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

T55 Toxic effect of soaps and detergents

All 24 codes in the T55 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

24

Can lead a claim

24

Cannot lead a claim

0

What CMS assigns to T55

All 24 codes group to MMTA - Other. None of the 24 is assigned a comorbidity subgroup. Every code can lead a claim.

Every code in T55

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
T55.0 Toxic effect of soaps
T55.0X Toxic effect of soaps
T55.0X1 Toxic effect of soaps, accidental (unintentional)
T55.0X1AToxic effect of soaps, accidental (unintentional), initial encounterCMS: Toxic effect of soaps, accidental (unintentional), initCan lead a claimANone
T55.0X1DToxic effect of soaps, accidental (unintentional), subsequent encounterCMS: Toxic effect of soaps, accidental (unintentional), subsCan lead a claimANone
T55.0X1SToxic effect of soaps, accidental (unintentional), sequelaCan lead a claimANone
T55.0X2 Toxic effect of soaps, intentional self-harm
T55.0X2AToxic effect of soaps, intentional self-harm, initial encounterCMS: Toxic effect of soaps, intentional self-harm, init encntrCan lead a claimANone
T55.0X2DToxic effect of soaps, intentional self-harm, subsequent encounterCMS: Toxic effect of soaps, intentional self-harm, subs encntrCan lead a claimANone
T55.0X2SToxic effect of soaps, intentional self-harm, sequelaCan lead a claimANone
T55.0X3 Toxic effect of soaps, assault
T55.0X3AToxic effect of soaps, assault, initial encounterCan lead a claimANone
T55.0X3DToxic effect of soaps, assault, subsequent encounterCan lead a claimANone
T55.0X3SToxic effect of soaps, assault, sequelaCan lead a claimANone
T55.0X4 Toxic effect of soaps, undetermined
T55.0X4AToxic effect of soaps, undetermined, initial encounterCan lead a claimANone
T55.0X4DToxic effect of soaps, undetermined, subsequent encounterCan lead a claimANone
T55.0X4SToxic effect of soaps, undetermined, sequelaCan lead a claimANone
T55.1 Toxic effect of detergents
T55.1X Toxic effect of detergents
T55.1X1 Toxic effect of detergents, accidental (unintentional)
T55.1X1AToxic effect of detergents, accidental (unintentional), initial encounterCMS: Toxic effect of detergents, accidental (unintentional), initCan lead a claimANone
T55.1X1DToxic effect of detergents, accidental (unintentional), subsequent encounterCMS: Toxic effect of detergents, accidental (unintentional), subsCan lead a claimANone
T55.1X1SToxic effect of detergents, accidental (unintentional), sequelaCMS: Toxic effect of detergents, accidental, sequelaCan lead a claimANone
T55.1X2 Toxic effect of detergents, intentional self-harm
T55.1X2AToxic effect of detergents, intentional self-harm, initial encounterCMS: Toxic effect of detergents, intentional self-harm, initCan lead a claimANone
T55.1X2DToxic effect of detergents, intentional self-harm, subsequent encounterCMS: Toxic effect of detergents, intentional self-harm, subsCan lead a claimANone
T55.1X2SToxic effect of detergents, intentional self-harm, sequelaCan lead a claimANone
T55.1X3 Toxic effect of detergents, assault
T55.1X3AToxic effect of detergents, assault, initial encounterCan lead a claimANone
T55.1X3DToxic effect of detergents, assault, subsequent encounterCan lead a claimANone
T55.1X3SToxic effect of detergents, assault, sequelaCan lead a claimANone
T55.1X4 Toxic effect of detergents, undetermined
T55.1X4AToxic effect of detergents, undetermined, initial encounterCan lead a claimANone
T55.1X4DToxic effect of detergents, undetermined, subsequent encounterCMS: Toxic effect of detergents, undetermined, subs encntrCan lead a claimANone
T55.1X4SToxic effect of detergents, undetermined, sequelaCan lead a claimANone

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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