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ICD-10-CM 2027 diagnosis code

X98Assault by steam, hot vapors and hot objects

Not billable — use a more specific code

X98 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About X98

X98 is the ICD-10-CM diagnosis code for assault by steam, hot vapors and hot objects. It belongs to block X92-Y09 (assault) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: X98.0 (vapors), X98.1 (water), X98.2 (fluids), X98.3 (appliances), X98.8 (objects) and X98.9 (objects).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under X98

Notes that apply from higher levels

Instructions written at a parent level also apply to X98.

Broader instructions also apply from X92-Y09 Assault and Chapter 20: External causes of morbidity.

Codes whose notes reference X98

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about X98

Is X98 billable?

No. X98 is a header code. Report one of its more specific subcodes instead.