ICD10

ICD-10 Code W50: Accidental hit, strike, kick, twist, bite or scratch by another person

W50 is an ICD-10 diagnosis entry used to group records related to Accidental hit, strike, kick, twist, bite or scratch by another person. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for External causes of morbidity (V00-Y99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for External causes of morbidity (V00-Y99).

When is it used?

  • May be used when a clinician documents accidental hit, strike, kick, twist, bite or scratch by another person in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
20External causes of morbidity (V00-Y99)
block
V00-X58Accidents
block
W00-X58Other external causes of accidental injury
block
W50-W64Exposure to animate mechanical forces
currentW50-W64

Official coding notes

Includes
  • hit, strike, kick, twist, bite, or scratch by another person NOS
Excludes1 (do not code together)
  • assault by bodily force (Y04)
  • struck by objects (W20-W22)
7th character notes
  • The appropriate 7th character is to be added to each code from category W50
  • initial encounter
  • subsequent encounter
  • sequela

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
W50
Replacement codes
W50.0 — Accidental hit or strike by another personW50.1 — Accidental kick by another personW50.2 — Accidental twist by another personW50.3 — Accidental bite by another personW50.4 — Accidental scratch by another person

Common synonyms

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

Frequently asked questions

Code details

CodeW50
SystemICD10
Display nameAccidental hit, strike, kick, twist, bite or scratch by another person
ChapterExternal causes of morbidity (V00-Y99)
BlockExposure to animate mechanical forces

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.