Is X00.2 a billable ICD-10-CM code?

No. X00.2 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does X00.2 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Exposure to smoke, fire and flames (X00-X08).

What cannot be coded together with X00.2?

X00.2 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.

X00.2

X00.2 — Injury due to collapse of burning building or structure in uncontrolled fire

Non-billable headerICD-10-CM

X00.2 is a non-billable header ICD-10-CM code for injury due to collapse of burning building or structure in uncontrolled fire. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category X00

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

injury due to collapse of building not on fire (W20.1)

Excludes2 inherited from the categories above X00.2

Also inherited, and the opposite of Excludes1: these conditions are not part of X00.2, but a patient can have both, so you may code both.

Written on X00 — Exposure to uncontrolled fire in building or structure

Exposure to ignition or melting of nightwear (X05)
Exposure to ignition or melting of other clothing and apparel (X06.-)
Exposure to other specified smoke, fire and flames (X08.-)

Other codes that can never be billed with X00.2

These codes carry an Excludes1 note pointing at X00.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading X00.2 alone.

W13.9Fall from, out of or through building, not otherwise specified
W13.9XXAFall from, out of or through building, not otherwise specified, initial encounter
W13.9XXDFall from, out of or through building, not otherwise specified, subsequent encounter
W13.9XXSFall from, out of or through building, not otherwise specified, sequela
W20.1Struck by object due to collapse of building
W20.1XXAStruck by object due to collapse of building, initial encounter
W20.1XXDStruck by object due to collapse of building, subsequent encounter
W20.1XXSStruck by object due to collapse of building, sequela

Risk adjustment

X00.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How X00.2 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to X00.2.

Collapse›building›burning(uncontrolled fire)
Collapse›structure›burning(uncontrolled fire)
Exposure›fire, flames›uncontrolled›in building or structure›with›injury due to building collapse

Code history

X00.2 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead X00.2

3 child codes. Green means billable.

Related codes at this level

Codes that share X00. If X00.2 is not quite right, the correct code is usually one of these.

Questions about X00.2

Is X00.2 a billable ICD-10-CM code?: No. X00.2 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does X00.2 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Exposure to smoke, fire and flames (X00-X08).
What cannot be coded together with X00.2?: X00.2 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.