W20-W49 ICD-10-CM Code: Exposure to inanimate mechanical forces
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Coding at a Glance
- Tabular directives
- 4 Excludes1
Coding instructions
Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for W20-W49 in the official ICD-10-CM tabular list, quoted as published.
Excludes1 — Not Coded Here
Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
- assault (X92-Y09) Compare W20-W49 vs X92 →
- contact or collision with animals or persons (W50-W64) Compare W20-W49 vs W50 →
- exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-) Compare W20-W49 vs Y36 →
- intentional self-harm (X71-X83) Compare W20-W49 vs X71 →
Code Overview
MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.
Sources for this page
Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.
- Code, title, tabular notes and index terms Official source data
- CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
- Change history and date-of-service validity Official source data
- CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
- Comparisons, relationships and the contextual map MedCoder structured relationship
- Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
- Summary and FAQ answers MedCoder explanation
- Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.
Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates
Change history
No changes recorded for this code. This ledger tracks additions, deletions, description changes and billable-status changes from FY2016 onward. Note changes are tracked from FY2027 only.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to W20-W49 in its code family, with their registry titles.
- W20 — Struck by thrown, projected or falling object
- W21 — Striking against or struck by sports equipment
- W22 — Striking against or struck by other objects
- W23 — Caught, crushed, jammed or pinched in or between objects
- W24 — Contact with lifting and transmission devices, not elsewhere classified
- W25 — Contact with sharp glass
- W26 — Contact with other sharp objects
- W27 — Contact with nonpowered hand tool
- W28 — Contact with powered lawn mower
- W29 — Contact with other powered hand tools and household machinery
- W30 — Contact with agricultural machinery
- W31 — Contact with other and unspecified machinery
- W32 — Accidental handgun discharge and malfunction
- W33 — Accidental rifle, shotgun and larger firearm discharge and malfunction
- W34 — Accidental discharge and malfunction from other and unspecified firearms and guns
- W35 — Explosion and rupture of boiler
- W36 — Explosion and rupture of gas cylinder
- W37 — Explosion and rupture of pressurized tire, pipe or hose
- W38 — Explosion and rupture of other specified pressurized devices
- W39 — Discharge of firework
- W40 — Explosion of other materials
- W42 — Exposure to noise
- W44 — Foreign body entering into or through a natural orifice
- W45 — Foreign body or object entering through skin
- W46 — Contact with hypodermic needle
- W49 — Exposure to other inanimate mechanical forces