W50 – Accidental hit, strike, kick, twist, bite or scratch by another person

ICD-10-CM 2027 diagnosis code · Exposure to animate mechanical forces

Non-billable header

ICD-10-CM code W50

Code: W50 (claims format: W50)
Description: Accidental hit, strike, kick, twist, bite or scratch by another person
Short description: Acc hit, strk, kick, twist, bite or scratch by another prsn
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 20. External causes of morbidity (V00-Y99)
Block: W50-W64 Exposure to animate mechanical forces

Billable codes under W50

W50 is a header code and cannot be used on claims. Choose the most specific code:

W50.0 – Accidental hit or strike by another personHeader (more codes below)
W50.1 – Accidental kick by another personHeader (more codes below)
W50.2 – Accidental twist by another personHeader (more codes below)
W50.3 – Accidental bite by another personHeader (more codes below)
W50.4 – Accidental scratch by another personHeader (more codes below)

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).

Character	Meaning
`A`	initial encounter
`D`	subsequent encounter
`S`	sequela

Notes for W50

Includes:

hit, strike, kick, twist, bite, or scratch by another person NOS

Excludes1 (not coded here):

assault by bodily force (Y04)
struck by objects (W20-W22)

7th character note:

The appropriate 7th character is to be added to each code from category W50

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block W50-W64

Excludes1 (not coded here):

Toxic effect of contact with venomous animals and plants (T63.-)

Frequently asked questions

What is ICD-10 code W50?

W50 is the ICD-10-CM code for accidental hit, strike, kick, twist, bite or scratch by another person, in the block W50-W64 (Exposure to animate mechanical forces).

Is W50 a billable code?

No. W50 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.