X01Header code — not billable
Exposure to uncontrolled fire, not in building or structure
- Chapter
- 20. External causes of morbidity
- Category
- X01
- Effective date
- October 1, 2026
Related codes in category X01
X01.0Exposure to flames in uncontrolled fire, not in bldgX01.0XXAExposure to flames in uncontrolled fire, not in bldg, initYesX01.0XXDExposure to flames in uncontrolled fire, not in bldg, subsYesX01.0XXSExposure to flames in uncntrld fire, not in bldg, sequelaYesX01.1Exposure to smoke in uncontrolled fire, not in bldgX01.1XXAExposure to smoke in uncontrolled fire, not in bldg, initYesX01.1XXDExposure to smoke in uncontrolled fire, not in bldg, subsYesX01.1XXSExposure to smoke in uncontrolled fire, not in bldg, sequelaYesX01.3Fall due to uncontrolled fire, not in building or structureX01.3XXAFall due to uncontrolled fire, not in bldg, initYesX01.3XXDFall due to uncontrolled fire, not in bldg, subsYesX01.3XXSFall due to uncontrolled fire, not in bldg, sequelaYes
Frequently asked questions
What is ICD-10 code X01?
X01 is an ICD-10-CM diagnosis code for Exposure to uncontrolled fire, not in building or structure.
Is X01 a billable code?
No. X01 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is X01 in?
X01 falls under Chapter 20: External causes of morbidity.
When did X01 become effective?
X01 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to X01?
X01 belongs to category X01, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.