2027 ICD-10-CM Diagnosis Code X97Assault by smoke, fire and flames

ICD-10-CM Codes›V01–Y99›X92-Y09›X97

ICD-10-CM X97
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

X97 is a non-billable ICD-10-CM category code for assault by smoke, fire and flames, so it cannot be submitted on claims. Use a more specific code from this category instead, such as X97.XXXA, X97.XXXD, and X97.XXXS.

Code Identity

ICD-10-CM Code
X97
Billable Status
No — Non-Billable Category
Code Describes
Assault by smoke, fire and flames
Short Description
Assault by smoke, fire and flames
Same as the full description in the CMS dataset.
Chapter
X92-Y09
Assault

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionX92-Y09Assault
CategoryX97Assault by smoke, fire and flames
This CodeX97Assault by smoke, fire and flames

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to X97: its own notes plus those printed at block X92-Y09 and Chapter 20. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block X92-Y09 Assault applies to 202 codes
  • homicide
  • injuries inflicted by another person with intent to injure or kill, by any means

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Assault by arson
  • Assault by cigarettes
  • Assault by incendiary device

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block X92-Y09 Assault applies to 202 codes
  • injuries due to legal intervention (Y35.-)
  • injuries due to operations of war (Y36.-)
  • injuries due to terrorism (Y38.-)

Notes

General instructions on how these codes are used.

From Chapter 20 (V00-Y99) External causes of morbidity and mortality applies to 7,461 codes
  • This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

  • The appropriate 7th character is to be added to code X97
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name X97, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming X97: they are not reported together with it, unless the two conditions are unrelated.

  • Block X00-X08 Exposure to smoke, fire and flames
    arson (X97)
  • X96 Assault by explosive material
    incendiary device (X97)

Use Additional Code 31

These codes say to use an additional code from the note, and X97 is one of the codes named.

  • T20.0 Burn of unspecified degree of head, face, and neck
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T20.1 Burn of first degree of head, face, and neck
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T20.2 Burn of second degree of head, face, and neck
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T20.3 Burn of third degree of head, face, and neck
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T21.0 Burn of unspecified degree of trunk
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T21.1 Burn of first degree of trunk
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T21.2 Burn of second degree of trunk
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T21.3 Burn of third degree of trunk
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T22.0 Burn of unspecified degree of shoulder and upper limb, except wrist and hand
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T22.1 Burn of first degree of shoulder and upper limb, except wrist and hand
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T22.2 Burn of second degree of shoulder and upper limb, except wrist and hand
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T22.3 Burn of third degree of shoulder and upper limb, except wrist and hand
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T23.0 Burn of unspecified degree of wrist and hand
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T23.1 Burn of first degree of wrist and hand
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code
  • T23.2 Burn of second degree of wrist and hand
    external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) names X96-X98, which includes this code

16 more Use Additional Code notes name this code. Browse all Use Additional Code notes.

External Cause of Injuries IndexGuidance

Patient EducationClinical

Burns

A burn is damage to your body's tissues caused by heat, chemicals, electricity, sunlight, or radiation. Scalds from hot liquids and steam, building fires and flammable liquids and gases are the most common causes of burns. Another kind is an inhalation injury, caused by breathing smoke.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About X97Overview

What is the ICD-10 code for assault by smoke, fire and flames?

X97 is the ICD-10-CM category for assault by smoke, fire and flames, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is X97 (Assault by smoke, fire and flames) a billable code?

No. This is a category header that groups the codes for assault by smoke, fire and flames, and headers cannot be submitted on claims. Claims for assault by smoke, fire and flames need a more specific code from this category, such as X97.XXXA, X97.XXXD, and X97.XXXS.

Can X97 be reported with a code from Y35?

Not as a rule. The Excludes1 note at block X92-Y09, which applies to X97, lists "injuries due to legal intervention (Y35.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).