X00Not billable, use a more specific code below
Exposure to uncontrolled fire in building or structure
In Exposure to smoke, fire and flames (X00-X08), chapter 20: External Causes of Morbidity
21 billable codes under X00: none are a CC or MCC; none map to an HCC.
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Instructional notes
Includes: conditions that are coded here
- conflagration in building or structure
Excludes2: not included here, code separately if applicable
Code first: code the underlying condition first, then this code
- any associated cataclysm
Also applies, from Exposure to smoke, fire and flames (X00-X08)
These notes sit on X00-X08 and apply to every code under it, including X00.
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers how to report external cause codes (V00-Y99) describing cause, intent, place, activity, and status. They are never principal or first-listed, and reporting is voluntary unless required.
- General External Cause Coding Guidelines (page 88)
- Place of Occurrence Guideline (page 89)
- Activity Code (page 89)
- Place of Occurrence, Activity, and Status Codes Used with other External Cause Code (page 89)
- If the Reporting Format Limits the Number of External Cause Codes (page 90)
- Multiple External Cause Coding Guidelines (page 90)
- Child and Adult Abuse Guideline (page 90)
- Unknown or Undetermined Intent Guideline (page 91)
All codes under X00
X00 can't be used on a claim. Pick a billable code below; grey headings group them.
- X00.0Exposure to flames in uncontrolled fire in building or structure
- X00.0XXAExposure to flames in uncontrolled fire in building or structure, initial encounter
- X00.0XXDExposure to flames in uncontrolled fire in building or structure, subsequent encounter
- X00.0XXSExposure to flames in uncontrolled fire in building or structure, sequela
- X00.1Exposure to smoke in uncontrolled fire in building or structure
- X00.1XXAExposure to smoke in uncontrolled fire in building or structure, initial encounter
- X00.1XXDExposure to smoke in uncontrolled fire in building or structure, subsequent encounter
- X00.1XXSExposure to smoke in uncontrolled fire in building or structure, sequela
- X00.2Injury due to collapse of burning building or structure in uncontrolled fire
- X00.2XXAInjury due to collapse of burning building or structure in uncontrolled fire, initial encounter
- X00.2XXDInjury due to collapse of burning building or structure in uncontrolled fire, subsequent encounter
- X00.2XXSInjury due to collapse of burning building or structure in uncontrolled fire, sequela
- X00.3Fall from burning building or structure in uncontrolled fire
- X00.3XXAFall from burning building or structure in uncontrolled fire, initial encounter
- X00.3XXDFall from burning building or structure in uncontrolled fire, subsequent encounter
- X00.3XXSFall from burning building or structure in uncontrolled fire, sequela
- X00.4Hit by object from burning building or structure in uncontrolled fire
- X00.4XXAHit by object from burning building or structure in uncontrolled fire, initial encounter
- X00.4XXDHit by object from burning building or structure in uncontrolled fire, subsequent encounter
- X00.4XXSHit by object from burning building or structure in uncontrolled fire, sequela
- X00.5Jump from burning building or structure in uncontrolled fire
- X00.5XXAJump from burning building or structure in uncontrolled fire, initial encounter
- X00.5XXDJump from burning building or structure in uncontrolled fire, subsequent encounter
- X00.5XXSJump from burning building or structure in uncontrolled fire, sequela
- X00.8Other exposure to uncontrolled fire in building or structure
- X00.8XXAOther exposure to uncontrolled fire in building or structure, initial encounter
- X00.8XXDOther exposure to uncontrolled fire in building or structure, subsequent encounter
- X00.8XXSOther exposure to uncontrolled fire in building or structure, sequela
X00 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
Other codes that refer to X00
Notes on these codes point to X00.
- T20.0 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T20.1 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T20.2 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T20.3 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T21.0 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T21.1 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T21.2 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T21.3 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T22.0 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T22.1 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T22.2 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T22.3 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T23.0 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T23.1 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T23.2 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T23.3 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T24.0 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T24.1 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T24.2 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
- T24.3 Use Additional Code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
Code history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.