ICD-10/X30.XXXS

X30.XXXS ICD 2026 Code: Exposure to excessive natural heat, sequela

X30.XXXS is the authoritative medical code for Exposure to excessive natural heat, sequela. This classification is used in medical billing and clinical recording to specify the clinical criteria for exposure to excessive natural heat, sequela (ICD-10-CM X30.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

Exposure to excessive natural heat, sequela is a billable ICD-10-CM diagnosis code X30S. Inclusion terms: Exposure to excessive heat as the cause of sunstroke; Exposure to heat NOS. Excludes1 (not coded here): excessive heat of man-made origin W92; exposure to man-made radiation W89; exposure to sunlight X32; exposure to tanning bed W89. 7th character: The appropriate 7th character is to be added to code X30.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for X30.XXXS in the official ICD-10-CM tabular list.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Exposure to excessive heat as the cause of sunstroke
  • Exposure to heat NOS

Excludes1 — Not Coded Here

Conditions that can never be reported with this code; the two are mutually exclusive.

  • excessive heat of man-made origin W92
  • exposure to man-made radiation W89
  • exposure to sunlight X32
  • exposure to tanning bed W89

Frequently Asked Questions (FAQ) & Clinical Guidance

Does X30.XXXS require a 7th character?

Yes. The appropriate 7th character is to be added to code X30.

What can't be coded together with X30.XXXS?

Per Excludes1 instructions, X30.XXXS must not be reported with: excessive heat of man-made origin (W92); exposure to man-made radiation (W89); exposure to sunlight (X32); exposure to tanning bed (W89).

What conditions are included under X30.XXXS?

Exposure to excessive natural heat, sequela includes: Exposure to excessive heat as the cause of sunstroke; Exposure to heat NOS.

Codes in This Family (4)

Official ICD-10-CM classifications in the same code family as X30.XXXS, with their registry titles.

  • X30 — Exposure to excessive natural heat
  • X30-X39 — Exposure to forces of nature (X30-X39)
  • X30.XXXA — Exposure to excessive natural heat, initial encounter
  • X30.XXXD — Exposure to excessive natural heat, 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 X31.XXXS Exposure to excessive natural cold, sequela
ICD Code X32.XXXS Exposure to sunlight, sequela
ICD Code X34.XXXS Earthquake, sequela
ICD Code X35.XXXS Volcanic eruption, sequela
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