & Numerical Sequence (Crawl Map)

Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:

ICD Code X30.XXXS Exposure to excessive natural heat, sequela
ICD Code X31.XXXS Exposure to excessive natural cold, sequela
ICD Code X32.XXXS Exposure to sunlight, sequela
ICD Code X34.XXXS Earthquake, sequela
ICD Code X38.XXXS Flood, sequela
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