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X30 ⚠ Non-billable

Exposure to excessive natural heat

ICD-10-CM · FY2026 · External Causes of Morbidity

Code
X30
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code X30?
ICD-10-CM code X30 represents Exposure to excessive natural heat. It is a non-billable header code requiring a more specific subcategory in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is X30 billable?
No. X30 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is X30 in?
X30 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.

Related codes in the X30 category

X30.XXXA Exposure to excessive natural heat, initial encounter Billable X30.XXXD Exposure to excessive natural heat, subsequent encounter Billable X30.XXXS Exposure to excessive natural heat, sequela Billable

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