X00
⚠ Non-billable
Exposure to uncontrolled fire in building or structure
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
X00
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 X00?
ICD-10-CM code X00 represents Exposure to uncontrolled fire in building or structure. 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 X00 billable?
No. X00 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is X00 in?
X00 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the X00 category
X00.0
Exposure to flames in uncontrolled fire in building or structure
Non-billable
X00.1
Exposure to smoke in uncontrolled fire in building or structure
Non-billable
X00.2
Injury due to collapse of burning building or structure in uncontrolled fire
Non-billable
X00.3
Fall from burning building or structure in uncontrolled fire
Non-billable
X00.4
Hit by object from burning building or structure in uncontrolled fire
Non-billable
X00.5
Jump from burning building or structure in uncontrolled fire
Non-billable
X00.8
Other exposure to uncontrolled fire in building or structure
Non-billable
X00.0XXA
Exposure to flames in uncontrolled fire in building or structure, initial encounter
Billable
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