W31.1XXS
Contact with metalworking machines, sequela
W31.1XXS (also written W311XXS) is a billable ICD-10-CM diagnosis code for contact with metalworking machines, sequela. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 27 codes in category W31 (Contact with other and unspecified machinery). Its 7th character, S, means sequela. Its coding notes include 7 Excludes1 entries.
7th character
Category W31 requires a 7th character. W31.1 has only 4 characters, so a placeholder X fills the empty positions.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
An external cause code is never a principal or first-listed diagnosis. Its 7th character is assigned for each encounter and should match the injury or condition code.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Inclusion terms
Conditions classified to this code.
- Contact with abrasive wheel
- Contact with forging machine
- Contact with lathe
- Contact with mechanical shears
- Contact with metal drilling machine
- Contact with milling machine
- Contact with power press
- Contact with rolling-mill
- Contact with metal sawing machine
Notes
Also from chapter/block level (1 note)
- This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.