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X03 ⚠ Non-billable

Exposure to controlled fire, not in building or structure

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

Code
X03
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.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Includes
  • exposure to bon fire
  • exposure to camp-fire
  • exposure to trash fire
7th character
  • The appropriate 7th character is to be added to each code from category X03

Frequently asked questions

What is ICD-10 code X03?
ICD-10-CM code X03 represents Exposure to controlled fire, not 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 X03 billable?
No. X03 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is X03 in?
X03 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.

Related codes in the X03 category

X03.0 Exposure to flames in controlled fire, not in building or structure Non-billable X03.1 Exposure to smoke in controlled fire, not in building or structure Non-billable X03.3 Fall due to controlled fire, not in building or structure Non-billable X03.4 Hit by object due to controlled fire, not in building or structure Non-billable X03.8 Other exposure to controlled fire, not in building or structure Non-billable X03.0XXA Exposure to flames in controlled fire, not in building or structure, initial encounter Billable X03.0XXD Exposure to flames in controlled fire, not in building or structure, subsequent encounter Billable X03.0XXS Exposure to flames in controlled fire, not in building or structure, sequela Billable

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