W50.3XXA is the authoritative medical code for Accidental bite by another person, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for accidental bite by another person, initial encounter (ICD-10-CM W50.3XXA), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Accidental bite by another person, initial encounter is a billable ICD-10-CM diagnosis code W50.3A. Includes: hit, strike, kick, twist, bite, or scratch by another person NOS. Inclusion terms: Human bite; Bite by another person NOS. Excludes1 (not coded here): assault by bodily force Y04; struck by objects W20-W22; Toxic effect of contact with venomous animals and plants T63.-. 7th character: The appropriate 7th character is to be added to each code from category W50.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W50.3XXA in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- hit, strike, kick, twist, bite, or scratch by another person NOS
Inclusion Terms
Alternative terms the tabular list files under this code.
- Human bite
- Bite by another person NOS
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- assault by bodily force Y04
- struck by objects W20-W22
- Toxic effect of contact with venomous animals and plants T63.-
Frequently Asked Questions (FAQ) & Clinical Guidance
Does W50.3XXA require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category W50.
What can't be coded together with W50.3XXA?
Per official ICD-10-CM Excludes1 instructions, W50.3XXA must not be reported together with: assault by bodily force (Y04); struck by objects (W20-W22); Toxic effect of contact with venomous animals and plants (T63.-).
What conditions are included under W50.3XXA?
Accidental bite by another person, initial encounter includes: Human bite; Bite by another person NOS.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to W50.3XXA in its code family, with their registry titles.
- W50 — Accidental hit, strike, kick, twist, bite or scratch by another person
- W50.0 — Accidental hit or strike by another person
- W50.1 — Accidental kick by another person
- W50.2 — Accidental twist by another person
- W50.3 — Accidental bite by another person
- W50.4 — Accidental scratch by another person