Assault by steam, hot vapors and hot objects (X98) ICD-10-CM
The X98 code range covers assault by steam, hot vapors and hot objects with 25 ICD-10-CM diagnosis codes. 18 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- The appropriate 7th character is to be added to each code from category X98
7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
- A - initial encounter
- D - subsequent encounter
- S - sequela
Codes in the X98 Range 25 codes · 18 billable
- X98 Assault by steam, hot vapors and hot objectsNon-billable
- X98.0 Assault by steam or hot vaporsNon-billable
- X98.0XXA Assault by steam or hot vapors, initial encounter
- X98.0XXD Assault by steam or hot vapors, subsequent encounter
- X98.0XXS Assault by steam or hot vapors, sequela
- X98.1 Assault by hot tap waterNon-billable
- X98.1XXA Assault by hot tap water, initial encounter
- X98.1XXD Assault by hot tap water, subsequent encounter
- X98.1XXS Assault by hot tap water, sequela
- X98.2 Assault by hot fluidsNon-billable
- X98.2XXA Assault by hot fluids, initial encounter
- X98.2XXD Assault by hot fluids, subsequent encounter
- X98.2XXS Assault by hot fluids, sequela
- X98.3 Assault by hot household appliancesNon-billable
- X98.3XXA Assault by hot household appliances, initial encounter
- X98.3XXD Assault by hot household appliances, subsequent encounter
- X98.3XXS Assault by hot household appliances, sequela
- X98.8 Assault by other hot objectsNon-billable
- X98.8XXA Assault by other hot objects, initial encounter
- X98.8XXD Assault by other hot objects, subsequent encounter
- X98.8XXS Assault by other hot objects, sequela
- X98.9 Assault by unspecified hot objectsNon-billable
- X98.9XXA Assault by unspecified hot objects, initial encounter
- X98.9XXD Assault by unspecified hot objects, subsequent encounter
- X98.9XXS Assault by unspecified hot objects, sequela
About the X98 Code Range
These assaults involve steam, hot vapors, hot liquids, or hot objects.
X98 separates them by what was used: steam or hot vapors (X98.0), hot tap water (X98.1), and other hot fluids (X98.2). Hot household appliances have their own subdivision (X98.3), as do other hot objects (X98.8) and unspecified hot objects (X98.9). Each subdivision ends with a seventh character for an initial encounter (A), subsequent encounter (D), or later effects, called sequela (S).
Questions About This Page
How many billable codes are in the X98 range?
Of the 25 codes in this range, 18 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the X98 range classify?
The range classifies assault by steam, hot vapors and hot objects. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
