October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

W31 Contact with other and unspecified machinery

All 27 codes in the W31 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

27

Can lead a claim

0

Cannot lead a claim

27

What CMS assigns to W31

None of the 27 codes is assigned a clinical group. None of the 27 is assigned a comorbidity subgroup. None can lead a claim.

Every code in W31

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
W31.0 Contact with mining and earth-drilling machinery
W31.0XXAContact with mining and earth-drilling machinery, initial encounterCMS: Contact w mining and earth-drilling machinery, init encntrCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.0XXDContact with mining and earth-drilling machinery, subsequent encounterCMS: Contact w mining and earth-drilling machinery, subs encntrCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.0XXSContact with mining and earth-drilling machinery, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.1 Contact with metalworking machines
W31.1XXAContact with metalworking machines, initial encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.1XXDContact with metalworking machines, subsequent encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.1XXSContact with metalworking machines, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.2 Contact with powered woodworking and forming machines
W31.2XXAContact with powered woodworking and forming machines, initial encounterCMS: Contact w powered woodworking and forming machines, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.2XXDContact with powered woodworking and forming machines, subsequent encounterCMS: Contact w powered woodworking and forming machines, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.2XXSContact with powered woodworking and forming machines, sequelaCMS: Contact w powered woodworking and forming machines, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.3 Contact with prime movers
W31.3XXAContact with prime movers, initial encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.3XXDContact with prime movers, subsequent encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.3XXSContact with prime movers, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.8 Contact with other specified machinery
W31.81 Contact with recreational machinery
W31.81XAContact with recreational machinery, initial encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.81XDContact with recreational machinery, subsequent encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.81XSContact with recreational machinery, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.82 Contact with other commercial machinery
W31.82XAContact with other commercial machinery, initial encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.82XDContact with other commercial machinery, subsequent encounterCMS: Contact with other commercial machinery, subs encntrCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.82XSContact with other commercial machinery, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.83 Contact with special construction vehicle in stationary use
W31.83XAContact with special construction vehicle in stationary use, initial encounterCMS: Contact w special construct vehicle in stationary use, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.83XDContact with special construction vehicle in stationary use, subsequent encounterCMS: Contact w special construct vehicle in stationary use, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.83XSContact with special construction vehicle in stationary use, sequelaCMS: Cntct w special construct vehicle in stationry use, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.89 Contact with other specified machinery
W31.89XAContact with other specified machinery, initial encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.89XDContact with other specified machinery, subsequent encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.89XSContact with other specified machinery, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.9 Contact with unspecified machinery
W31.9XXAContact with unspecified machinery, initial encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.9XXDContact with unspecified machinery, subsequent encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
W31.9XXSContact with unspecified machinery, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone

Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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