ICD-10 · PDGM grouping
W50 Accidental hit, strike, kick, twist, bite or scratch by another person
All 15 codes in the W50 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
15
Can lead a claim
0
Cannot lead a claim
15
What CMS assigns to W50
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 W50
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 |
|---|---|---|---|---|
| W50.0 Accidental hit or strike by another person | ||||
| W50.0XXA | Accidental hit or strike by another person, initial encounterCMS: Accidental hit or strike by another person, init encntr | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.0XXD | Accidental hit or strike by another person, subsequent encounterCMS: Accidental hit or strike by another person, subs encntr | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.0XXS | Accidental hit or strike by another person, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.1 Accidental kick by another person | ||||
| W50.1XXA | Accidental kick by another person, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.1XXD | Accidental kick by another person, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.1XXS | Accidental kick by another person, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.2 Accidental twist by another person | ||||
| W50.2XXA | Accidental twist by another person, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.2XXD | Accidental twist by another person, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.2XXS | Accidental twist by another person, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.3 Accidental bite by another person | ||||
| W50.3XXA | Accidental bite by another person, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.3XXD | Accidental bite by another person, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.3XXS | Accidental bite by another person, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.4 Accidental scratch by another person | ||||
| W50.4XXA | Accidental scratch by another person, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.4XXD | Accidental scratch by another person, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W50.4XXS | Accidental scratch by another person, 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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