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

V78 Bus occupant injured in noncollision transport accident

All 27 codes in the V78 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 V78

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 V78

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
V78.0 Driver of bus injured in noncollision transport accident in nontraffic accident
V78.0XXADriver of bus injured in noncollision transport accident in nontraffic accident, initial encounterCMS: Driver of bus injured in nonclsn trnsp acc nontraf, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.0XXDDriver of bus injured in noncollision transport accident in nontraffic accident, subsequent encounterCMS: Driver of bus injured in nonclsn trnsp acc nontraf, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.0XXSDriver of bus injured in noncollision transport accident in nontraffic accident, sequelaCMS: Driver of bus injured in nonclsn trnsp acc nontraf, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.1 Passenger on bus injured in noncollision transport accident in nontraffic accident
V78.1XXAPassenger on bus injured in noncollision transport accident in nontraffic accident, initial encounterCMS: Pasngr on bus injured in nonclsn trnsp acc nontraf, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.1XXDPassenger on bus injured in noncollision transport accident in nontraffic accident, subsequent encounterCMS: Pasngr on bus injured in nonclsn trnsp acc nontraf, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.1XXSPassenger on bus injured in noncollision transport accident in nontraffic accident, sequelaCMS: Pasngr on bus injured in nonclsn trnsp acc nontraf, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.2 Person on outside of bus injured in noncollision transport accident in nontraffic accident
V78.2XXAPerson on outside of bus injured in noncollision transport accident in nontraffic accident, initial encounterCMS: Person outside bus inj in nonclsn trnsp acc nontraf, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.2XXDPerson on outside of bus injured in noncollision transport accident in nontraffic accident, subsequent encounterCMS: Person outside bus inj in nonclsn trnsp acc nontraf, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.2XXSPerson on outside of bus injured in noncollision transport accident in nontraffic accident, sequelaCMS: Person outside bus inj in nonclsn trnsp acc nontraf, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.3 Unspecified occupant of bus injured in noncollision transport accident in nontraffic accident
V78.3XXAUnspecified occupant of bus injured in noncollision transport accident in nontraffic accident, initial encounterCMS: Occup of bus injured in nonclsn trnsp accident nontraf, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.3XXDUnspecified occupant of bus injured in noncollision transport accident in nontraffic accident, subsequent encounterCMS: Occup of bus injured in nonclsn trnsp accident nontraf, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.3XXSUnspecified occupant of bus injured in noncollision transport accident in nontraffic accident, sequelaCMS: Occup of bus injured in nonclsn trnsp acc nontraf, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.4 Person boarding or alighting from bus injured in noncollision transport accident
V78.4XXAPerson boarding or alighting from bus injured in noncollision transport accident, initial encounterCMS: Prsn brd/alit from bus injured in nonclsn trnsp acc, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.4XXDPerson boarding or alighting from bus injured in noncollision transport accident, subsequent encounterCMS: Prsn brd/alit from bus injured in nonclsn trnsp acc, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.4XXSPerson boarding or alighting from bus injured in noncollision transport accident, sequelaCMS: Prsn brd/alit from bus injured in nonclsn trnsp acc, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.5 Driver of bus injured in noncollision transport accident in traffic accident
V78.5XXADriver of bus injured in noncollision transport accident in traffic accident, initial encounterCMS: Driver of bus injured in nonclsn trnsp acc in traf, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.5XXDDriver of bus injured in noncollision transport accident in traffic accident, subsequent encounterCMS: Driver of bus injured in nonclsn trnsp acc in traf, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.5XXSDriver of bus injured in noncollision transport accident in traffic accident, sequelaCMS: Driver of bus injured in nonclsn trnsp acc in traf, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.6 Passenger on bus injured in noncollision transport accident in traffic accident
V78.6XXAPassenger on bus injured in noncollision transport accident in traffic accident, initial encounterCMS: Pasngr on bus injured in nonclsn trnsp acc in traf, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.6XXDPassenger on bus injured in noncollision transport accident in traffic accident, subsequent encounterCMS: Pasngr on bus injured in nonclsn trnsp acc in traf, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.6XXSPassenger on bus injured in noncollision transport accident in traffic accident, sequelaCMS: Pasngr on bus injured in nonclsn trnsp acc in traf, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.7 Person on outside of bus injured in noncollision transport accident in traffic accident
V78.7XXAPerson on outside of bus injured in noncollision transport accident in traffic accident, initial encounterCMS: Person outside bus inj in nonclsn trnsp acc in traf, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.7XXDPerson on outside of bus injured in noncollision transport accident in traffic accident, subsequent encounterCMS: Person outside bus inj in nonclsn trnsp acc in traf, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.7XXSPerson on outside of bus injured in noncollision transport accident in traffic accident, sequelaCMS: Person outside bus inj in nonclsn trnsp acc in traf, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.9 Unspecified occupant of bus injured in noncollision transport accident in traffic accident
V78.9XXAUnspecified occupant of bus injured in noncollision transport accident in traffic accident, initial encounterCMS: Occup of bus injured in nonclsn trnsp accident in traf, initCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.9XXDUnspecified occupant of bus injured in noncollision transport accident in traffic accident, subsequent encounterCMS: Occup of bus injured in nonclsn trnsp accident in traf, subsCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
V78.9XXSUnspecified occupant of bus injured in noncollision transport accident in traffic accident, sequelaCMS: Occup of bus injured in nonclsn trnsp acc in traf, 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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