W28: Contact with powered lawn mower
W28 is a non-billable header ICD-10-CM code for contact with powered lawn mower. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to code W28
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- contact with nonpowered lawn mower (W27.1)
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- exposure to electric current (W86.-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Powered lawn mower (commercial) (residential)
Other codes that can never be billed with W28
Their own Excludes1 notes name this code, so the conflict is not listed above.
- W20Struck by thrown, projected or falling object
- W23Caught, crushed, jammed or pinched in or between objects
- W29.3Contact with powered garden and outdoor hand tools and machinery
- W29.3XXAContact with powered garden and outdoor hand tools and machinery, initial encounter
- W29.3XXDContact with powered garden and outdoor hand tools and machinery, subsequent encounter
- W29.3XXSContact with powered garden and outdoor hand tools and machinery, sequela
- W31.82Contact with other commercial machinery
- W31.82XAContact with other commercial machinery, initial encounter
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- Contact›with›lawnmower(powered) (ridden)
- Contact›with›tool›powered›lawn mower
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead W28
3 child codes. Green means billable.