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

X13 Contact with steam and other hot vapors

All 6 codes in the X13 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

6

Can lead a claim

0

Cannot lead a claim

6

What CMS assigns to X13

None of the 6 codes is assigned a clinical group. None of the 6 is assigned a comorbidity subgroup. None can lead a claim.

Every code in X13

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
X13.0 Inhalation of steam and other hot vapors
X13.0XXAInhalation of steam and other hot vapors, initial encounterCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
X13.0XXDInhalation of steam and other hot vapors, subsequent encounterCMS: Inhalation of steam and other hot vapors, subs encntrCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
X13.0XXSInhalation of steam and other hot vapors, sequelaCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
X13.1 Other contact with steam and other hot vapors
X13.1XXAOther contact with steam and other hot vapors, initial encounterCMS: Other contact with steam and other hot vapors, init encntrCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
X13.1XXDOther contact with steam and other hot vapors, subsequent encounterCMS: Other contact with steam and other hot vapors, subs encntrCannot lead a claimExternal cause of injury code not reportable as principal diagnosisNoneNone
X13.1XXSOther contact with steam and other hot vapors, 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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