Is ICD-10-CM code X97 billable?

No, X97 (Assault by smoke, fire and flames) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code X97 belong to?

X97 belongs to Chapter 20 of the ICD-10-CM tabular list: V00–Y99 (External Causes of Morbidity).

X97Not billable, use a more specific code below

Assault by smoke, fire and flames

In Assault (X92-Y09), chapter 20: External Causes of Morbidity

3 billable codes under X97: none are a CC or MCC; none map to an HCC.

Instructional notes

Includes: conditions that are coded here

Assault by arson
Assault by cigarettes
Assault by incendiary device

Also applies, from Assault (X92-Y09)

These notes sit on X92-Y09 and apply to every code under it, including X97.

Includes: conditions that are coded here

homicide
injuries inflicted by another person with intent to injure or kill, by any means

Excludes1: not coded here, use a different code

injuries due to legal intervention (Y35.-)
injuries due to operations of war (Y36.-)
injuries due to terrorism (Y38.-)

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)

Read Section I.C.20 (page 87), 3 more topics

All codes under X97

X97 can't be used on a claim. Pick a billable code below; grey headings group them.

X97 MS-DRGs

This code does not group to an MS-DRG as a principal diagnosis.

Other codes that refer to X97

Notes on these codes point to X97.

X00-X08 Excludes1: arson (X97)
X96 Excludes1: incendiary device (X97)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

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.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.