ICD-10 · PDGM grouping
X01 Exposure to uncontrolled fire, not in building or structure
All 15 codes in the X01 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
15
Can lead a claim
0
Cannot lead a claim
15
What CMS assigns to X01
None of the 15 codes is assigned a clinical group. None of the 15 is assigned a comorbidity subgroup. None can lead a claim.
Every code in X01
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| X01.0 Exposure to flames in uncontrolled fire, not in building or structure | ||||
| X01.0XXA | Exposure to flames in uncontrolled fire, not in building or structure, initial encounterCMS: Exposure to flames in uncontrolled fire, not in bldg, init | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.0XXD | Exposure to flames in uncontrolled fire, not in building or structure, subsequent encounterCMS: Exposure to flames in uncontrolled fire, not in bldg, subs | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.0XXS | Exposure to flames in uncontrolled fire, not in building or structure, sequelaCMS: Exposure to flames in uncntrld fire, not in bldg, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.1 Exposure to smoke in uncontrolled fire, not in building or structure | ||||
| X01.1XXA | Exposure to smoke in uncontrolled fire, not in building or structure, initial encounterCMS: Exposure to smoke in uncontrolled fire, not in bldg, init | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.1XXD | Exposure to smoke in uncontrolled fire, not in building or structure, subsequent encounterCMS: Exposure to smoke in uncontrolled fire, not in bldg, subs | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.1XXS | Exposure to smoke in uncontrolled fire, not in building or structure, sequelaCMS: Exposure to smoke in uncontrolled fire, not in bldg, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.3 Fall due to uncontrolled fire, not in building or structure | ||||
| X01.3XXA | Fall due to uncontrolled fire, not in building or structure, initial encounterCMS: Fall due to uncontrolled fire, not in bldg, init | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.3XXD | Fall due to uncontrolled fire, not in building or structure, subsequent encounterCMS: Fall due to uncontrolled fire, not in bldg, subs | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.3XXS | Fall due to uncontrolled fire, not in building or structure, sequelaCMS: Fall due to uncontrolled fire, not in bldg, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.4 Hit by object due to uncontrolled fire, not in building or structure | ||||
| X01.4XXA | Hit by object due to uncontrolled fire, not in building or structure, initial encounterCMS: Hit by object due to uncontrolled fire, not in bldg, init | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.4XXD | Hit by object due to uncontrolled fire, not in building or structure, subsequent encounterCMS: Hit by object due to uncontrolled fire, not in bldg, subs | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.4XXS | Hit by object due to uncontrolled fire, not in building or structure, sequelaCMS: Hit by object due to uncontrolled fire, not in bldg, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.8 Other exposure to uncontrolled fire, not in building or structure | ||||
| X01.8XXA | Other exposure to uncontrolled fire, not in building or structure, initial encounterCMS: Oth exposure to uncontrolled fire, not in bldg, init | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.8XXD | Other exposure to uncontrolled fire, not in building or structure, subsequent encounterCMS: Oth exposure to uncontrolled fire, not in bldg, subs | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| X01.8XXS | Other exposure to uncontrolled fire, not in building or structure, sequelaCMS: Oth exposure to uncontrolled fire, not in bldg, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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