ICD-10 · PDGM grouping
W55 Contact with other mammals
All 63 codes in the W55 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
63
Can lead a claim
0
Cannot lead a claim
63
What CMS assigns to W55
None of the 63 codes is assigned a clinical group. None of the 63 is assigned a comorbidity subgroup. None can lead a claim.
Every code in W55
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 |
|---|---|---|---|---|
| W55.0 Contact with cat | ||||
| W55.01 Bitten by cat | ||||
| W55.01XA | Bitten by cat, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.01XD | Bitten by cat, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.01XS | Bitten by cat, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.03 Scratched by cat | ||||
| W55.03XA | Scratched by cat, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.03XD | Scratched by cat, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.03XS | Scratched by cat, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.09 Other contact with cat | ||||
| W55.09XA | Other contact with cat, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.09XD | Other contact with cat, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.09XS | Other contact with cat, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.1 Contact with horse | ||||
| W55.11 Bitten by horse | ||||
| W55.11XA | Bitten by horse, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.11XD | Bitten by horse, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.11XS | Bitten by horse, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.12 Struck by horse | ||||
| W55.12XA | Struck by horse, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.12XD | Struck by horse, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.12XS | Struck by horse, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.19 Other contact with horse | ||||
| W55.19XA | Other contact with horse, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.19XD | Other contact with horse, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.19XS | Other contact with horse, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.2 Contact with cow | ||||
| W55.21 Bitten by cow | ||||
| W55.21XA | Bitten by cow, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.21XD | Bitten by cow, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.21XS | Bitten by cow, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.22 Struck by cow | ||||
| W55.22XA | Struck by cow, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.22XD | Struck by cow, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.22XS | Struck by cow, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.29 Other contact with cow | ||||
| W55.29XA | Other contact with cow, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.29XD | Other contact with cow, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.29XS | Other contact with cow, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.3 Contact with other hoof stock | ||||
| W55.31 Bitten by other hoof stock | ||||
| W55.31XA | Bitten by other hoof stock, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.31XD | Bitten by other hoof stock, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.31XS | Bitten by other hoof stock, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.32 Struck by other hoof stock | ||||
| W55.32XA | Struck by other hoof stock, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.32XD | Struck by other hoof stock, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.32XS | Struck by other hoof stock, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.39 Other contact with other hoof stock | ||||
| W55.39XA | Other contact with other hoof stock, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.39XD | Other contact with other hoof stock, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.39XS | Other contact with other hoof stock, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.4 Contact with pig | ||||
| W55.41 Bitten by pig | ||||
| W55.41XA | Bitten by pig, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.41XD | Bitten by pig, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.41XS | Bitten by pig, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.42 Struck by pig | ||||
| W55.42XA | Struck by pig, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.42XD | Struck by pig, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.42XS | Struck by pig, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.49 Other contact with pig | ||||
| W55.49XA | Other contact with pig, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.49XD | Other contact with pig, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.49XS | Other contact with pig, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.5 Contact with raccoon | ||||
| W55.51 Bitten by raccoon | ||||
| W55.51XA | Bitten by raccoon, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.51XD | Bitten by raccoon, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.51XS | Bitten by raccoon, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.52 Struck by raccoon | ||||
| W55.52XA | Struck by raccoon, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.52XD | Struck by raccoon, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.52XS | Struck by raccoon, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.59 Other contact with raccoon | ||||
| W55.59XA | Other contact with raccoon, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.59XD | Other contact with raccoon, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.59XS | Other contact with raccoon, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.8 Contact with other mammals | ||||
| W55.81 Bitten by other mammals | ||||
| W55.81XA | Bitten by other mammals, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.81XD | Bitten by other mammals, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.81XS | Bitten by other mammals, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.82 Struck by other mammals | ||||
| W55.82XA | Struck by other mammals, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.82XD | Struck by other mammals, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.82XS | Struck by other mammals, sequela | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.89 Other contact with other mammals | ||||
| W55.89XA | Other contact with other mammals, initial encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.89XD | Other contact with other mammals, subsequent encounter | Cannot lead a claimExternal cause of injury code not reportable as principal diagnosis | None | None |
| W55.89XS | Other contact with other mammals, 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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