ICD-10 · PDGM grouping
Y03 Assault by crashing of motor vehicle
All 6 codes in the Y03 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.
Codes in family
6
Can lead a claim
0
Cannot lead a claim
6
What CMS assigns to Y03
None of the 6 codes is assigned a clinical group. None of the 6 is assigned a comorbidity subgroup. None can lead a claim.
Every code in Y03
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 |
|---|---|---|---|---|
| Y03.0 Assault by being hit or run over by motor vehicle | ||||
| Y03.0XXA | Assault by being hit or run over by motor vehicle, initial encounterCMS: Assault by being hit or run over by motor vehicle, init | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y03.0XXD | Assault by being hit or run over by motor vehicle, subsequent encounterCMS: Assault by being hit or run over by motor vehicle, subs | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y03.0XXS | Assault by being hit or run over by motor vehicle, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y03.8 Other assault by crashing of motor vehicle | ||||
| Y03.8XXA | Other assault by crashing of motor vehicle, initial encounterCMS: Other assault by crashing of motor vehicle, init encntr | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y03.8XXD | Other assault by crashing of motor vehicle, subsequent encounterCMS: Other assault by crashing of motor vehicle, subs encntr | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| Y03.8XXS | Other assault by crashing of motor vehicle, 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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