ICD-10-CM category
W55: Contact with other mammals
Codes under W55 (Contact with other mammals). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| W55.0 | Contact with cat | — |
| W55.0 | Contact with cat | — |
| W55.01 | Bitten by cat | — |
| W55.01 | Bitten by cat | — |
| W55.1 | Contact with horse | — |
| W55.1 | Contact with horse | — |
| W55.01XA | Bitten by cat, initial encounter | ✓ |
| W55.01XA | Bitten by cat, initial encounter | ✓ |
| W55.01XD | Bitten by cat, subsequent encounter | ✓ |
| W55.01XD | Bitten by cat, subsequent encounter | ✓ |
| W55.01XS | Bitten by cat, sequela | ✓ |
| W55.01XS | Bitten by cat, sequela | ✓ |
| W55.2 | Contact with cow | — |
| W55.2 | Contact with cow | — |
| W55.03 | Scratched by cat | — |
| W55.03 | Scratched by cat | — |
| W55.3 | Contact with other hoof stock | — |
| W55.3 | Contact with other hoof stock | — |
| W55.03XA | Scratched by cat, initial encounter | ✓ |
| W55.03XA | Scratched by cat, initial encounter | ✓ |
| W55.03XD | Scratched by cat, subsequent encounter | ✓ |
| W55.03XD | Scratched by cat, subsequent encounter | ✓ |
| W55.03XS | Scratched by cat, sequela | ✓ |
| W55.03XS | Scratched by cat, sequela | ✓ |
| W55.4 | Contact with pig | — |
| W55.4 | Contact with pig | — |
| W55.5 | Contact with raccoon | — |
| W55.5 | Contact with raccoon | — |
| W55.8 | Contact with other mammals | — |
| W55.8 | Contact with other mammals | — |
| W55.09 | Other contact with cat | — |
| W55.09 | Other contact with cat | — |
| W55.09XA | Other contact with cat, initial encounter | ✓ |
| W55.09XA | Other contact with cat, initial encounter | ✓ |
| W55.09XD | Other contact with cat, subsequent encounter | ✓ |
| W55.09XD | Other contact with cat, subsequent encounter | ✓ |
| W55.09XS | Other contact with cat, sequela | ✓ |
| W55.09XS | Other contact with cat, sequela | ✓ |
| W55.11 | Bitten by horse | — |
| W55.11 | Bitten by horse | — |
| W55.11XA | Bitten by horse, initial encounter | ✓ |
| W55.11XA | Bitten by horse, initial encounter | ✓ |
| W55.11XD | Bitten by horse, subsequent encounter | ✓ |
| W55.11XD | Bitten by horse, subsequent encounter | ✓ |
| W55.11XS | Bitten by horse, sequela | ✓ |
| W55.11XS | Bitten by horse, sequela | ✓ |
| W55.12 | Struck by horse | — |
| W55.12 | Struck by horse | — |
| W55.12XA | Struck by horse, initial encounter | ✓ |
| W55.12XA | Struck by horse, initial encounter | ✓ |
| W55.12XD | Struck by horse, subsequent encounter | ✓ |
| W55.12XD | Struck by horse, subsequent encounter | ✓ |
| W55.12XS | Struck by horse, sequela | ✓ |
| W55.12XS | Struck by horse, sequela | ✓ |
| W55.19 | Other contact with horse | — |
| W55.19 | Other contact with horse | — |
| W55.19XA | Other contact with horse, initial encounter | ✓ |
| W55.19XA | Other contact with horse, initial encounter | ✓ |
| W55.19XD | Other contact with horse, subsequent encounter | ✓ |
| W55.19XD | Other contact with horse, subsequent encounter | ✓ |
| W55.19XS | Other contact with horse, sequela | ✓ |
| W55.19XS | Other contact with horse, sequela | ✓ |
| W55.21 | Bitten by cow | — |
| W55.21 | Bitten by cow | — |
| W55.21XA | Bitten by cow, initial encounter | ✓ |
| W55.21XA | Bitten by cow, initial encounter | ✓ |
| W55.21XD | Bitten by cow, subsequent encounter | ✓ |
| W55.21XD | Bitten by cow, subsequent encounter | ✓ |
| W55.21XS | Bitten by cow, sequela | ✓ |
| W55.21XS | Bitten by cow, sequela | ✓ |
| W55.22 | Struck by cow | — |
| W55.22 | Struck by cow | — |
| W55.22XA | Struck by cow, initial encounter | ✓ |
| W55.22XA | Struck by cow, initial encounter | ✓ |
| W55.22XD | Struck by cow, subsequent encounter | ✓ |
| W55.22XD | Struck by cow, subsequent encounter | ✓ |
| W55.22XS | Struck by cow, sequela | ✓ |
| W55.22XS | Struck by cow, sequela | ✓ |
| W55.29 | Other contact with cow | — |
| W55.29 | Other contact with cow | — |
| W55.29XA | Other contact with cow, initial encounter | ✓ |
| W55.29XA | Other contact with cow, initial encounter | ✓ |
| W55.29XD | Other contact with cow, subsequent encounter | ✓ |
| W55.29XD | Other contact with cow, subsequent encounter | ✓ |
| W55.29XS | Other contact with cow, sequela | ✓ |
| W55.29XS | Other contact with cow, sequela | ✓ |
| W55.31 | Bitten by other hoof stock | — |
| W55.31 | Bitten by other hoof stock | — |
| W55.31XA | Bitten by other hoof stock, initial encounter | ✓ |
| W55.31XA | Bitten by other hoof stock, initial encounter | ✓ |
| W55.31XD | Bitten by other hoof stock, subsequent encounter | ✓ |
| W55.31XD | Bitten by other hoof stock, subsequent encounter | ✓ |
| W55.31XS | Bitten by other hoof stock, sequela | ✓ |
| W55.31XS | Bitten by other hoof stock, sequela | ✓ |
| W55.32 | Struck by other hoof stock | — |
| W55.32 | Struck by other hoof stock | — |
| W55.32XA | Struck by other hoof stock, initial encounter | ✓ |
| W55.32XA | Struck by other hoof stock, initial encounter | ✓ |
| W55.32XD | Struck by other hoof stock, subsequent encounter | ✓ |
| W55.32XD | Struck by other hoof stock, subsequent encounter | ✓ |
| W55.32XS | Struck by other hoof stock, sequela | ✓ |
| W55.32XS | Struck by other hoof stock, sequela | ✓ |
| W55.39 | Other contact with other hoof stock | — |
| W55.39 | Other contact with other hoof stock | — |
| W55.39XA | Other contact with other hoof stock, initial encounter | ✓ |
| W55.39XA | Other contact with other hoof stock, initial encounter | ✓ |
| W55.39XD | Other contact with other hoof stock, subsequent encounter | ✓ |
| W55.39XD | Other contact with other hoof stock, subsequent encounter | ✓ |
| W55.39XS | Other contact with other hoof stock, sequela | ✓ |
| W55.39XS | Other contact with other hoof stock, sequela | ✓ |
| W55.41 | Bitten by pig | — |
| W55.41 | Bitten by pig | — |
| W55.41XA | Bitten by pig, initial encounter | ✓ |
| W55.41XA | Bitten by pig, initial encounter | ✓ |
| W55.41XD | Bitten by pig, subsequent encounter | ✓ |
| W55.41XD | Bitten by pig, subsequent encounter | ✓ |
| W55.41XS | Bitten by pig, sequela | ✓ |
| W55.41XS | Bitten by pig, sequela | ✓ |
| W55.42 | Struck by pig | — |
| W55.42 | Struck by pig | — |
| W55.42XA | Struck by pig, initial encounter | ✓ |
| W55.42XA | Struck by pig, initial encounter | ✓ |
| W55.42XD | Struck by pig, subsequent encounter | ✓ |
| W55.42XD | Struck by pig, subsequent encounter | ✓ |
| W55.42XS | Struck by pig, sequela | ✓ |
| W55.42XS | Struck by pig, sequela | ✓ |
| W55.49 | Other contact with pig | — |
| W55.49 | Other contact with pig | — |
| W55.49XA | Other contact with pig, initial encounter | ✓ |
| W55.49XA | Other contact with pig, initial encounter | ✓ |
| W55.49XD | Other contact with pig, subsequent encounter | ✓ |
| W55.49XD | Other contact with pig, subsequent encounter | ✓ |
| W55.49XS | Other contact with pig, sequela | ✓ |
| W55.49XS | Other contact with pig, sequela | ✓ |
| W55.51 | Bitten by raccoon | — |
| W55.51 | Bitten by raccoon | — |
| W55.51XA | Bitten by raccoon, initial encounter | ✓ |
| W55.51XA | Bitten by raccoon, initial encounter | ✓ |
| W55.51XD | Bitten by raccoon, subsequent encounter | ✓ |
| W55.51XD | Bitten by raccoon, subsequent encounter | ✓ |
| W55.51XS | Bitten by raccoon, sequela | ✓ |
| W55.51XS | Bitten by raccoon, sequela | ✓ |
| W55.52 | Struck by raccoon | — |
| W55.52 | Struck by raccoon | — |
| W55.52XA | Struck by raccoon, initial encounter | ✓ |
| W55.52XA | Struck by raccoon, initial encounter | ✓ |
| W55.52XD | Struck by raccoon, subsequent encounter | ✓ |
| W55.52XD | Struck by raccoon, subsequent encounter | ✓ |
| W55.52XS | Struck by raccoon, sequela | ✓ |
| W55.52XS | Struck by raccoon, sequela | ✓ |
| W55.59 | Other contact with raccoon | — |
| W55.59 | Other contact with raccoon | — |
| W55.59XA | Other contact with raccoon, initial encounter | ✓ |
| W55.59XA | Other contact with raccoon, initial encounter | ✓ |
| W55.59XD | Other contact with raccoon, subsequent encounter | ✓ |
| W55.59XD | Other contact with raccoon, subsequent encounter | ✓ |
| W55.59XS | Other contact with raccoon, sequela | ✓ |
| W55.59XS | Other contact with raccoon, sequela | ✓ |
| W55.81 | Bitten by other mammals | — |
| W55.81 | Bitten by other mammals | — |
| W55.81XA | Bitten by other mammals, initial encounter | ✓ |
| W55.81XA | Bitten by other mammals, initial encounter | ✓ |
| W55.81XD | Bitten by other mammals, subsequent encounter | ✓ |
| W55.81XD | Bitten by other mammals, subsequent encounter | ✓ |
| W55.81XS | Bitten by other mammals, sequela | ✓ |
| W55.81XS | Bitten by other mammals, sequela | ✓ |
| W55.82 | Struck by other mammals | — |
| W55.82 | Struck by other mammals | — |
| W55.82XA | Struck by other mammals, initial encounter | ✓ |
| W55.82XA | Struck by other mammals, initial encounter | ✓ |
| W55.82XD | Struck by other mammals, subsequent encounter | ✓ |
| W55.82XD | Struck by other mammals, subsequent encounter | ✓ |
| W55.82XS | Struck by other mammals, sequela | ✓ |
| W55.82XS | Struck by other mammals, sequela | ✓ |
| W55.89 | Other contact with other mammals | — |
| W55.89 | Other contact with other mammals | — |
| W55.89XA | Other contact with other mammals, initial encounter | ✓ |
| W55.89XA | Other contact with other mammals, initial encounter | ✓ |
| W55.89XD | Other contact with other mammals, subsequent encounter | ✓ |
| W55.89XD | Other contact with other mammals, subsequent encounter | ✓ |
| W55.89XS | Other contact with other mammals, sequela | ✓ |
| W55.89XS | Other contact with other mammals, sequela | ✓ |
Frequently asked questions
What is ICD-10-CM code W55?
W55 is an ICD-10-CM category covering Contact with other mammals. It contains 182 more specific diagnosis codes, 126 of which are billable.
Is W55 a billable code?
No — W55 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example W55.0 — Contact with cat). 126 of the 182 codes under W55 are billable.
What codes fall under W55?
W55 includes W55.0, W55.0, W55.01, W55.01, W55.1, plus 177 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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