X01
ICD-10Non-billable categoryExposure to uncontrolled fire, not in building or structure
Official ICD-10-CM descriptor (FY2026)
Exposure to uncontrolled fire, not in building or structure
X01 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- exposure to forest fire
7th character
- The appropriate 7th character is to be added to each code from category X01
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
More specific codes under X01
- X01.0Exposure to flames in uncontrolled fire, not in bldgcategory
- X01.1Exposure to smoke in uncontrolled fire, not in bldgcategory
- X01.3Fall due to uncontrolled fire, not in building or structurecategory
- X01.4Hit by object due to uncontrolled fire, not in bldgcategory
- X01.8Oth exposure to uncontrolled fire, not in bldgcategory
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.