W31.9XXABillable

Contact with unspecified machinery, initial encounter

Chapter
20. External causes of morbidity
Category
W31
Effective date
October 1, 2026

Related codes in category W31

Frequently asked questions

What is ICD-10 code W31.9XXA?

W31.9XXA is an ICD-10-CM diagnosis code for Contact with unspecified machinery, initial encounter.

Is W31.9XXA a billable code?

Yes. W31.9XXA is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is W31.9XXA in?

W31.9XXA falls under Chapter 20: External causes of morbidity.

When did W31.9XXA become effective?

W31.9XXA has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to W31.9XXA?

W31.9XXA belongs to category W31, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.